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#1451 2022-05-30 06:31:16

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/17/18 Wednesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/30 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 236.8 Sol Number: 464  Change in degrees is +.6 Julian date is: 0036464
Solar Longitude: 236.2 Sol Number: 463  Change in degrees is +.7 Julian date is: 0036463
---
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
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:   207,164,811 km [26.4 km/s] Difference is -48346 <= -2014 km/hour at 8.0 on 05/30 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,213,157 km [26.4 km/s] Difference is -50428 <= -2101 km/hour at 8.0 on 05/29 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,263,585 km [26.4 km/s] Difference is -52505 <= -2188 km/hour at 8.0 on 05/28 (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: Star below path: TYC 2-1089-1 RA 00h 18m 51.5s Mg 9.52 and Galaxy above: PGC 1160907 RA 00h 18m 05.2s
10 hours ahead: PGC 1152003 RA 00h 14m 58.9s and PGC 1146389 RA 00h 15m 29.0s - Day 1 1152003 is off screen but 1146389 is still showing low right

---

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

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

---

Earth Distance 2022/05/30 219,135,595  (decrease)
Earth Distance 2022/05/29 219,944,222  (decrease)
Earth Distance 2022/05/28 220,780,972  (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 12 and 13 minutes. Communications delay would be 24+ 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 2022/01/04 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 464 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
Month  17 extends from Sol 447 through 474. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 464 is Wednesday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Offline

#1452 2022-05-31 06:16:03

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/17/19 Thursday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/31 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 237.4 Sol Number: 465  Change in degrees is +.6 Julian date is: 0036465
Solar Longitude: 236.8 Sol Number: 464  Change in degrees is +.6 Julian date is: 0036464
---
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
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:   207,118,569 km [26.4 km/s] Difference is -46242 <= -1927 km/hour at 8.0 on 05/31 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,164,811 km [26.4 km/s] Difference is -48346 <= -2014 km/hour at 8.0 on 05/30 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,213,157 km [26.4 km/s] Difference is -50428 <= -2101 km/hour at 8.0 on 05/29 (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: Mini-Boomer: HIP 1632 RA 00h 20m 28.5s Day 0 about 10 hours ahead above path
: TYC 2-1089-1 RA 00h 18m 51.5s Mg 9.52 and Galaxy above: PGC 1160907 RA 00h 18m 05.2s  - Day 1 about 7 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 2022/05/31 218,365,525  (decrease)
Earth Distance 2022/05/30 219,135,595  (decrease)
Earth Distance 2022/05/29 219,944,222  (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 12 and 13 minutes. Communications delay would be 24+ 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 2022/01/04 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 465 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
Month  17 extends from Sol 447 through 474. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 465 is Thursday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Offline

#1453 2022-06-01 07:11:34

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/17/20 Friday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/06/01 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 238.1 Sol Number: 466  Change in degrees is +.7 Julian date is: 0036466
Solar Longitude: 237.4 Sol Number: 465  Change in degrees is +.6 Julian date is: 0036465
---
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
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:   207,074,423 km [26.4 km/s] Difference is -44146 <= -1839 km/hour at 8.0 on 06/01 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,118,569 km [26.4 km/s] Difference is -46242 <= -1927 km/hour at 8.0 on 05/31 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,164,811 km [26.4 km/s] Difference is -48346 <= -2014 km/hour at 8.0 on 05/30 (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: Two galaxies bracketing path at 9 Hours mark: Upper PGC 1175021 RA 00h 22m 47.3s / Lower PGC 1168182 RA 00h 23m 33.3s
: HIP 1632 RA 00h 20m 28.5s Day 0 about 10 hours ahead above path - Day 1 about 12 hours past Mars (checked at 9 AM local time)

---

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 2022/06/01 217,528,874  (decrease)
Earth Distance 2022/05/31 218,365,525  (decrease)
Earth Distance 2022/05/30 219,135,595  (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 12 and 13 minutes. Communications delay would be 24+ 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 2022/01/04 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 466 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
Month  17 extends from Sol 447 through 474. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 466 is Friday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Offline

#1454 2022-06-02 07:40:04

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/17/21 Saturday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/06/02 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 238.7 Sol Number: 467  Change in degrees is +.6 Julian date is: 0036467
Solar Longitude: 238.1 Sol Number: 466  Change in degrees is +.7 Julian date is: 0036466
---
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
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:   207,032,383 km [26.5 km/s] Difference is -42040 <= -1752 km/hour at 8.0 on 06/02 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,074,423 km [26.4 km/s] Difference is -44146 <= -1839 km/hour at 8.0 on 06/01 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,118,569 km [26.4 km/s] Difference is -46242 <= -1927 km/hour at 8.0 on 05/31 (time 8:00)
---

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

---

Next up: The path is surrounded by galaxies today. An asterism of two stars is just above the path, 18 hours out ... TYC 3-717-1 Mg 10.67 RA 00h 26m 49.2s
Upper PGC 1175021 RA 00h 22m 47.3s / Lower PGC 1168182 RA 00h 23m 33.3s - Day 1 1168181 is still visible in lower right of view

---

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

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

---

Earth Distance 2022/06/02 216,702,702  (decrease)
Earth Distance 2022/06/01 217,528,874  (decrease)
Earth Distance 2022/05/31 218,365,525  (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 12 and 13 minutes. Communications delay would be 24+ 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 2022/01/04 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 467 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
Month  17 extends from Sol 447 through 474. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 467 is Saturday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Offline

#1455 2022-06-03 06:41:34

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/17/22 Sunday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/06/03 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 239.3 Sol Number: 468  Change in degrees is +.6 Julian date is: 0036468
Solar Longitude: 238.7 Sol Number: 467  Change in degrees is +.6 Julian date is: 0036467
---
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
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:   206,992,455 km [26.5 km/s] Difference is -39928 <= -1664 km/hour at 8.0 on 06/03 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,032,383 km [26.5 km/s] Difference is -42040 <= -1752 km/hour at 8.0 on 06/02 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,074,423 km [26.4 km/s] Difference is -44146 <= -1839 km/hour at 8.0 on 06/01 (time 8:00)
---

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

---

Next up: Galaxy PTC 1188594 RA 00h 28m 58.8s in path Day 0 about 11 hours ahead
TYC 3-717-1 Mg 10.67 RA 00h 26m 49.2s - Day 1 about 6 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 2022/06/03 215,931,716  (decrease)
Earth Distance 2022/06/02 216,702,702  (decrease)
Earth Distance 2022/06/01 217,528,874  (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 12 and 13 minutes. Communications delay would be 24+ 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 2022/01/04 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 468 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
Month  17 extends from Sol 447 through 474. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 468 is Sunday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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

#1456 2022-06-04 06:16:23

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/17/23 Monday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/06/04 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

One Day Note: The Solar Longitude reached 240.0 degrees, but the Astronomical month did not increment. One possible explanation is that
the longitude may have reached a point slightly less than 240, but the display was rounded upward. It seems likely the Astronomical month
will increment over the next 24 Earth hours.

Solar Longitude: 240.0 Sol Number: 469  Change in degrees is +.7 Julian date is: 0036469
Solar Longitude: 239.3 Sol Number: 468  Change in degrees is +.6 Julian date is: 0036468
---
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
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:   206,954,640 km [26.5 km/s] Difference is -37815 <= -1576 km/hour at 8.0 on 06/04 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,992,455 km [26.5 km/s] Difference is -39928 <= -1664 km/hour at 8.0 on 06/03 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,032,383 km [26.5 km/s] Difference is -42040 <= -1752 km/hour at 8.0 on 06/02 (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: Six galaxies and four stars form a U shaped bowl above the path, and about 9 hours ahead. Bottom galaxy is: PGC 1196913 RA 00h 31m 33.9s
: Galaxy PTC 1188594 RA 00h 28m 58.8s in path Day 0 about 11 hours ahead - Day 1 about 13 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 2022/06/04 215,128,906  (decrease)
Earth Distance 2022/06/03 215,931,716  (decrease)
Earth Distance 2022/06/02 216,702,702  (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 12 and 13 minutes. Communications delay would be 24+ 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 2022/01/04 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 469 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
Month  17 extends from Sol 447 through 474. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 469 is Monday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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

#1457 2022-06-05 06:22:35

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/17/24 Tuesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/06/05 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 240.6 Sol Number: 470  Change in degrees is +.6 Julian date is: 0036470
Solar Longitude: 240.0 Sol Number: 469  Change in degrees is +.7 Julian date is: 0036469
---
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
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:   206,918,966 km [26.5 km/s] Difference is -35674 <= -1486 km/hour at 8.0 on 06/05 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,954,640 km [26.5 km/s] Difference is -37815 <= -1576 km/hour at 8.0 on 06/04 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,992,455 km [26.5 km/s] Difference is -39928 <= -1664 km/hour at 8.0 on 06/03 (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: Note an abundance of galaxies in the view! In path: PGC 1206176 RA 00h 34m 39.3s below four others about 15 hours ahead
galaxy is: PGC 1196913 RA 00h 31m 33.9s - 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 2022/06/05 214,331,977  (decrease)
Earth Distance 2022/06/04 215,128,906  (decrease)
Earth Distance 2022/06/03 215,931,716  (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 12 and 13 minutes. Communications delay would be 24+ 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 2022/01/04 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 470 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
Month  17 extends from Sol 447 through 474. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 470 is Tuesday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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

#1458 2022-06-06 06:24:44

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/17/25 Wednesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/06/06 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 241.2 Sol Number: 471  Change in degrees is +.6 Julian date is: 0036471
Solar Longitude: 240.6 Sol Number: 470  Change in degrees is +.6 Julian date is: 0036470
---
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
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:   206,885,413 km [26.5 km/s] Difference is -33553 <= -1398 km/hour at 8.0 on 06/06 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,918,966 km [26.5 km/s] Difference is -35674 <= -1486 km/hour at 8.0 on 06/05 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,954,640 km [26.5 km/s] Difference is -37815 <= -1576 km/hour at 8.0 on 06/04 (time 8:00)

---

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

---

Next up: Star in path TYC 10-1033-1 Mg 10.24 RA 00h 37m 38.8s Day 0 about 15 hours ahead
Note large galaxy below path and about 10 hours ahead: NGC 173 Mg 13.00 RA 00h 37m 12.s4s -
: PGC 1206176 RA 00h 34m 39.3s below four others about 15 hours ahead - Day 1 about 10 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 2022/06/06 213,523,633  (decrease)
Earth Distance 2022/06/05 214,331,977  (decrease)
Earth Distance 2022/06/04 215,128,906  (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 12 and 13 minutes. Communications delay would be 24+ 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 2022/01/04 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 471 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
Month  17 extends from Sol 447 through 474. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 471 is Wednesday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Offline

#1459 2022-06-07 06:26:56

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/17/26 Thursday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/06/07 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 241.9 Sol Number: 472  Change in degrees is +.7 Julian date is: 0036472
Solar Longitude: 241.2 Sol Number: 471  Change in degrees is +.6 Julian date is: 0036471
---
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
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:   206,853,990 km [26.5 km/s] Difference is -31423 <= -1309 km/hour at 8.0 on 06/07 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,885,413 km [26.5 km/s] Difference is -33553 <= -1398 km/hour at 8.0 on 06/06 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,918,966 km [26.5 km/s] Difference is -35674 <= -1486 km/hour at 8.0 on 06/05 (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 at 9 hours ahead on Day 1 RA 00h 39m 27.9s PGC 1224672
Next up: Star in path TYC 10-1033-1 Mg 10.24 RA 00h 37m 38.8s Day 0 about 15 hours ahead - Day 1 about 9 hours behind
Note large galaxy below path and about 10 hours ahead: NGC 173 Mg 13.00 RA 00h 37m 12.s4s - Still Visible Day 1 at lower right of view

---

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

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

---

Earth Distance 2022/06/07 212,726,677  (decrease)
Earth Distance 2022/06/06 213,523,633  (decrease)
Earth Distance 2022/06/05 214,331,977  (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 12 and 13 minutes. Communications delay would be 24+ 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 2022/01/04 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 472 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
Month  17 extends from Sol 447 through 474. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 472 is Thursday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Offline

#1460 2022-06-08 07:11:14

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/17/27 Friday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/06/08 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 242.5 Sol Number: 473  Change in degrees is +.6 Julian date is: 0036473
Solar Longitude: 241.9 Sol Number: 472  Change in degrees is +.7 Julian date is: 0036472
---
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
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:   206,824,712 km [26.5 km/s] Difference is -29278 <= -1220 km/hour at 8.0 on 06/08 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,853,990 km [26.5 km/s] Difference is -31423 <= -1309 km/hour at 8.0 on 06/07 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,885,413 km [26.5 km/s] Difference is -33553 <= -1398 km/hour at 8.0 on 06/06 (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: Galaxy above path about 12 hours ahead RA 00h 42m 34.3s Mg 15.80 on Day 0
Galaxy above path at 9 hours ahead on Day 1 RA 00h 39m 27.9s PGC 1224672  - Day 1 Off the screen to the right

---

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

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

---

Earth Distance 2022/06/08 211,901,943  (decrease)
Earth Distance 2022/06/07 212,726,677  (decrease)
Earth Distance 2022/06/06 213,523,633  (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 2022/01/04 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 473 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
Month  17 extends from Sol 447 through 474. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 473 is Friday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Offline

#1461 2022-06-09 06:39:32

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/17/28 Saturday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
One Day Note: Today is the last day of Month 17

Today on Earth: 2022/06/09 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 243.1 Sol Number: 474  Change in degrees is +.6 Julian date is: 0036474
Solar Longitude: 242.5 Sol Number: 473  Change in degrees is +.6 Julian date is: 0036473
---
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
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:   206,797,576 km [26.5 km/s] Difference is -27136 <= -1131 km/hour at 8.0 on 06/09 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,824,712 km [26.5 km/s] Difference is -29278 <= -1220 km/hour at 8.0 on 06/08 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,853,990 km [26.5 km/s] Difference is -31423 <= -1309 km/hour at 8.0 on 06/07 (time 8:00)

---

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

---

Next up: Two galaxies across path: PGC 12424416 RA 00h 45m 40.2s and PGC 1241694 - Day 0 about 12 hours ahead
: Galaxy above path about 12 hours ahead RA 00h 42m 32.3s Mg 15.80 on Day 0 - Day 1 right on target - still visible 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 2022/06/09 211,120,984  (decrease)
Earth Distance 2022/06/08 211,901,943  (decrease)
Earth Distance 2022/06/07 212,726,677  (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 2022/01/04 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 474 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
Month  17 extends from Sol 447 through 474. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 474 is Saturday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Offline

#1462 2022-06-10 07:04:23

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/18/01 Sunday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
One Day Note: Today is the first day of Month 18

Today on Earth: 2022/06/10 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 243.8 Sol Number: 475  Change in degrees is +.7 Julian date is: 0036475
Solar Longitude: 243.1 Sol Number: 474  Change in degrees is +.6 Julian date is: 0036474
---
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
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:   206,772,584 km [26.5 km/s] Difference is -24992 <= -1041 km/hour at 8.0 on 06/10 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,797,576 km [26.5 km/s] Difference is -27136 <= -1131 km/hour at 8.0 on 06/09 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,824,712 km [26.5 km/s] Difference is -29278 <= -1220 km/hour at 8.0 on 06/08 (time 8:00)

---

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

---

Next up: galaxy just above path and 9 hours ahead on Day 0 - PGC 1248017 RA 00h 47m 44.4s
: PGC 12424416 RA 00h 45m 40.2s and PGC 1241694 - Day 0 about 12 hours ahead - Day 1 exactly 9 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 2022/06/10 210,307,777  (decrease)
Earth Distance 2022/06/09 211,120,984  (decrease)
Earth Distance 2022/06/08 211,901,943  (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 2022/01/04 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 475 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
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 475 is Sunday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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

#1463 2022-06-11 06:40:23

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/18/02 Monday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---

Today on Earth: 2022/06/11 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 244.4 Sol Number: 476  Change in degrees is +.6 Julian date is: 0036476
Solar Longitude: 243.8 Sol Number: 475  Change in degrees is +.7 Julian date is: 0036475
---
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
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:   206,749,745 km [26.5 km/s] Difference is -22839 <= -0952 km/hour at 8.0 on 06/11 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,772,584 km [26.5 km/s] Difference is -24992 <= -1041 km/hour at 8.0 on 06/10 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,797,576 km [26.5 km/s] Difference is -27136 <= -1131 km/hour at 8.0 on 06/09 (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: A line of stars about 12 hours ahead on Day 0 TYC 15-1176-1 Mg 9.53 RA 00h 51m 02.4s
: galaxy just above path and 9 hours ahead on Day 0 - PGC 1248017 RA 00h 47m 44.4s  - Day 1 out of view

---

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

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

---

Earth Distance 2022/06/11 209,525,260  (decrease)
Earth Distance 2022/06/10 210,307,777  (decrease)
Earth Distance 2022/06/09 211,120,984  (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 2022/01/04 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 476 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
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 476 is Monday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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

#1464 2022-06-12 08:14:49

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/18/03 Tuesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---

Today on Earth: 2022/06/12 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 245.0 Sol Number: 477  Change in degrees is +.6 Julian date is: 0036477
Solar Longitude: 244.4 Sol Number: 476  Change in degrees is +.6 Julian date is: 0036476
---
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
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:   206,729,061 km [26.5 km/s] Difference is -20684 <= -0862 km/hour at 8.0 on 06/12 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,749,745 km [26.5 km/s] Difference is -22839 <= -0952 km/hour at 8.0 on 06/11 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,772,584 km [26.5 km/s] Difference is -24992 <= -1041 km/hour at 8.0 on 06/10 (time 8:00)

---

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

---

Next up: Galaxy PGC 1260316 RA 00h 52m 57.8s Day 0 above path and about 10 hours ahead
Next up: Star TYC 15-942-1 Mg 9.84 RA 00h 53m 49.1s below path Day 0 about 12 hours ahead
Next up: HIP 4123 is above the path: Mg 8.97 RA 00h 52m 50.5s about 7 hours ahead ... unlikely to be visibile tomorrow
Day 0 TYC 15-1176-1 Mg 9.53 RA 00h 51m 02.4s - Day 1 right on the money! about 12 hours past and just below path. Note HIP 3992 below

---

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 2022/06/12 208,675,912  (decrease)
Earth Distance 2022/06/11 209,525,260  (decrease)
Earth Distance 2022/06/10 210,307,777  (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 2022/01/04 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 477 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
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 477 is Tuesday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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

#1465 2022-06-13 07:48:12

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

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

Today on Earth: 2022/06/13 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 245.7 Sol Number: 478  Change in degrees is +.7 Julian date is: 0036478
Solar Longitude: 245.0 Sol Number: 477  Change in degrees is +.6 Julian date is: 0036477
---
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
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:   206,709,803 km [26.5 km/s] Difference is -19258 <= -0770 km/hour at 9.0 on 06/13 (time 9:00)
Distance: Mars >> Sun per theskylive.com:   206,729,061 km [26.5 km/s] Difference is -20684 <= -0862 km/hour at 8.0 on 06/12 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,749,745 km [26.5 km/s] Difference is -22839 <= -0952 km/hour at 8.0 on 06/11 (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 in the 12 hours ahead region ... RA 00h 56m 26.2s - The path heads up and left into the information banner
: Galaxy PGC 1260316 RA 00h 52m 57.8s Day 0 above path and about 10 hours ahead - Day 1 about 15 hours past
: Star TYC 15-942-1 Mg 9.84 RA 00h 53m 49.1s below path Day 0 about 12 hours ahead - Day 1 about 12 hours past Mars
: HIP 4123 is above the path: Mg 8.97 RA 00h 52m 50.5s about 7 hours ahead ... unlikely to be visibile tomorrow - Day 1 still in view at far right

---

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

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

---

Earth Distance 2022/06/13 207,895,222  (decrease)
Earth Distance 2022/06/12 208,675,912  (decrease)
Earth Distance 2022/06/11 209,525,260  (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 2022/01/04 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 478 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
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 478 is Wednesday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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

#1466 2022-06-14 06:22:41

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

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

Today on Earth: 2022/06/14 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 246.3 Sol Number: 479  Change in degrees is +.6 Julian date is: 0036479
Solar Longitude: 245.7 Sol Number: 478  Change in degrees is +.7 Julian date is: 0036478
---
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
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:   206,694,162 km [26.5 km/s] Difference is -15641 <= -0680 km/hour at 8.0 on 06/14 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,709,803 km [26.5 km/s] Difference is -19258 <= -0770 km/hour at 9.0 on 06/13 (time 9:00)
Distance: Mars >> Sun per theskylive.com:   206,729,061 km [26.5 km/s] Difference is -20684 <= -0862 km/hour at 8.0 on 06/12 (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: HIP 4557 above path on Day 0 at about 8 hours before Mars Mg 7.95 RA 00h 58m 18.8s
Next up: HIP 4582 Mg 7.53 Day 0 below path RA 00h 58m 42.4s 9 hours ahead
RA 00h 56m 26.2s - The path heads up and left into the information banner  - Day 1 this point is right at 9 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 2022/06/14 207,148,026  (decrease)
Earth Distance 2022/06/13 207,895,222  (decrease)
Earth Distance 2022/06/12 208,675,912  (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 2022/01/04 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 479 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
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 479 is Thursday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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/***
   ***Insights 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

#1467 2022-06-15 06:38:24

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/18/06 Friday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---

Today on Earth: 2022/06/15 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 246.9 Sol Number: 480  Change in degrees is +.6 Julian date is: 0036480
Solar Longitude: 246.3 Sol Number: 479  Change in degrees is +.6 Julian date is: 0036479
---
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
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:   206,679,955 km [26.5 km/s] Difference is -14207 <= -592 km/hour at 8.0 on 06/15 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,694,162 km [26.5 km/s] Difference is -15641 <= -680 km/hour at 8.0 on 06/14 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,709,803 km [26.5 km/s] Difference is -19258 <= -770 km/hour at 9.0 on 06/13 (time 9:00)

---

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: above path star TYC 22-586-1 Mg 12.06 RA 01h 01m 13.8s Day 0 about 12 hours ahead
Next up: below path star TYC 22-601-1 Mg 9.91 RA 01h 02m 15.1s Day 0 about 18 hours ahead
: HIP 4557 above path on Day 0 at about 8 hours before Mars Mg 7.95 RA 00h 58m 18.8s  - Day 1 out of sight on right of view
: HIP 4582 Mg 7.53 Day 0 below path RA 00h 58m 42.4s 9 hours ahead - Day 1 Still visible in lower right

---

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

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

---

Earth Distance 2022/06/15 206,351,592  (decrease)
Earth Distance 2022/06/14 207,148,026  (decrease)
Earth Distance 2022/06/13 207,895,222  (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 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 2022/01/04 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 480 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
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 480 is Friday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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

#1468 2022-06-16 06:35:31

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/18/07 Saturday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---

Today on Earth: 2022/06/16 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 247.6 Sol Number: 481  Change in degrees is +.7 Julian date is: 0036481
Solar Longitude: 246.9 Sol Number: 480  Change in degrees is +.6 Julian date is: 0036480
---
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
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:   206,667,913 km [26.5 km/s] Difference is -12042 <= -502 km/hour at 8.0 on 06/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,679,955 km [26.5 km/s] Difference is -14207 <= -592 km/hour at 8.0 on 06/15 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,694,162 km [26.5 km/s] Difference is -15641 <= -680 km/hour at 8.0 on 06/14 (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 just above path at RA 01h 04m 33.2s TYC label is obscured by page data window - Day 0 about 16 hours ahead
Next up: Above path: HIP 4941 Mg 9.53 RA 01h 03m 24.8s Day 0 about 7 hours ahead
above path star TYC 22-586-1 Mg 12.06 RA 01h 01m 13.8s Day 0 about 12 hours ahead - Day 1 about 12 hours behind
below path star TYC 22-601-1 Mg 9.91 RA 01h 02m 15.1s Day 0 about 18 hours ahead  - Day 1 about 7 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 2022/06/16 205,554,379  (decrease)
Earth Distance 2022/06/15 206,351,592  (decrease)
Earth Distance 2022/06/14 207,148,026  (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 2022/01/04 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 481 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
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 481 is Saturday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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

#1469 2022-06-17 06:53:58

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/18/08 Sunday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---

Today on Earth: 2022/06/17 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 248.2 Sol Number: 482  Change in degrees is +.6 Julian date is: 0036482
Solar Longitude: 247.6 Sol Number: 481  Change in degrees is +.7 Julian date is: 0036481
---
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
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:   206,658,035 km [26.5 km/s] Difference is -09878 <= -412 km/hour at 8.0 on 06/17 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,667,913 km [26.5 km/s] Difference is -12042 <= -502 km/hour at 8.0 on 06/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,679,955 km [26.5 km/s] Difference is -14207 <= -592 km/hour at 8.0 on 06/15 (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: Unlabelled triplet just above path and about 12 hours ahead RA 001 06m 48.8s
Next up: Note bright paring of HIP and TYC below Mars - these will be out of view tomorrow
star just above path at RA 01h 04m 33.2s TYC label is obscured by page data window - Day 0 about 16 hours ahead - TYC 22-741-1 Day 1 9 hours past
Above path: HIP 4941 Mg 9.53 RA 01h 03m 24.8s Day 0 about 7 hours ahead - Day 1 still visible at far right about 18 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 2022/06/17 204,751,666  (decrease)
Earth Distance 2022/06/16 205,554,379  (decrease)
Earth Distance 2022/06/15 206,351,592  (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 2022/01/04 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 482 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
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 482 is Sunday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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

#1470 2022-06-18 06:55:00

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/18/09 Monday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---

Today on Earth: 2022/06/18 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 248.8 Sol Number: 483  Change in degrees is +.6 Julian date is: 0036483
Solar Longitude: 248.2 Sol Number: 482  Change in degrees is +.6 Julian date is: 0036482
---
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
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:   206,650,324 km [26.5 km/s] Difference is -07711 <= -321 km/hour at 8.0 on 06/18 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,658,035 km [26.5 km/s] Difference is -09878 <= -412 km/hour at 8.0 on 06/17 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,667,913 km [26.5 km/s] Difference is -12042 <= -502 km/hour at 8.0 on 06/16 (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 1285217 RA 01h 09m 21.4s Day 0 about 12 hours ahead
Next up: Star in path: TYC 25-1274-1 Mg 10.24 RA 1h 9m 36.3s Day 0 about 12 hours ahead
Unlabelled triplet just above path and about 12 hours ahead RA 001 06m 48.8s - Day 1 Still visible at far lower right - 12 hours ahead is the key for survival

---

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 2022/06/18 203,959,333  (decrease)
Earth Distance 2022/06/17 204,751,666  (decrease)
Earth Distance 2022/06/16 205,554,379  (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 483 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
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 483 is Monday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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

#1471 2022-06-19 06:23:00

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/18/10 Tuesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---

Today on Earth: 2022/06/19 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 249.5 Sol Number: 484  Change in degrees is +.7 Julian date is: 0036484
Solar Longitude: 248.8 Sol Number: 483  Change in degrees is +.6 Julian date is: 0036483
---
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
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:   206,644,784 km [26.5 km/s] Difference is -05540 <= -231 km/hour at 8.0 on 06/19 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,650,324 km [26.5 km/s] Difference is -07711 <= -321 km/hour at 8.0 on 06/18 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,658,035 km [26.5 km/s] Difference is -09878 <= -412 km/hour at 8.0 on 06/17 (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 above path TYC 26-1047-1 RA 01h 12m 33.3s Mg 11.46 Day 0 about 14 hours ahead
Next up: Star in path TYC 26-576-1 Mg 11.64 RA 01h 12m 11.6s Day 0 about 11 hours ahead
Galaxy above path 1285217 RA 01h 09m 21.4s Day 0 about 12 hours ahead  - Day 1 about 12 hours behind
Star in path: TYC 25-1274-1 Mg 10.24 RA 1h 9m 36.3s Day 0 about 12 hours ahead - Day 1 about 12 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 2022/06/19 203,185,828  (decrease)
Earth Distance 2022/06/18 203,959,333  (decrease)
Earth Distance 2022/06/17 204,751,666  (decrease)

---

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 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 484 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 448
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 484 is Tuesday  in the Proposed Business calendar for Mars.  Sol 448 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 in May 2022 (on:14th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in June 20, 2022 (on 20th >> 21st) 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

#1472 2022-06-20 06:28:55

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/18/10 Tuesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
One Day Note: Today is a skip day on Mars
---

Today on Earth: 2022/06/20 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 250.1 Sol Number: 484  Change in degrees is +.6 Julian date is: 0036484 <<== Skip day
Solar Longitude: 249.5 Sol Number: 484  Change in degrees is +.7 Julian date is: 0036484
---
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
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:   206,641,411 km [26.5 km/s] Difference is -03373 <= -141 km/hour at 8.0 on 06/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,644,784 km [26.5 km/s] Difference is -05540 <= -231 km/hour at 8.0 on 06/19 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,650,324 km [26.5 km/s] Difference is -07711 <= -321 km/hour at 8.0 on 06/18 (time 8:00)

---

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

---

Next up: Unlabeled star in path: Day 0 12 hours ahead RA 01h 15m 14.4s Asterism Reverse check mark
Star above path TYC 26-1047-1 RA 01h 12m 33.3s Mg 11.46 Day 0 about 14 hours ahead - Day 1 about 9 hours ahead
Star in path TYC 26-576-1 Mg 11.64 RA 01h 12m 11.6s Day 0 about 11 hours ahead - Day 1 about 12 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 2022/06/20 202,391,737  (decrease)
Earth Distance 2022/06/19 203,185,828  (decrease)
Earth Distance 2022/06/18 203,959,333  (decrease)

---

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 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 484 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 484 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 in June 2022 (on:20th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in August ??, 2022 (on ??th >> ??st) 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

#1473 2022-06-21 07:33:03

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/18/11 Wednesday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

--- SearchTerm:Perihelion Sol 485

Today on Earth: 2022/06/21 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 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: 250.7 Sol Number: 485  Change in degrees is +.6 Julian date is: 0036485
Solar Longitude: 250.1 Sol Number: 484  Change in degrees is +.6 Julian date is: 0036484 <<== Skip day
---
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 2020/06/??
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:   206,640,210 km [26.5 km/s] Difference is -01201 <= -050 km/hour at 8.0 on 06/21 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,641,411 km [26.5 km/s] Difference is -03373 <= -141 km/hour at 8.0 on 06/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,644,784 km [26.5 km/s] Difference is -05540 <= -231 km/hour at 8.0 on 06/19 (time 8:00)

---

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

---

Next up: Three galaxies and two stars in a line: lead: Galaxy PGC 1298616 RA 01h 17m 56.7s Day 0 about 13 hours ahead
Unlabeled star in path: Day 0 12 hours ahead RA 01h 15m 14.4s Asterism Reverse check mark - Day 1 about 10 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 2022/06/21 201,566,466  (decrease)
Earth Distance 2022/06/20 202,391,737  (decrease)
Earth Distance 2022/06/19 203,185,828  (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 485 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 485 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

#1474 2022-06-22 06:37:40

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/18/12 Thursday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

---

Today on Earth: 2022/06/22 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: 251.4 Sol Number: 486  Change in degrees is +.7 Julian date is: 0036486
Solar Longitude: 250.7 Sol Number: 485  Change in degrees is +.6 Julian date is: 0036485
---
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:   206,641,178 km [26.5 km/s] Difference is +00968 <= +40 km/hour at 8.0 on 06/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,640,210 km [26.5 km/s] Difference is -01201 <= -050 km/hour at 8.0 on 06/21 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   206,641,411 km [26.5 km/s] Difference is -03373 <= -141 km/hour at 8.0 on 06/20 (time 8:00)

---

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

---

Next up: Galaxy UGC 882 RA 01h 20m 54.3s Mg 15.20 in path Day 0 about 14 hours ahead
Three galaxies and two stars in a line: lead: Galaxy PGC 1298616 RA 01h 17m 56.7s Day 0 about 13 hours ahead -Day 1 still visible at right of view

---

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

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

---

Earth Distance 2022/06/22 200,804,873  (decrease)
Earth Distance 2022/06/21 201,566,466  (decrease)
Earth Distance 2022/06/20 202,391,737  (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 486 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 486 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

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#1475 2022-06-23 07:33:14

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,856

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

Today on Mars: 0036/18/13 Friday <<-- Days of the week offset 6 with Earth.  (count from Mars to Earth (updated 2022/05/04))

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Today on Earth: 2022/06/23 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: 252.0 Sol Number: 487  Change in degrees is +.6 Julian date is: 0036487
Solar Longitude: 251.4 Sol Number: 486  Change in degrees is +.7 Julian date is: 0036486
---
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:   206,644,315 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)
Distance: Mars >> Sun per theskylive.com:   206,640,210 km [26.5 km/s] Difference is -01201 <= -050 km/hour at 8.0 on 06/21 (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: Galaxy in path: PGC 1307471 RA 01h 23m 12.7s Day 0 about 14 hours ahead
UGC 882 RA 01h 20m 54.3s Mg 15.20 in path Day 0 about 14 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 2022/06/23 199,981,354  (decrease)
Earth Distance 2022/06/22 200,804,873  (decrease)
Earth Distance 2022/06/21 201,566,466  (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 487 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 487 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

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