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#1476 2022-06-24 06:57:52

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/14 Saturday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/06/24 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 252.6 Sol Number: 488  Change in degrees is +.6 Julian date is: 0036488
Solar Longitude: 252.0 Sol Number: 487  Change in degrees is +.6 Julian date is: 0036487
---
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:   206,649,624 km [26.5 km/s] Difference is +05308 <= 221 km/hour at 8.0 on 06/24 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,644,315 km [26.5 km/s] Difference is +03138 <= 131 km/hour at 8.0 on 06/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,641,178 km [26.5 km/s] Difference is +00968 <= +40 km/hour at 8.0 on 06/22 (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 pair of galaxies about 10 hours ahead. Lead: PGC 1312964 RA 01h 25m 32.2s / Trail: PGC 1312739
PGC 1307471 RA 01h 23m 12.7s Day 0 about 14 hours ahead -Day 1 about 12 hours past

---

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 2022/06/24 199,210,238  (decrease)
Earth Distance 2022/06/23 199,981,354  (decrease)
Earth Distance 2022/06/22 200,804,873  (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 11 and 12 minutes. Communications delay would be 22+ 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 2022/06/18 Retrograde movement is still in progress on sol 322

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 488 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 488 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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#1477 2022-06-25 06:22:58

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/15 Sunday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/06/25 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 253.3 Sol Number: 489  Change in degrees is +.7 Julian date is: 0036489
Solar Longitude: 252.6 Sol Number: 488  Change in degrees is +.6 Julian date is: 0036488
---
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:   206,657,101 km [26.5 km/s] Difference is +07477 <= 312 km/hour at 8.0 on 06/25 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,649,624 km [26.5 km/s] Difference is +05308 <= 221 km/hour at 8.0 on 06/24 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,644,315 km [26.5 km/s] Difference is +03138 <= 131 km/hour at 8.0 on 06/23 (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: Boomer and two galaxies below path: HIP 6915 Mg 6.52 RA 01h 29m 03.1s + PGC 1319436 and PGC 1318258
PGC 1312964 RA 01h 25m 32.2s / Trail: PGC 1312739 - Day 1 just barely still visible at extreme right edge of view - Mars is shown right of center

---

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 2022/06/25 198,438,422  (decrease)
Earth Distance 2022/06/24 199,210,238  (decrease)
Earth Distance 2022/06/23 199,981,354  (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 11 and 12 minutes. Communications delay would be 22+ 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 2022/06/18 Retrograde movement is still in progress on sol 322

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 489 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 489 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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#1478 2022-06-26 08:18:01

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/16 Monday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/06/26 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 253.9 Sol Number: 490  Change in degrees is +.6 Julian date is: 0036490
Solar Longitude: 253.3 Sol Number: 489  Change in degrees is +.7 Julian date is: 0036489
---
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:   206,666,745 km [26.5 km/s] Difference is +09644 <= 402 km/hour at 8.0 on 06/26 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,657,101 km [26.5 km/s] Difference is +07477 <= 312 km/hour at 8.0 on 06/25 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,649,624 km [26.5 km/s] Difference is +05308 <= 221 km/hour at 8.0 on 06/24 (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: HIP 7071 Mg 9.53 RA 01h 31m 08.8s Day 0 above path about 12 hours ahead
Next up: Galaxy just above path: PGC 1327744 RA 01h 31h 31.4m about 15 hours ahead
HIP 6915 Mg 6.52 RA 01h 29m 03.1s + PGC 1319436 and PGC 1318258 - Day 1 - All three are right where they should be - about 7-8 hours behind

---

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 2022/06/26 197,590,479  (decrease)
Earth Distance 2022/06/25 198,438,422  (decrease)
Earth Distance 2022/06/24 199,210,238  (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 10 and 11 minutes. Communications delay would be 20+ 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 2022/06/18 Retrograde movement is still in progress on sol 322

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 490 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 490 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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#1479 2022-06-27 07:05:02

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/17 Tuesday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/06/27 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 254.5 Sol Number: 491  Change in degrees is +.6 Julian date is: 0036491
Solar Longitude: 253.9 Sol Number: 490  Change in degrees is +.6 Julian date is: 0036490
---
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:   206,678,556 km [26.5 km/s] Difference is +11811 <= 492 km/hour at 8.0 on 06/27 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,666,745 km [26.5 km/s] Difference is +09644 <= 402 km/hour at 8.0 on 06/26 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,657,101 km [26.5 km/s] Difference is +07477 <= 312 km/hour at 8.0 on 06/25 (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: Galaxy above path: PGC 1334583 about 15 hours ahead RA 01h 33m 44.3s
HIP 7071 Mg 9.53 RA 01h 31m 08.8s Day 0 above path about 12 hours ahead - Day 1 about 10 hours past Mars
Galaxy just above path: PGC 1327744 RA 01h 31h 31.4m about 15 hours ahead  - Day 1 about 8 hours past 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 2022/06/27 196,833,678  (decrease)
Earth Distance 2022/06/26 197,590,479  (decrease)
Earth Distance 2022/06/25 198,438,422  (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 10 and 11 minutes. Communications delay would be 20+ 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 2022/06/18 Retrograde movement is still in progress on sol 322

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 491 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 491 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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#1480 2022-06-28 09:22:07

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/18 Wednesday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/06/28 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: 255.2 Sol Number: 492  Change in degrees is +.7 Julian date is: 0036492
Solar Longitude: 254.5 Sol Number: 491  Change in degrees is +.6 Julian date is: 0036491
---
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:   206,692,533 km [26.5 km/s] Difference is +13977 <= 582 km/hour at 8.0 on 06/28 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,678,556 km [26.5 km/s] Difference is +11811 <= 492 km/hour at 8.0 on 06/27 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,666,745 km [26.5 km/s] Difference is +09644 <= 402 km/hour at 8.0 on 06/26 (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: Unmarked vertical stack in path: Day 0 about 20 hours ahead RA 01h 37m 30.1s
Next up: Star TYC 621-651-1 Mg 10.33 RA 01h 36m 43.5s Day 0 about 11 hours ahead
PGC 1334583 about 15 hours ahead RA 01h 33m 44.3s  - Day 1 - about 13 hours past 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 2022/06/28 195,970,688  (decrease)
Earth Distance 2022/06/27 196,833,678  (decrease)
Earth Distance 2022/06/26 197,590,479  (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 10 and 11 minutes. Communications delay would be 20+ 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 2022/06/18 Retrograde movement is still in progress on sol 322

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 492 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 492 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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#1481 2022-06-29 06:47:58

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/19 Thursday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/06/29 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: 255.8 Sol Number: 493  Change in degrees is +.6 Julian date is: 0036493
Solar Longitude: 255.2 Sol Number: 492  Change in degrees is +.6 Julian date is: 0036492
---
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:   206,708,671 km [26.5 km/s] Difference is +16138 <= 672 km/hour at 8.0 on 06/29 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,692,533 km [26.5 km/s] Difference is +13977 <= 582 km/hour at 8.0 on 06/28 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,678,556 km [26.5 km/s] Difference is +11811 <= 492 km/hour at 8.0 on 06/27 (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: A small cluster of two stars and one galaxy: PGC 1346556 RA 01h 39m 52.2s about 20 hours ahead on Day 0
Unmarked vertical stack in path: Day 0 about 20 hours ahead RA 01h 37m 30.1s - Day 1 still visible and just above Mars
Star TYC 621-651-1 Mg 10.33 RA 01h 36m 43.5s Day 0 about 11 hours ahead  - Day 1 still on screen but obscured by 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 2022/06/29 195,261,370  (decrease)
Earth Distance 2022/06/28 195,970,688  (decrease)
Earth Distance 2022/06/27 196,833,678  (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 10 and 11 minutes. Communications delay would be 20+ 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 493 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 493 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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#1482 2022-06-30 07:17:37

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/20 Friday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/06/30 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: 256.7 Sol Number: 494  Change in degrees is +.6 Julian date is: 0036494
Solar Longitude: 255.8 Sol Number: 493  Change in degrees is +.6 Julian date is: 0036493
---
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:   206,726,968 km [26.5 km/s] Difference is +18297 <= 762 km/hour at 8.0 on 06/30 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,708,671 km [26.5 km/s] Difference is +16138 <= 672 km/hour at 8.0 on 06/29 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,692,533 km [26.5 km/s] Difference is +13977 <= 582 km/hour at 8.0 on 06/28 (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: We have another cluster of a galaxy and two stars in the path: Day 0 PGC 1352405 RA 01h s42m 31.4s about 20 hours ahead
PGC 1346556 RA 01h 39m 52.2s about 20 hours ahead on Day 0 - Day 1 just past the 5 hour marker and in the path

---

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 2022/06/30 194,455,216  (decrease)
Earth Distance 2022/06/29 195,261,370  (decrease)
Earth Distance 2022/06/28 195,970,688  (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 10 and 11 minutes. Communications delay would be 20+ 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 494 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 494 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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#1483 2022-07-01 10:59:30

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/21 Saturday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/01 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 257.1 Sol Number: 495  Change in degrees is +.6 Julian date is: 0036495
Solar Longitude: 256.5 Sol Number: 494  Change in degrees is +.6 Julian date is: 0036494
---
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:   206,747,605 km [26.5 km/s] Difference is +20637 <= 853 km/hour at 8.2 on 07/01 (time 8:12)
Distance: Mars >> Sun per theskylive.com:   206,726,968 km [26.5 km/s] Difference is +18297 <= 762 km/hour at 8.0 on 06/30 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,708,671 km [26.5 km/s] Difference is +16138 <= 672 km/hour at 8.0 on 06/29 (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: Star at the 5 hour marker: TYC 622-968-1 - Mg 8.48 RA 01h 44m 05.2s
Next up: No labelled objects are available in the region ahead of the 10 hour marker.
PGC 1352405 RA 01h s42m 31.4s about 20 hours ahead - Day 1 right at the 10 mile 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 2022/07/01 193,539,933  (decrease)
Earth Distance 2022/06/30 194,455,216  (decrease)
Earth Distance 2022/06/29 195,261,370  (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 10 and 11 minutes. Communications delay would be 20+ 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 495 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 495 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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#1484 2022-07-02 07:49:30

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/22 Sunday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/02 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 257.7 Sol Number: 496  Change in degrees is +.6 Julian date is: 0036496
Solar Longitude: 257.1 Sol Number: 495  Change in degrees is +.6 Julian date is: 0036495
---
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:   206,770,042 km [26.5 km/s] Difference is +22437 <= 943 km/hour at 8.0 on 07/02 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,747,605 km [26.5 km/s] Difference is +20637 <= 853 km/hour at 8.2 on 07/01 (time 8:12)
Distance: Mars >> Sun per theskylive.com:   206,726,968 km [26.5 km/s] Difference is +18297 <= 762 km/hour at 8.0 on 06/30 (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.

---

Next up: Star in path TYC 622-547-1 Mg 12.60 RA 01h 47m 20.5s Day 0 out ahead of 10 hour marker
Note Boomer at top of view on 2022/07/02 HIP 8198 Mg 4.17 - this will be out of view tomorrow
Star at the 5 hour marker: TYC 622-968-1 - Mg 8.48 RA 01h 44m 05.2s - Day 1 still visible - about 15 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 2022/07/02 192,853,222  (decrease)
Earth Distance 2022/07/01 193,539,933  (decrease)
Earth Distance 2022/06/30 194,455,216  (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 10 and 11 minutes. Communications delay would be 20+ 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 496 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 496 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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#1485 2022-07-03 11:18:05

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/23 Monday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/03 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 258.4 Sol Number: 497  Change in degrees is +.7 Julian date is: J0036497
Solar Longitude: 257.7 Sol Number: 496  Change in degrees is +.6 Julian date is: J0036496
---
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:   206,794,804 km [26.5 km/s] Difference is +24762 <= 1032 km/hour at 8.0 on 07/03 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,770,042 km [26.5 km/s] Difference is +22437 <= 0943 km/hour at 8.0 on 07/02 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,747,605 km [26.5 km/s] Difference is +20637 <= 0853 km/hour at 8.2 on 07/01 (time 8:12)

---

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 at 14 hours marker on Day 0: PGC 1365407 RA 01h 50m 24.6s
TYC 622-547-1 Mg 12.60 RA 01h 47m 20.5s Day 0 out ahead of 10 hour marker - Day 1 right at the 14 mile 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 2022/07/03 191,953,555  (decrease)
Earth Distance 2022/07/02 192,853,222  (decrease)
Earth Distance 2022/07/01 193,539,933  (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 10 and 11 minutes. Communications delay would be 20+ 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 497 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 497 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

Offline

#1486 2022-07-04 07:21:25

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/24 Tuesday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/04 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 259.0 Sol Number: 498  Change in degrees is +.6 Julian date is: J0036498
Solar Longitude: 258.4 Sol Number: 497  Change in degrees is +.7 Julian date is: J0036497
---
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:   206,821,725 km [26.5 km/s] Difference is +26921 <= 1122 km/hour at 8.0 on 07/04 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,794,804 km [26.5 km/s] Difference is +24762 <= 1032 km/hour at 8.0 on 07/03 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,770,042 km [26.5 km/s] Difference is +22437 <= 0943 km/hour at 8.0 on 07/02 (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: Galaxy PGC 1367702 RA 01h  52m 51.8s directly in path Day 0 ahead of 10 hour marker
Galaxy just above path at 14 hours marker on Day 0: PGC 1365407 RA 01h 50m 24.6s Day 1 just past 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 2022/07/04 191,286,003  (decrease)
Earth Distance 2022/07/03 191,953,555  (decrease)
Earth Distance 2022/07/02 192,853,222  (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 10 and 11 minutes. Communications delay would be 20+ 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 498 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 498 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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#1487 2022-07-05 07:12:01

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/25 Wednesday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/05 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: 259.6 Sol Number: 499  Change in degrees is +.6 Julian date is: J0036499
Solar Longitude: 259.0 Sol Number: 498  Change in degrees is +.6 Julian date is: J0036498
---
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:   206,850,773 km [26.5 km/s] Difference is +29048 <= 1210 km/hour at 8.0 on 07/05 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,821,725 km [26.5 km/s] Difference is +26921 <= 1122 km/hour at 8.0 on 07/04 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,794,804 km [26.5 km/s] Difference is +24762 <= 1032 km/hour at 8.0 on 07/03 (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: A galaxy seen edge on: PGC 1391 Magnitude 15.40 RA 01h 55m 15.8s Day 0 above path 18 hours ahead
PGC 1367702 RA 01h  52m 51.8s directly in path Day 0 ahead of 10 hour marker - Day 1 right at the 10 hour marker past 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 2022/07/05 190,500,999  (decrease)
Earth Distance 2022/07/04 191,286,003  (decrease)
Earth Distance 2022/07/03 191,953,555  (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 10 and 11 minutes. Communications delay would be 20+ 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 499 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 499 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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Day-of-Week  1     8    15   22
Sunday          475 482 489 496
Monday         476 483 490 497
Tuesday        477 484 491 498
Wednesday  478 485 492 499
Thursday      479 486 493 500
Friday            480 487 494       <<== Skipped Friday in Last month of Quarter
Saturday       481 488 495 501

Offline

#1488 2022-07-06 07:08:17

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/26 Thursday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/06 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: 260.3 Sol Number: 500  Change in degrees is +.7 Julian date is: J0036500
Solar Longitude: 259.6 Sol Number: 499  Change in degrees is +.6 Julian date is: J0036499
---
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:   206,726,968 km [26.5 km/s] Difference is +31196 <= 1300 km/hour at 8.0 on 07/06 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,850,773 km [26.5 km/s] Difference is +29048 <= 1210 km/hour at 8.0 on 07/05 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,821,725 km [26.5 km/s] Difference is +26921 <= 1122 km/hour at 8.0 on 07/04 (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: A pair of galaxies are below the path and ahead of the 10 hour marker: PGC 1373285 and PGC 138486 RA 01h 58m 10.3s
PGC 1391 Magnitude 15.40 RA 01h 55m 15.8s Day 0 above path 18 hours ahead - Day 1 standing tall above 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 2022/07/06 189,710,530  (decrease)
Earth Distance 2022/07/05 190,500,999  (decrease)
Earth Distance 2022/07/04 191,286,003  (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 10 and 11 minutes. Communications delay would be 20+ 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 500 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 500 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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#1489 2022-07-07 06:48:07

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/18/28 Saturday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---  One day note. This is the last day of the Quarter. Friday was skipped.

Today on Earth: 2022/07/07 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: 260.9 Sol Number: 501  Change in degrees is +.6 Julian date is: J0036501
Solar Longitude: 260.3 Sol Number: 500  Change in degrees is +.7 Julian date is: J0036500
---
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:   206,915,304 km [26.5 km/s] Difference is +33335 <= 1389 km/hour at 8.0 on 07/07 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,726,968 km [26.5 km/s] Difference is +31196 <= 1300 km/hour at 8.0 on 07/06 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,850,773 km [26.5 km/s] Difference is +29048 <= 1210 km/hour at 8.0 on 07/05 (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: Galaxy above path and about 8 hours ahead: PGC 138487 RA 01h 59m 42.6s
PGC 1373285 and PGC 138486 RA 01h 58m 10.3s Day 1 below 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 2022/07/07 188,929,444  (decrease)
Earth Distance 2022/07/06 189,710,530  (decrease)
Earth Distance 2022/07/05 190,500,999  (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 10 and 11 minutes. Communications delay would be 20+ 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 501 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 484
Month  18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 501 is Saturday  in the Proposed Business calendar for Mars.  Sol 484 was a skip day on Earth. One day note: Skip Friday in Month 18

---

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 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#1490 2022-07-08 07:06:48

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/19/01 Sunday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---  One day note. This is the first day of the Quarter, and the first day of Month 19

Today on Earth: 2022/07/08 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 261.5 Sol Number: 502  Change in degrees is +.6 Julian date is: J0036502
Solar Longitude: 260.9 Sol Number: 501  Change in degrees is +.6 Julian date is: J0036501
---
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:   206,950,766 km [26.5 km/s] Difference is +35462 <= 1478 km/hour at 8.0 on 07/08 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,915,304 km [26.5 km/s] Difference is +33335 <= 1389 km/hour at 8.0 on 07/07 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,726,968 km [26.5 km/s] Difference is +31196 <= 1300 km/hour at 8.0 on 07/06 (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: No labelled objects are available. There is an inverted V asterism just above the 10 hour marker, at RA 02h 02m 51.3s
Galaxy above path and about 8 hours ahead: PGC 138487 RA 01h 59m 42.6s  - Day 1 Still in view ... about 15 hours past 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 2022/07/08 188,126,870  (decrease)
Earth Distance 2022/07/07 188,929,444  (decrease)
Earth Distance 2022/07/06 189,710,530  (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 10 and 11 minutes. Communications delay would be 20+ 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 502 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 502 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

#1491 2022-07-09 06:34:15

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/19/02 Monday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/09 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 262.2 Sol Number: 503  Change in degrees is +.7 Julian date is: J0036503
Solar Longitude: 261.5 Sol Number: 502  Change in degrees is +.6 Julian date is: J0036502
---
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:   206,988,356 km [26.5 km/s] Difference is +37590 <= 1566 km/hour at 8.0 on 07/09 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,950,766 km [26.5 km/s] Difference is +35462 <= 1478 km/hour at 8.0 on 07/08 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,915,304 km [26.5 km/s] Difference is +33335 <= 1389 km/hour at 8.0 on 07/07 (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.

---

From top: TYC 633-704-1 Mg 11.95 RA 02h 06m 04.9s -- Galaxy PGC 1384425 RA 02h 06m 06.0s -- PGC 1383289 RA 02h 06m 38.5s
Next up: We have an abundance of labelled objects today! All are ahead of the 10 Hour marker
. There is an inverted V asterism just above the 10 hour marker, at RA 02h 02m 51.3s  - Day 1 - The inverted V is ** still ** visible at the far right of the screen.

---

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 2022/07/09 187,353,823  (decrease)
Earth Distance 2022/07/08 188,126,870  (decrease)
Earth Distance 2022/07/07 188,929,444  (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 10 and 11 minutes. Communications delay would be 20+ 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 503 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 503 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

#1492 2022-07-10 06:35:12

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/19/03 Tuesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/10 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 262.8 Sol Number: 504  Change in degrees is +.6 Julian date is: J0036504
Solar Longitude: 262.2 Sol Number: 503  Change in degrees is +.7 Julian date is: J0036503
---
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:   207,028,069 km [26.5 km/s] Difference is +39713 <= 1655 km/hour at 8.0 on 07/10 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,988,356 km [26.5 km/s] Difference is +37590 <= 1566 km/hour at 8.0 on 07/09 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,950,766 km [26.5 km/s] Difference is +35462 <= 1478 km/hour at 8.0 on 07/08 (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: We have an unusually large galaxy just below the path: NGC 821 Mg 11.80 RA 02h 08m 21.0s - Day 0 ahead of 10 hour marker
Next up: Today's view includes two robust Boomers ahead of the 10 hour marker: HIP 9952 is above the path HIP 9964 below
TYC 633-704-1 Mg 11.95 RA 02h 06m 04.9s -- Galaxy PGC 1384425 RA 02h 06m 06.0s -- PGC 1383289 RA 02h 06m 38.5s - Day 1 about 8 hours behind

---

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 2022/07/10 186,560,555  (decrease)
Earth Distance 2022/07/09 187,353,823  (decrease)
Earth Distance 2022/07/08 188,126,870  (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 10 and 11 minutes. Communications delay would be 20+ 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 504 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 504 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

#1493 2022-07-11 08:06:15

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

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

---

Today on Earth: 2022/07/11 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 263.4 Sol Number: 505  Change in degrees is +.6 Julian date is: J0036505
Solar Longitude: 262.8 Sol Number: 504  Change in degrees is +.6 Julian date is: J0036504
---
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:   207,070,252 km [26.5 km/s] Difference is +42183 <= 1743 km/hour at 8.2 on 07/11 (time 8:12)
Distance: Mars >> Sun per theskylive.com:   207,028,069 km [26.5 km/s] Difference is +39713 <= 1655 km/hour at 8.0 on 07/10 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,988,356 km [26.5 km/s] Difference is +37590 <= 1566 km/hour at 8.0 on 07/09 (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: We've swept into a region with a lot of dark space. PGC 1391580 is right at the 10 hour marker RA 02h 11m 02.5s
NGC 821 Mg 11.80 RA 02h 08m 21.0s - Day 0 ahead of 10 hour marker - it too is visible on the right, just past the 10 hour marker
HIP 9952 is above the path HIP 9964 below  - Day 1 still visible at far right 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 2022/07/11 185,718,301  (decrease)
Earth Distance 2022/07/10 186,560,555  (decrease)
Earth Distance 2022/07/09 187,353,823  (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 10 and 11 minutes. Communications delay would be 20+ 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 505 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 505 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

#1494 2022-07-12 06:32:21

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

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

---

Today on Earth: 2022/07/12 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: 264.0 Sol Number: 506  Change in degrees is +.6 Julian date is: J0036506
Solar Longitude: 263.4 Sol Number: 505  Change in degrees is +.6 Julian date is: J0036505
---
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:   207,113,845 km [26.4 km/s] Difference is +43593 <= 1832 km/hour at 8.0 on 07/12 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,070,252 km [26.5 km/s] Difference is +42183 <= 1743 km/hour at 8.2 on 07/11 (time 8:12)
Distance: Mars >> Sun per theskylive.com:   207,028,069 km [26.5 km/s] Difference is +39713 <= 1655 km/hour at 8.0 on 07/10 (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.

---

Above the asterism is TYC 634-544-1 Mg 10.94 RA 02h 13m 32.8s Day 0 about 13 hours ahead
Next up: There is a distinctive little unlabeled asterism at RA 02h 13m 42.s - in path Day 0 about 14 hours ahead - three stars in a line
PGC 1391580 is right at the 10 hour marker RA 02h 11m 02.5s  - Day 1 it is 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 2022/07/12 184,975,748  (decrease)
Earth Distance 2022/07/11 185,718,301  (decrease)
Earth Distance 2022/07/10 186,560,555  (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 10 and 11 minutes. Communications delay would be 20+ 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 506 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 506 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

Offline

#1495 2022-07-13 07:07:38

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/19/06 Friday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/13 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: 264.7 Sol Number: 507  Change in degrees is +.7 Julian date is: J0036507
Solar Longitude: 264.0 Sol Number: 506  Change in degrees is +.6 Julian date is: J0036506
---
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:   207,159,870 km [26.4 km/s] Difference is +46025 <= 1918 km/hour at 8.0 on 07/13 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,113,845 km [26.4 km/s] Difference is +43593 <= 1832 km/hour at 8.0 on 07/12 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,070,252 km [26.5 km/s] Difference is +42183 <= 1743 km/hour at 8.2 on 07/11 (time 8:12)

---

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: This region of space (as seen from Earth) is poorly populated, ahead of Mars' path ..; A little check mark asterism below Mars: RA 02h 16m 28.2s
TYC 634-544-1 Mg 10.94 RA 02h 13m 32.8s Day 0 about 13 hours ahead - Day 1 just past the 10 hour marker
asterism at RA 02h 13m 42.s - in path Day 0 about 14 hours ahead - three stars in a line - 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 2022/07/13 184,163,280  (decrease)
Earth Distance 2022/07/12 184,975,748  (decrease)
Earth Distance 2022/07/11 185,718,301  (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 10 and 11 minutes. Communications delay would be 20+ 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 507 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 507 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

#1496 2022-07-14 06:34:13

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/19/07 Saturday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/14 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: 265.3 Sol Number: 508  Change in degrees is +.6 Julian date is: J0036508
Solar Longitude: 264.7 Sol Number: 507  Change in degrees is +.7 Julian date is: J0036507
---
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:   207,208,006 km [26.4 km/s] Difference is +48136 <= 2006 km/hour at 8.0 on 07/14 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,159,870 km [26.4 km/s] Difference is +46025 <= 1918 km/hour at 8.0 on 07/13 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,113,845 km [26.4 km/s] Difference is +43593 <= 1832 km/hour at 8.0 on 07/12 (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 TYC 634-342-1 Mg 10.14 RA 02h 18m 58.0s in path and well ahead of 10 hour marker
A galaxy came into view - it is directly in the path: UGC 1755 Mg 15.50 view is top down RA 02h 16m 53.4s  - Day 1 just past 5 hour marker
A little check mark asterism below Mars: RA 02h 16m 28.2s - 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 2022/07/14 183,387,580  (decrease)
Earth Distance 2022/07/13 184,163,280  (decrease)
Earth Distance 2022/07/12 184,975,748  (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 10 and 11 minutes. Communications delay would be 20+ 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 508 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 506 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

#1497 2022-07-15 06:58:21

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/19/08 Sunday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/15 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 265.9 Sol Number: 509  Change in degrees is +.6 Julian date is: J0036509
Solar Longitude: 265.3 Sol Number: 508  Change in degrees is +.6 Julian date is: J0036508
---
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:   207,258,233 km [26.4 km/s] Difference is +50227 <= 2093 km/hour at 8.0 on 07/15 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,208,006 km [26.4 km/s] Difference is +48136 <= 2006 km/hour at 8.0 on 07/14 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,159,870 km [26.4 km/s] Difference is +46025 <= 1918 km/hour at 8.0 on 07/13 (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: HIP 11019 just above path and about 15 hours ahead on Day 0 RA 02h 21m 52.5s Mg 8.84
TYC 634-342-1 Mg 10.14 RA 02h 18m 58.0s in path and well ahead of 10 hour marker - Day 1 just after 10 hour marker (note HIP 10825 Mg 9.27)

---

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 2022/07/15 182,582,300  (decrease)
Earth Distance 2022/07/14 183,387,580  (decrease)
Earth Distance 2022/07/13 184,163,280  (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 10 and 11 minutes. Communications delay would be 20+ 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 509 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 509 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

#1498 2022-07-16 09:23:14

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/19/09 Monday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/16 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 266.6 Sol Number: 510  Change in degrees is +.7 Julian date is: J0036510
Solar Longitude: 265.9 Sol Number: 509  Change in degrees is +.6 Julian date is: J0036509
---
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:   207,310,560 km [26.4 km/s] Difference is +52327 <= 2180 km/hour at 8.0 on 07/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,258,233 km [26.4 km/s] Difference is +50227 <= 2093 km/hour at 8.0 on 07/15 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,208,006 km [26.4 km/s] Difference is +48136 <= 2006 km/hour at 8.0 on 07/14 (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 TYC 635-235-1 Mg 11.80 RA 02h 24m 44.4s Day 0 about 13 hours ahead just below path
HIP 11019 just above path and about 15 hours ahead on Day 0 RA 02h 21m 52.5s Mg 8.84 - 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 2022/07/16 181,703,976  (decrease)
Earth Distance 2022/07/15 182,582,300  (decrease)
Earth Distance 2022/07/14 183,387,580  (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 10 and 11 minutes. Communications delay would be 20+ 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 510 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 510 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

#1499 2022-07-17 07:55:38

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/19/10 Tuesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/07/17 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 267.2 Sol Number: 511  Change in degrees is +.6 Julian date is: J0036511
Solar Longitude: 266.6 Sol Number: 510  Change in degrees is +.7 Julian date is: J0036510
---
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:   207,365,617 km [26.4 km/s] Difference is +55057 <= 2266 km/hour at 8.3 on 07/17 (time 8:18)
Distance: Mars >> Sun per theskylive.com:   207,310,560 km [26.4 km/s] Difference is +52327 <= 2180 km/hour at 8.0 on 07/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,258,233 km [26.4 km/s] Difference is +50227 <= 2093 km/hour at 8.0 on 07/15 (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: an angle bracket asterism anchored by TYC 638-564-1 Mg 10.88 and TYC 638-542-1 Mg 11.82 - bend is RA 02h 27m 03.s
TYC 635-235-1 Mg 11.80 RA 02h 24m 44.4s Day 0 about 13 hours ahead just below path - Day 1 just in front 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 2022/07/17 180,957,111  (decrease)
Earth Distance 2022/07/16 181,703,976  (decrease)
Earth Distance 2022/07/15 182,582,300  (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 10 and 11 minutes. Communications delay would be 20+ 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

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Sol 511 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 511 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

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#1500 2022-07-18 06:20:57

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,760

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

Today on Mars: 0036/19/11 Wednesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))

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Today on Earth: 2022/07/18 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: 9 <<== The Astronomical month will increment when longitude reaches 270 degrees

Solar Longitude: 267.8 Sol Number: 512  Change in degrees is +.6 Julian date is: J0036512
Solar Longitude: 267.2 Sol Number: 511  Change in degrees is +.6 Julian date is: J0036511
---
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:   207,421,386 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)
Distance: Mars >> Sun per theskylive.com:   207,310,560 km [26.4 km/s] Difference is +52327 <= 2180 km/hour at 8.0 on 07/16 (time 8:00)

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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 little dipper asterism ahead of Mars at the 10 hour marker - RA 02h 29m 30.1s - tail extends to HIP 11461
TYC 638-564-1 Mg 10.88 and TYC 638-542-1 Mg 11.82 - bend is RA 02h 27m 03.s - Day 1 right at 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 2022/07/18 180,210,742  (decrease)
Earth Distance 2022/07/17 180,957,111  (decrease)
Earth Distance 2022/07/16 181,703,976  (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 10 and 11 minutes. Communications delay would be 20+ 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 512 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 512 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

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