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#1501 2022-07-19 06:47:34

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/12 Thursday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/19 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 268.5 Sol Number: 513  Change in degrees is +.7 Julian date is: J0036513
Solar Longitude: 267.8 Sol Number: 512  Change in degrees is +.6 Julian date is: J0036512
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   207,479,886 km [26.4 km/s] Difference is +58500 <= 2438 km/hour at 8.0 on 07/19 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,421,386 km [26.4 km/s] Difference is +55769 <= 2353 km/hour at 8.0 on 07/18 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,365,617 km [26.4 km/s] Difference is +55057 <= 2266 km/hour at 8.3 on 07/17 (time 8:18)

---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: Star just below path: TYC 638-44-1 RA 02h 32m 11.1s Mg 11.20 Day 0 just ahead of 10 hour marker
A little dipper asterism ahead of Mars at the 10 hour marker - RA 02h 29m 30.1s - tail extends to HIP 11461 - Day 1 just past the 10 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---

Earth Distance 2022/07/19 179,399,210  (decrease)
Earth Distance 2022/07/18 180,210,742  (decrease)
Earth Distance 2022/07/17 180,957,111  (decrease)

---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 513 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 513 is Thursday  in the Proposed Business calendar for Mars.  Sol 484 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  June 20,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected July 27, 2022 (on 27th >> 28th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1502 2022-07-20 06:16:32

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

One day note: We are closing in on the last day of Astronomical Month 9 - Two more Sols should flip the calendar

Today on Mars: 0036/19/13 Friday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/20 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 269.1 Sol Number: 514  Change in degrees is +.6 Julian date is: J0036514
Solar Longitude: 268.5 Sol Number: 513  Change in degrees is +.7 Julian date is: J0036513
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   207,540,456 km [26.4 km/s] Difference is +60570 <= 2524 km/hour at 8.0 on 07/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,479,886 km [26.4 km/s] Difference is +58500 <= 2438 km/hour at 8.0 on 07/19 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,421,386 km [26.4 km/s] Difference is +55769 <= 2353 km/hour at 8.0 on 07/18 (time 8:00)

---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: Galaxy just below path and ahead of 10 hour marker: PGC 1427418 RA 02h 34m 50.5s
Note the entire scene has a gray cast today - The scene is (most likely) provided by astronomical plates so quality varies
: TYC 638-44-1 RA 02h 32m 11.1s Mg 11.20 Day 0 just ahead of 10 hour marker - Day 1 just past the 10 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---

Earth Distance 2022/07/20 178,617,122  (decrease)
Earth Distance 2022/07/19 179,399,210  (decrease)
Earth Distance 2022/07/18 180,210,742  (decrease)

---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 514 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 514 is Friday  in the Proposed Business calendar for Mars.  Sol 484 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  June 20,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected July 27, 2022 (on 27th >> 28th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1503 2022-07-21 06:35:55

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/14 Saturday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

One day note: The Astronomical Month will increment in the next 24 hours, from 9 to 10

---

Today on Earth: 2022/07/21 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 269.7 Sol Number: 515  Change in degrees is +.6 Julian date is: J0036515
Solar Longitude: 269.1 Sol Number: 514  Change in degrees is +.6 Julian date is: J0036514
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   207,603,054 km [26.4 km/s] Difference is +62598 <= 2608 km/hour at 8.0 on 07/21 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,540,456 km [26.4 km/s] Difference is +60570 <= 2524 km/hour at 8.0 on 07/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,479,886 km [26.4 km/s] Difference is +58500 <= 2438 km/hour at 8.0 on 07/19 (time 8:00)

---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: Triangular asterism directly in path and well ahead of 10 hour marker RA 02h 37m 24.2s
Galaxy just below path and ahead of 10 hour marker: PGC 1427418 RA 02h 34m 50.5s  - Day 1 just past 10 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---

Earth Distance 2022/07/21 177,804,559  (decrease)
Earth Distance 2022/07/20 178,617,122  (decrease)
Earth Distance 2022/07/19 179,399,210  (decrease)

---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 515 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 515 is Saturday  in the Proposed Business calendar for Mars.  Sol 484 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  June 20,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected July 27, 2022 (on 27th >> 28th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1504 2022-07-22 07:08:31

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/15 Sunday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/22 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 270.4 Sol Number: 516  Change in degrees is +.7 Julian date is: J0036516
Solar Longitude: 269.7 Sol Number: 515  Change in degrees is +.6 Julian date is: J0036515
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   207,667,697 km [26.4 km/s] Difference is +64643 <= 2693 km/hour at 8.0 on 07/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,603,054 km [26.4 km/s] Difference is +62598 <= 2608 km/hour at 8.0 on 07/21 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,540,456 km [26.4 km/s] Difference is +60570 <= 2524 km/hour at 8.0 on 07/20 (time 8:00)

---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---


Next Up: A chain of objects right in the path: PGC 1439117, TYC 645-771-1 and 645-179-1 RA 02h 40m 43.7s all ahead of 10 hour marker
: Triangular asterism directly in path and well ahead of 10 hour marker RA 02h 37m 24.2s - Day 1 just past 10 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---

Earth Distance 2022/07/22 176,989,330  (decrease)
Earth Distance 2022/07/21 177,804,559  (decrease)
Earth Distance 2022/07/20 178,617,122  (decrease)

---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 516 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 516 is Sunday  in the Proposed Business calendar for Mars.  Sol 484 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  June 20,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected July 27, 2022 (on 27th >> 28th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1505 2022-07-23 06:30:16

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/16 Monday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/23 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 271.0 Sol Number: 517  Change in degrees is +.6 Julian date is: J0036517
Solar Longitude: 270.4 Sol Number: 516  Change in degrees is +.7 Julian date is: J0036516
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   207,734,364 km [26.4 km/s] Difference is +66667 <= 2778 km/hour at 8.0 on 07/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,667,697 km [26.4 km/s] Difference is +64643 <= 2693 km/hour at 8.0 on 07/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,603,054 km [26.4 km/s] Difference is +62598 <= 2608 km/hour at 8.0 on 07/21 (time 8:00)

---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: A cluster and two galaxies: All before 10 hour marker and in path: PGC 1445056 RA 02h 42m 30.4s >> PGC 1446532 RA 02h 43m 04.9s
: PGC 1439117, TYC 645-771-1 and 645-179-1 RA 02h 40m 43.7s all ahead of 10 hour marker - day 1 - spread from +10 to -5 hours

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---

Earth Distance 2022/07/23 176,204,798  (decrease)
Earth Distance 2022/07/22 176,989,330  (decrease)
Earth Distance 2022/07/21 177,804,559  (decrease)

---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 517 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 517 is Monday  in the Proposed Business calendar for Mars.  Sol 484 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  June 20,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected July 27, 2022 (on 27th >> 28th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1506 2022-07-24 12:05:52

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/17 Tuesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/24 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 271.6 Sol Number: 518  Change in degrees is +.6 Julian date is: J0036518
Solar Longitude: 271.0 Sol Number: 517  Change in degrees is +.6 Julian date is: J0036517
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   207,803,042 km [26.4 km/s] Difference is +68678 <= 2862 km/hour at 8.0 on 07/24 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,734,364 km [26.4 km/s] Difference is +66667 <= 2778 km/hour at 8.0 on 07/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,667,697 km [26.4 km/s] Difference is +64643 <= 2693 km/hour at 8.0 on 07/22 (time 8:00)

---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: A micro-Boomer HIP 12838 Mg 7.79 above path and about 8 hours ahead - TYC 646-704-1 Mg 11.31 RA 02h 45m 42.6s Day 0 ahead of 10 hour
PGC 1445056 RA 02h 42m 30.4s >> PGC 1446532 RA 02h 43m 04.9s - Day 1 both are to right of the 10 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---

Earth Distance 2022/07/24 175,211,333  (decrease)
Earth Distance 2022/07/23 176,204,798  (decrease)
Earth Distance 2022/07/22 176,989,330  (decrease)

---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 518 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 518 is Tuesday  in the Proposed Business calendar for Mars.  Sol 484 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  June 20,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected July 27, 2022 (on 27th >> 28th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1507 2022-07-25 10:40:04

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/18 Wednesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/25 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 272.2 Sol Number: 519  Change in degrees is +.6 Julian date is: J0036519
Solar Longitude: 271.6 Sol Number: 518  Change in degrees is +.6 Julian date is: J0036518
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   207,873,765 km [26.4 km/s] Difference is +70723 <= 2947 km/hour at 8.0 on 07/25 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,803,042 km [26.4 km/s] Difference is +68678 <= 2862 km/hour at 8.0 on 07/24 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,734,364 km [26.4 km/s] Difference is +66667 <= 2778 km/hour at 8.0 on 07/23 (time 8:00)

---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: Day 0 ahead of 10 hour marker - below path TYC 646-338-1 Mg 11.25 RA 02h 48m 38.1s
HIP 12838 Mg 7.79 above path and about 8 hours ahead - TYC 646-704-1 Mg 11.31 RA 02h 45m 42.6s Day 0 ahead of 10 hour  - day 1 post 10 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---

Earth Distance 2022/07/25 174,454,891  (decrease)
Earth Distance 2022/07/24 175,211,333  (decrease)
Earth Distance 2022/07/23 176,204,798  (decrease)

---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 519 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 519 is Wednesday  in the Proposed Business calendar for Mars.  Sol 484 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  June 20,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected July 27, 2022 (on 27th >> 28th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1508 2022-07-26 12:16:09

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/19 Thursday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/26 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 272.9 Sol Number: 520  Change in degrees is +.7 Julian date is: J0036520
Solar Longitude: 272.2 Sol Number: 519  Change in degrees is +.6 Julian date is: J0036519
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   207,949,792 km [26.3 km/s] Difference is +76027 <= 3029 km/hour at 9.1 on 07/26 (time 9:06)
Distance: Mars >> Sun per theskylive.com:   207,873,765 km [26.4 km/s] Difference is +70723 <= 2947 km/hour at 8.0 on 07/25 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,803,042 km [26.4 km/s] Difference is +68678 <= 2862 km/hour at 8.0 on 07/24 (time 8:00)

---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up - below 10 hour marker - TYC 646-322-1 Mg 9.05 RA 02h 50m 47.9s (Note PGC 1462538 above path)
TYC 646-338-1 Mg 11.25 RA 02h 48m 38.1s - Day 1 past 10 hour marker (next to UGC 2282)

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---

Earth Distance 2022/07/26 173,593,215  (decrease)
Earth Distance 2022/07/25 174,454,891  (decrease)
Earth Distance 2022/07/24 175,211,333  (decrease)

---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 520 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 520 is Thursday  in the Proposed Business calendar for Mars.  Sol 484 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  June 20,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected July 27, 2022 (on 27th >> 28th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1509 2022-07-27 06:52:52

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/20 Friday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/27 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 273.5 Sol Number: 521  Change in degrees is +.6 Julian date is: J0036521
Solar Longitude: 272.9 Sol Number: 520  Change in degrees is +.7 Julian date is: J0036520
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   208,021,099 km [26.3 km/s] Difference is +71307 <= 3114 km/hour at 8.0 on 07/27 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,949,792 km [26.3 km/s] Difference is +76027 <= 3029 km/hour at 9.1 on 07/26 (time 9:06)
Distance: Mars >> Sun per theskylive.com:   207,873,765 km [26.4 km/s] Difference is +70723 <= 2947 km/hour at 8.0 on 07/25 (time 8:00)

---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: Not much - unlabeled star at RA 02h 53m 06.9s at top of hydrogen balloon asterism ahead of and below 10 hour marker
- TYC 646-322-1 Mg 9.05 RA 02h 50m 47.9s (Note PGC 1462538 above path) - Day 1 below and just ahead of 10 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---

Earth Distance 2022/07/27 172,968,059  (decrease)
Earth Distance 2022/07/26 173,593,215  (decrease)
Earth Distance 2022/07/25 174,454,891  (decrease)

---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 521 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 521 is Friday  in the Proposed Business calendar for Mars.  Sol 484 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  June 20,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected July 27, 2022 (on 27th >> 28th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1510 2022-07-28 08:38:43

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/20 Friday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---  One Day Note: Today is Skip Day ... The Earth has accumulated 24 hours over Mars

Today on Earth: 2022/07/28 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 274.1 Sol Number: 521  Change in degrees is +.6 Julian date is: J0036521 ***skipday*** <<== search term to mark skip days
Solar Longitude: 273.5 Sol Number: 521  Change in degrees is +.6 Julian date is: J0036521
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   208,097,726 km [26.3 km/s] Difference is +76627 <= 3193 km/hour at 8.0 on 07/28 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,021,099 km [26.3 km/s] Difference is +71307 <= 3114 km/hour at 8.0 on 07/27 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,949,792 km [26.3 km/s] Difference is +76027 <= 3029 km/hour at 9.1 on 07/26 (time 9:06)

---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: Star and two galaxies just below path and ahead of 10 hour marker: TYC 647-320-1 Mg 11.41 RA 02h 55m 58.1s PGC 1470687 PGC 1470580
star at RA 02h 53m 06.9s at top of hydrogen balloon asterism ahead of and below 10 hour marker - just past 10 hour marker on Day 1

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---

Earth Distance 2022/07/28 172,101,222  (decrease)
Earth Distance 2022/07/27 172,968,059  (decrease)
Earth Distance 2022/07/26 173,593,215  (decrease)

---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 521 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 521 is Friday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  June 20,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1511 2022-07-29 06:59:38

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/21 Saturday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/07/29 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 274.7 Sol Number: 522  Change in degrees is +.6 Julian date is: J0036522
Solar Longitude: 274.1 Sol Number: 521  Change in degrees is +.6 Julian date is: J0036521
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   208,176,347 km [26.3 km/s] Difference is +78621 <= 3276 km/hour at 8.0 on 07/29 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,097,726 km [26.3 km/s] Difference is +76627 <= 3193 km/hour at 8.0 on 07/28 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,021,099 km [26.3 km/s] Difference is +71307 <= 3114 km/hour at 8.0 on 07/27 (time 8:00)

---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: Star and two galaxies just below path and ahead of 10 hour marker: TYC 647-320-1 Mg 11.41 RA 02h 55m 58.1s PGC 1470687 PGC 1470580
star at RA 02h 53m 06.9s at top of hydrogen balloon asterism ahead of and below 10 hour marker - just past 10 hour marker on Day 1

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/07/29 171,343,822  (decrease)
Earth Distance 2022/07/28 172,101,222  (decrease)
Earth Distance 2022/07/27 172,968,059  (decrease)

---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 522 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 522 is Saturday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  June 20,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1512 2022-07-30 07:31:34

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/22 Sunday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/07/30 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 275.4 Sol Number: 523  Change in degrees is +.7 Julian date is: J0036523
Solar Longitude: 274.7 Sol Number: 522  Change in degrees is +.6 Julian date is: J0036522
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   208,256,961 km [26.3 km/s] Difference is +80614 <= 3359 km/hour at 8.0 on 07/30 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,176,347 km [26.3 km/s] Difference is +78621 <= 3276 km/hour at 8.0 on 07/29 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,097,726 km [26.3 km/s] Difference is +76627 <= 3193 km/hour at 8.0 on 07/28 (time 8:00)

---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: Asterism in shape of a tugboat, just above 10 hour marker RA 03h 00m 27.8s on day 0
TYC 647-320-1 Mg 11.41 RA 02h 55m 58.1s PGC 1470687 PGC 1470580 - Day 1 - out of view on right

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/07/30 170,515,515  (decrease)
Earth Distance 2022/07/29 171,343,822  (decrease)
Earth Distance 2022/07/28 172,101,222  (decrease)

---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 523 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 523 is Sunday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1513 2022-07-31 06:59:21

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/23 Monday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/07/31 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 276.0 Sol Number: 524  Change in degrees is +.6 Julian date is: J0036524
Solar Longitude: 275.4 Sol Number: 523  Change in degrees is +.7 Julian date is: J0036523
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   208,339,464 km [26.3 km/s] Difference is +82503 <= 3438 km/hour at 8.0 on 07/31 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,256,961 km [26.3 km/s] Difference is +80614 <= 3359 km/hour at 8.0 on 07/30 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,176,347 km [26.3 km/s] Difference is +78621 <= 3276 km/hour at 8.0 on 07/29 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: Galaxy PGC 1488622 RA 03h 03m 23.7s at East end of a little arch shaped asterism - Day 0 ahead of 10 hour marker
: Asterism in shape of a tugboat, just above 10 hour marker RA 03h 00m 27.8s on day 0 - Day 1 right where expected, to right of 10 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/07/31 169,721,222  (decrease)
Earth Distance 2022/07/30 170,515,515  (decrease)
Earth Distance 2022/07/29 171,343,822  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 524 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 524 is Monday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1514 2022-08-01 06:35:27

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/24 Tuesday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/08/01 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 276.6 Sol Number: 525  Change in degrees is +.6 Julian date is: J0036525
Solar Longitude: 276.0 Sol Number: 524  Change in degrees is +.6 Julian date is: J0036524
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   208,423,858 km [26.3 km/s] Difference is +84394 <= 3516 km/hour at 8.0 on 08/01 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,339,464 km [26.3 km/s] Difference is +82503 <= 3438 km/hour at 8.0 on 07/31 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,256,961 km [26.3 km/s] Difference is +80614 <= 3359 km/hour at 8.0 on 07/30 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Note: Mini-Boomer above path and 5 hours ahead of Mars: HIP 14318 Mg 8.47 - unlikely to remain visible after 24 Earth hours
Next up: Galaxy well above path and ahead of 10 hour marker: PGC 1495538 RA 03h 05m 41.3s
: Galaxy PGC 1488622 RA 03h 03m 23.7s at East end of a little arch shaped asterism - Day 0 ahead of 10 hour marker - Day 1 just above 10 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/08/01 168,918,672  (decrease)
Earth Distance 2022/07/31 169,721,222  (decrease)
Earth Distance 2022/07/30 170,515,515  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 525 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 525 is Tuesday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Offline

#1515 2022-08-02 07:10:00

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/25 Wednesday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/08/02 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 277.2 Sol Number: 526  Change in degrees is +.6 Julian date is: J0036526
Solar Longitude: 276.6 Sol Number: 525  Change in degrees is +.6 Julian date is: J0036525
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   208,510,229 km [26.3 km/s] Difference is +86371 <= 3599 km/hour at 8.0 on 08/02 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,423,858 km [26.3 km/s] Difference is +84394 <= 3516 km/hour at 8.0 on 08/01 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,339,464 km [26.3 km/s] Difference is +82503 <= 3438 km/hour at 8.0 on 07/31 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: A distictive little asterism star pair is just above the path and well ahead of the 10 hour marker on Day 0 - RA 03h 08m 31.9s
Next up: HIP 14550 is far above the path and abreast of the 10 hour marker
Note: Mini-Boomer above path and 5 hours ahead of Mars: HIP 14318 Mg 8.47 - unlikely to remain visible after 24 Earth hours - Day 1 still visible at far right
: Galaxy well above path and ahead of 10 hour marker: PGC 1495538 RA 03h 05m 41.3s  - Day 1 just past the 10 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/08/02 168,083,397  (decrease)
Earth Distance 2022/08/01 168,918,672  (decrease)
Earth Distance 2022/07/31 169,721,222  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 526 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 526 is Wednesday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1516 2022-08-03 07:16:17

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/26 Thursday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/08/03 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 277.9 Sol Number: 527  Change in degrees is +.7 Julian date is: J0036527
Solar Longitude: 277.2 Sol Number: 526  Change in degrees is +.6 Julian date is: J0036526
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   208,598,502 km [26.3 km/s] Difference is +88273 <= 3678 km/hour at 8.0 on 08/03 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,510,229 km [26.3 km/s] Difference is +86371 <= 3599 km/hour at 8.0 on 08/02 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,423,858 km [26.3 km/s] Difference is +84394 <= 3516 km/hour at 8.0 on 08/01 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: There's nothing visible ahead of 10 hour marker... we have TYC 1225-91-1 Mg 10.12 at RA 03h 10h 18.4s at about 8 hours on Day 0
We have a celestial visitor near Mars: Comet 134P/Kowal-Vavrova - today's position is RA 03h 10m 03s
: A distictive little asterism star pair is just above the path and well ahead of the 10 hour marker on Day 0 - RA 03h 08m 31.9s - Day 1 right above the 10 hour
: HIP 14550 is far above the path and abreast of the 10 hour marker - Day 1 still visible and past the 10 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/08/03 167,265,292  (decrease)
Earth Distance 2022/08/02 168,083,397  (decrease)
Earth Distance 2022/08/01 168,918,672  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 527 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 527 is Thursday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Offline

#1517 2022-08-04 07:51:24

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/27 Friday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/08/04 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 278.5 Sol Number: 528  Change in degrees is +.6 Julian date is: J0036528
Solar Longitude: 277.9 Sol Number: 527  Change in degrees is +.7 Julian date is: J0036527
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.  << At next Aphelion, record the Mars date J00#####
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   208,688,660 km [26.3 km/s] Difference is +90158 <= 3757 km/hour at 8.0 on 08/04 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,598,502 km [26.3 km/s] Difference is +88273 <= 3678 km/hour at 8.0 on 08/03 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,510,229 km [26.3 km/s] Difference is +86371 <= 3599 km/hour at 8.0 on 08/02 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up:Two galaxies lie on or just below the path and ahead of the 10 hour marker: PGC 1504161 and PGC 1503848 RA 03h 13m 35.3s
TYC 1225-91-1 Mg 10.12 at RA 03h 10h 18.4s at about 8 hours on Day 0 - Day 1 right next to Comet 134P and well past the 10 hour marker
We have a celestial visitor near Mars: Comet 134P/Kowal-Vavrova - today's position is RA 03h 10m 03s

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/08/04 166,425,610  (decrease)
Earth Distance 2022/08/03 167,265,292  (decrease)
Earth Distance 2022/08/02 168,083,397  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 528 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 528 is Friday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1518 2022-08-05 06:49:50

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/19/28 Saturday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/08/05 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

One day note: This is the last day of Month 19 in the proposed Business Calendar for Mars.

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 279.1 Sol Number: 529  Change in degrees is +.6 Julian date is: J0036529
Solar Longitude: 278.5 Sol Number: 528  Change in degrees is +.6 Julian date is: J0036528
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.  << At next Aphelion, record the Mars date J00#####
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   208,780,718 km [26.3 km/s] Difference is +92058 <= 3836 km/hour at 8.0 on 08/05 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,688,660 km [26.3 km/s] Difference is +90158 <= 3757 km/hour at 8.0 on 08/04 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,598,502 km [26.3 km/s] Difference is +88273 <= 3678 km/hour at 8.0 on 08/03 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---
Next up: No labeled stars ahead of 10 hour marker so: Asterism pair above path and just ahead of 10 hour marker: RA 03h 15m 48.9s
Next up ... Note two mini-Boomers below path, numerous galaxies and several labeled stars....
: PGC 1504161 and PGC 1503848 RA 03h 13m 35.3s -Day 1 just past the 10 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/08/05 165,641,962  (decrease)
Earth Distance 2022/08/04 166,425,610  (decrease)
Earth Distance 2022/08/03 167,265,292  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 529 is in Month 19 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  19 extends from Sol 502 through 529. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 529 is Saturday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 19 of 24: <<== First month of Quarter 4

Offline

#1519 2022-08-06 06:51:34

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/20/01 Sunday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/08/06 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 279.7 Sol Number: 530  Change in degrees is +.6 Julian date is: J0036530
Solar Longitude: 279.1 Sol Number: 529  Change in degrees is +.6 Julian date is: J0036529
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.  << At next Aphelion, record the Mars date J00#####
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   208,874,635 km [26.2 km/s] Difference is +93917 <= 3913 km/hour at 8.0 on 08/06 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,780,718 km [26.3 km/s] Difference is +92058 <= 3836 km/hour at 8.0 on 08/05 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,688,660 km [26.3 km/s] Difference is +90158 <= 3757 km/hour at 8.0 on 08/04 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: Star right at the 10 hour marker: TYC 1232-625-1 Mg 9.91 RA 03h 18m 15.2s
: Asterism pair above path and just ahead of 10 hour marker: RA 03h 15m 48.9s - Day 1 well past the 10 hour marker
Note two mini-Boomers below path, numerous galaxies and several labeled stars.... - Day 1 still visible at far right of view

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/08/06 164,823,293  (decrease)
Earth Distance 2022/08/05 165,641,962  (decrease)
Earth Distance 2022/08/04 166,425,610  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 530 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 530 is Sunday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 20 of 24: <<== Second month of Quarter 4

Offline

#1520 2022-08-07 07:10:12

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/20/02 Monday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/08/07 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 280.4 Sol Number: 531  Change in degrees is +.7 Julian date is: J0036531
Solar Longitude: 279.7 Sol Number: 530  Change in degrees is +.6 Julian date is: J0036530
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.  << At next Aphelion, record the Mars date J00#####
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   208,970,415 km [26.2 km/s] Difference is +95780 <= 3991 km/hour at 8.0 on 08/07 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,874,635 km [26.2 km/s] Difference is +93917 <= 3913 km/hour at 8.0 on 08/06 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,780,718 km [26.3 km/s] Difference is +92058 <= 3836 km/hour at 8.0 on 08/05 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: No labelled objects are visible - A trio of stars is in the path and just ahead of the 11 hour marker at RA 03h 21m 01.0s
: TYC 1232-625-1 Mg 9.91 RA 03h 18m 15.2s  - Day 1 to West of 11 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/08/07 163,989,608  (decrease)
Earth Distance 2022/08/06 164,823,293  (decrease)
Earth Distance 2022/08/05 165,641,962  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 531 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 531 is Monday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 20 of 24: <<== Second month of Quarter 4

Offline

#1521 2022-08-08 09:00:06

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/20/03 Tuesday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/08/08 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 281.0 Sol Number: 532  Change in degrees is +.6 Julian date is: J0036532
Solar Longitude: 280.4 Sol Number: 531  Change in degrees is +.7 Julian date is: J0036531
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred on Sol 152 at 71 degrees Ls.  << At next Aphelion, record the Mars date J00#####
Aphelion occurred near 70 degrees Ls on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   209,068,053 km [26.2 km/s] Difference is +97638 <= 4068 km/hour at 8.0 on 08/08 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,970,415 km [26.2 km/s] Difference is +95780 <= 3991 km/hour at 8.0 on 08/07 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,874,635 km [26.2 km/s] Difference is +93917 <= 3913 km/hour at 8.0 on 08/06 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: TYC 1237-31-1 Mg 11.29 RA 03h 23m 20.3s above path and about 10 hours ahead of Mars
- A trio of stars is in the path and just ahead of the 11 hour marker at RA 03h 21m 01.0s - Day 1 just past the 11 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/08/08 163,103,666  (decrease)
Earth Distance 2022/08/07 163,989,608  (decrease)
Earth Distance 2022/08/06 164,823,293  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 532 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 532 is Tuesday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 20 of 24: <<== Second month of Quarter 4

Offline

#1522 2022-08-09 07:12:13

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/20/04 Wednesday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/08/09 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 281.6 Sol Number: 533  Change in degrees is +.6 Julian date is: J0036533
Solar Longitude: 281.0 Sol Number: 532  Change in degrees is +.6 Julian date is: J0036532
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred at--- Ls 071 on Sol 152.  << At next Aphelion, record the Mars date J00#####
Aphelion occurred near Ls 070 on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   209,167,505 km [26.2 km/s] Difference is +99452 <= 4144 km/hour at 8.0 on 08/09 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,068,053 km [26.2 km/s] Difference is +97638 <= 4068 km/hour at 8.0 on 08/08 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,970,415 km [26.2 km/s] Difference is +95780 <= 3991 km/hour at 8.0 on 08/07 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: Below galaxy, TYC 1237-653-1
Next up: Galaxy below path PGC 1523754
Next up: TYC 1237-889-1 Mg 9.70 RA 03h 26m 18.4s above path and ahead of 11 hour marker
: TYC 1237-31-1 Mg 11.29 RA 03h 23m 20.3s above path and about 10 hours ahead of Mars - Day 1 just past 11 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/08/09 162,342,333  (decrease)
Earth Distance 2022/08/08 163,103,666  (decrease)
Earth Distance 2022/08/07 163,989,608  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 533 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 533 is Wednesday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 20 of 24: <<== Second month of Quarter 4

Offline

#1523 2022-08-10 07:21:25

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/20/05 Thursday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/08/10 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 282.2 Sol Number: 534  Change in degrees is +.6 Julian date is: J0036534
Solar Longitude: 281.6 Sol Number: 533  Change in degrees is +.6 Julian date is: J0036533
---
Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred at--- Ls 071 on Sol 152.  << At next Aphelion, record the Mars date J00#####
Aphelion occurred near Ls 070 on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   209,268,842 km [26.2 km/s] Difference is +101337 <= 4222 km/hour at 8.0 on 08/10 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,167,505 km [26.2 km/s] Difference is +099452 <= 4144 km/hour at 8.0 on 08/09 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,068,053 km [26.2 km/s] Difference is +097638 <= 4068 km/hour at 8.0 on 08/08 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: Galaxy just above path ahead of 11 hour marker: PGC 1529306 RA 03h 28m 45.2s
: Below galaxy, TYC 1237-653-1 - Day 1 Right at the 11 hour marker
: Galaxy below path PGC 1523754  - Day 1 right at the 11 hour marker
: TYC 1237-889-1 Mg 9.70 RA 03h 26m 18.4s above path and ahead of 11 hour marker - Day 1 about 9 hours behind Mars

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/08/10 161,516,549  (decrease)
Earth Distance 2022/08/09 162,342,333  (decrease)
Earth Distance 2022/08/08 163,103,666  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 534 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 534 is Thursday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 20 of 24: <<== Second month of Quarter 4

Offline

#1524 2022-08-11 06:27:54

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/20/06 Friday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/08/11 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 282.8 Sol Number: 535  Change in degrees is +.6 Julian date is: J0036535
Solar Longitude: 282.2 Sol Number: 534  Change in degrees is +.6 Julian date is: J0036534
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred at--- Ls 071 on Sol 152.  << At next Aphelion, record the Mars date J00#####
Aphelion occurred near Ls 070 on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   209,371,887 km [26.2 km/s] Difference is +103045 <= 4294 km/hour at 8.0 on 08/11 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,268,842 km [26.2 km/s] Difference is +101337 <= 4222 km/hour at 8.0 on 08/10 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,167,505 km [26.2 km/s] Difference is +099452 <= 4144 km/hour at 8.0 on 08/09 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: TYC 1238-42-1 Mg 10.86 directly in path at RA 03h 31m 32.4s Day 0 well ahead of 11 hour marker
PGC 1529306 RA 03h 28m 45.2s  - Day 1 about 8 hour marker - Note pair of HIP's just past 11 hour marker (16152, 16150)

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/08/11 160,716,762  (decrease)
Earth Distance 2022/08/10 161,516,549  (decrease)
Earth Distance 2022/08/09 162,342,333  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 535 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 535 is Friday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 20 of 24: <<== Second month of Quarter 4

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#1525 2022-08-12 06:39:46

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 16,402

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/20/07 Saturday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- 

Today on Earth: 2022/08/12 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 283.5 Sol Number: 536  Change in degrees is +.7 Julian date is: J0036536
Solar Longitude: 282.8 Sol Number: 535  Change in degrees is +.6 Julian date is: J0036535
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun. 
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21
Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun.
Aphelion occurred at--- Ls 071 on Sol 152.  << At next Aphelion, record the Mars date J00#####
Aphelion occurred near Ls 070 on Sol 153 (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

---
Distance: Mars >> Sun per theskylive.com:   209,476,765 km [26.2 km/s] Difference is +104878 <= 4370 km/hour at 8.0 on 08/12 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,371,887 km [26.2 km/s] Difference is +103045 <= 4294 km/hour at 8.0 on 08/11 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,268,842 km [26.2 km/s] Difference is +101337 <= 4222 km/hour at 8.0 on 08/10 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

---

Next up: A star just below path: TYC 1238-750-1 Mg 10.36 RA -03h 34m 02.5s Day 0 well ahead of 11 hour marker
: TYC 1238-42-1 Mg 10.86 directly in path at RA 03h 31m 32.4s Day 0 well ahead of 11 hour marker - Day 1 just past the 5.5 hour marker

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/05/06, it is inclining upward at about 15 degrees

---
Earth Distance 2022/08/12 159,879,755  (decrease)
Earth Distance 2022/08/11 160,716,762  (decrease)
Earth Distance 2022/08/10 161,516,549  (decrease)
---

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 9 and 10 minutes. Communications delay would be 18+ minutes round trip.

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/06/29 Retrograde movement is still in progress on sol 493

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

---

Sol 536 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 522
Month  20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 536 is Saturday  in the Proposed Business calendar for Mars.  Sol 522 was a skip day on Earth.

---

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred  July 28,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected September 3, 2022 (range 3rd >> 4th) on Earth.

For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 20 of 24: <<== Second month of Quarter 4

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