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#1426 2022-05-05 06:01:53

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/16/22 Sunday <<-- Days of the week offset 4 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/05 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: 221.1 Sol Number: 440  Change in degrees is +.6 Julian date is: 0036440
Solar Longitude: 220.5 Sol Number: 439  Change in degrees is +.6 Julian date is: 0036439
---
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:   208,983,585 km [26.2 km/s] Difference is -093707 <= -4074 km/hour at 7.0 on 05/05 (time 7:00)
Distance: Mars >> Sun per theskylive.com:   209,077,292 km [26.2 km/s] Difference is -095395 <= -4148 km/hour at 8.0 on 05/04 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,172,687 km [26.2 km/s] Difference is -096632 <= -4220 km/hour at 9.0 on 05/03 (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: A galaxy directly in the path: PGC 1023920 RA 23h 09m 24.9s Day 0 about 18 hours ahead
TYC 5248-741-1 Mg 11.37 RA 23h 7m 13.3s Day 0 at least 15 hours ahead. - Day 1 about 4.5 hours behind Mars

Mars itself is showing location of: RA 23h 04m 54.1s In the next 24 hours of Earth time, Mars will advance through 23h 7m 13.3s to: 23h 07m 29.3s
Thinking out loud here: if an orbit is 668 Earth Days, then each Earth day Mars should advance 360/668 degrees, or .5389. The actual rate varies (ellipse)
However, Earth is moving simultaneously, so where Mars appears against the celestial background will vary over the Mars year.

---

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 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/05/05 239,857,555  (decrease)
Earth Distance 2022/05/04 240,633,666  (decrease)
Earth Distance 2022/05/03 241,505,133  (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 13 and 14 minutes. Communications delay would be 26+ 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 440 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. 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 440 is Sunday  in the Proposed Business calendar for Mars.  Sol 411 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 April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) 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 16 of 24: Fourth month of the 3rd Quarter and Second Half

Online

#1427 2022-05-06 06:03:28

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/16/23 Monday <<-- Days of the week offset 4 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/06 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: 221.8 Sol Number: 441  Change in degrees is +.7 Julian date is: 0036441
Solar Longitude: 221.1 Sol Number: 440  Change in degrees is +.6 Julian date is: 0036440
---
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:   208,887,603 km [26.2 km/s] Difference is -095982 <= -3999 km/hour at 7.0 on 05/06 (time 7:00)
Distance: Mars >> Sun per theskylive.com:   208,983,585 km [26.2 km/s] Difference is -093707 <= -4074 km/hour at 7.0 on 05/05 (time 7:00)
Distance: Mars >> Sun per theskylive.com:   209,077,292 km [26.2 km/s] Difference is -095395 <= -4148 km/hour at 8.0 on 05/04 (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: Galaxy just under path: PGC 1026970 RA 23h 12m 03.0s Day 0 about 14 hours ahead
PGC 1023920 RA 23h 09m 24.9s Day 0 about 18 hours ahead - Day 1 about 8 hours past - still very close to path

---

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

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

Earth Distance 2022/05/06 239,002,000  (decrease)
Earth Distance 2022/05/05 239,857,555  (decrease)
Earth Distance 2022/05/04 240,633,666  (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 13 and 14 minutes. Communications delay would be 26+ 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 441 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. 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 441 is Monday  in the Proposed Business calendar for Mars.  Sol 411 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 April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) 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 16 of 24: Fourth month of the 3rd Quarter and Second Half

Online

#1428 2022-05-07 06:43:54

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/16/24 Tuesday <<-- Days of the week offset 4 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/07 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

Solar Longitude: 222.4 Sol Number: 442  Change in degrees is +.6 Julian date is: 0036442
Solar Longitude: 221.8 Sol Number: 441  Change in degrees is +.7 Julian date is: 0036441
---
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:   208,789,190 km [26.2 km/s] Difference is -098413 <= -3921 km/hour at 8.1 on 05/07 (time 8:06)
Distance: Mars >> Sun per theskylive.com:   208,887,603 km [26.2 km/s] Difference is -095982 <= -3999 km/hour at 7.0 on 05/06 (time 7:00)
Distance: Mars >> Sun per theskylive.com:   208,983,585 km [26.2 km/s] Difference is -093707 <= -4074 km/hour at 7.0 on 05/05 (time 7:00)
---
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 5249-1089-1 Mg 12.14 RA 23h 15m 29.7s  Day 0 - about 18 hours ahead
PGC 1026970 RA 23h 12m 03.0s Day 0 about 14 hours ahead - Day 1 Still in view but just barely - 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 2022/05/07 238,135,357  (decrease)
Earth Distance 2022/05/06 239,002,000  (decrease)
Earth Distance 2022/05/05 239,857,555  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198, 12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 13 and 14 minutes. Communications delay would be 26+ 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 442 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. 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 442 is Tuesday  in the Proposed Business calendar for Mars.  Sol 411 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 April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) 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 16 of 24: Fourth month of the 3rd Quarter and Second Half

Online

#1429 2022-05-08 07:15:44

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/16/25 Wednesday <<-- Days of the week offset 4 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/08 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: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 223.0 Sol Number: 443  Change in degrees is +.6 Julian date is: 0036443
Solar Longitude: 222.4 Sol Number: 442  Change in degrees is +.6 Julian date is: 0036442
---
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:   208,697,023 km [26.3 km/s] Difference is -092167 <= -3840 km/hour at 8.1 on 05/08 (time 8:06)
Distance: Mars >> Sun per theskylive.com:   208,789,190 km [26.2 km/s] Difference is -098413 <= -3921 km/hour at 8.1 on 05/07 (time 8:06)
Distance: Mars >> Sun per theskylive.com:   208,887,603 km [26.2 km/s] Difference is -095982 <= -3999 km/hour at 7.0 on 05/06 (time 7:00)
---
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 "square" of stars below path Day 0 about 10-12 hours ahead: trail is: TYC 5249-804-1 RA 23h 17m 58.3s
TYC 5249-1089-1 Mg 12.14 RA 23h 15m 29.7s  Day 0 - about 18 hours ahead - 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 2022/05/08 237,271,625  (decrease)
Earth Distance 2022/05/07 238,135,357  (decrease)
Earth Distance 2022/05/06 239,002,000  (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 13 and 14 minutes. Communications delay would be 26+ 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 443 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. 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 443 is Wednesday  in the Proposed Business calendar for Mars.  Sol 411 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 April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) 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 16 of 24: Fourth month of the 3rd Quarter and Second Half

Online

#1430 2022-05-09 07:13:31

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/16/26 Thursday <<-- Days of the week offset 4 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/09 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: 223.6 Sol Number: 444  Change in degrees is +.6 Julian date is: 0036444
Solar Longitude: 223.0 Sol Number: 443  Change in degrees is +.6 Julian date is: 0036443
---
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:   208,607,068 km [26.3 km/s] Difference is -089955 <= -3764 km/hour at 8.0 on 05/09 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,697,023 km [26.3 km/s] Difference is -092167 <= -3840 km/hour at 8.1 on 05/08 (time 8:06)
Distance: Mars >> Sun per theskylive.com:   208,789,190 km [26.2 km/s] Difference is -098413 <= -3921 km/hour at 8.1 on 05/07 (time 8:06)

---

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

Next up: An artifact of the database: vertical streak- cuts path at RA 23h 20m 24.5s about 15 hours ahead
Day 0 about 10-12 hours ahead: trail is: TYC 5249-804-1 RA 23h 17m 58.3s  - Day 1 still visible near bottom of view 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 2022/05/09 236,431,444  (decrease)
Earth Distance 2022/05/08 237,271,625  (decrease)
Earth Distance 2022/05/07 238,135,357  (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 13 and 14 minutes. Communications delay would be 26+ 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 444 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. 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 444 is Thursday  in the Proposed Business calendar for Mars.  Sol 411 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 April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) 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 16 of 24: Fourth month of the 3rd Quarter and Second Half

Online

#1431 2022-05-10 09:17:45

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/16/27 Friday <<-- Days of the week offset 4 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/10 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One Day Note: Skip Day is close: Estimated May 13 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: 224.2 Sol Number: 445  Change in degrees is +.6 Julian date is: 0036445
Solar Longitude: 223.6 Sol Number: 444  Change in degrees is +.6 Julian date is: 0036444
---
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:   208,518,687 km [26.3 km/s] Difference is -088381 <= -3684 km/hour at 8.0 on 05/10 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,607,068 km [26.3 km/s] Difference is -089955 <= -3764 km/hour at 8.0 on 05/09 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,697,023 km [26.3 km/s] Difference is -092167 <= -3840 km/hour at 8.1 on 05/08 (time 8:06)

---

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

Next up: A star directly in path: TYC 5250-18-1 Mg 11.82 RA 23h 23m 43.9s Day 0 about 15 hours ahead
An artifact of the database: vertical streak- cuts path at RA 23h 20m 24.5s about 15 hours ahead - Day 1 at far right of view

---

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

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

Earth Distance 2022/05/09 235,527,777  (decrease)
Earth Distance 2022/05/09 236,431,444  (decrease)
Earth Distance 2022/05/08 237,271,625  (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 13 and 14 minutes. Communications delay would be 26+ 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 445 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. 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 445 is Friday  in the Proposed Business calendar for Mars.  Sol 411 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 April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) 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 16 of 24: Fourth month of the 3rd Quarter and Second Half

Online

#1432 2022-05-11 06:39:01

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

One Day note: This is the last day of Month 16

Today on Mars: 0036/16/28 Saturday <<-- Days of the week offset 4 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/11 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One Day Note: Skip Day is close: Estimated May 13 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: 224.7 Sol Number: 446  Change in degrees is +.7 Julian date is: 0036446
Solar Longitude: 224.2 Sol Number: 445  Change in degrees is +.6 Julian date is: 0036445
---
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:   208,432,187 km [26.3 km/s] Difference is -86500 <= -3604 km/hour at 8.0 on 05/11 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,518,687 km [26.3 km/s] Difference is -88381 <= -3684 km/hour at 8.0 on 05/10 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,607,068 km [26.3 km/s] Difference is -89955 <= -3764 km/hour at 8.0 on 05/09 (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 galaxy above path: PGC 1046164 RA 23h 25m 41.7s about 14 hours ahead
TYC 5250-18-1 Mg 11.82 RA 23h 23m 43.9s Day 0 about 15 hours ahead - Day 1 about 5 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 2022/05/11 234,775,980  (decrease)
Earth Distance 2022/05/10 235,527,777  (decrease)
Earth Distance 2022/05/09 236,431,444  (decrease)

---

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198, 12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 13 and 14 minutes. Communications delay would be 26+ 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 446 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. 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 446 is Saturday  in the Proposed Business calendar for Mars.  Sol 411 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 April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) 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 16 of 24: Fourth month of the 3rd Quarter and Second Half

Online

#1433 2022-05-12 06:24:52

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

One Day note: This is the first day of Month 17

Today on Mars: 0036/17/01 Sunday <<-- Days of the week offset 4 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/12 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One Day Note: Skip Day is close: Estimated May 13 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: 225.5 Sol Number: 447  Change in degrees is +.6 Julian date is: 0036447
Solar Longitude: 224.9 Sol Number: 446  Change in degrees is +.7 Julian date is: 0036446
---
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:   208,347,250 km [26.3 km/s] Difference is -84937 <= -3524 km/hour at 8.1 on 05/11 (time 8:06)
Distance: Mars >> Sun per theskylive.com:   208,432,187 km [26.3 km/s] Difference is -86500 <= -3604 km/hour at 8.0 on 05/11 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,518,687 km [26.3 km/s] Difference is -88381 <= -3684 km/hour at 8.0 on 05/10 (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: Two stars just above path: Trailing TYC 5250-26-1 Mg 11.03 RA 23h 28m 23.2s about 10 hours ahead
Next up: A mini-Boomer at RA 23h 28m 44.5s below path and about 10 hours ahead
PGC 1046164 RA 23h 25m 41.7s about 14 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 2022/05/12 233,947,155  (decrease)
Earth Distance 2022/05/11 234,775,980  (decrease)
Earth Distance 2022/05/10 235,527,777  (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 13 and 14 minutes. Communications delay would be 26+ 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 447 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
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 447 is Sunday  in the Proposed Business calendar for Mars.  Sol 411 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 April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) 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

Online

#1434 2022-05-13 07:02:41

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/02 Monday <<-- Days of the week offset 4 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/13 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One Day Note: Skip Day is close: Estimated May 13 Earth Calendar <<== May 14 is the next candidate

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: 226.1Sol Number: 448  Change in degrees is +.6 Julian date is: 0036448
Solar Longitude: 225.5 Sol Number: 447  Change in degrees is +.6 Julian date is: 0036447
---
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:   208,264,936 km [26.3 km/s] Difference is -82314 <= -3444 km/hour at 8.0 on 05/12 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,347,250 km [26.3 km/s] Difference is -84937 <= -3524 km/hour at 8.1 on 05/11 (time 8:06)
Distance: Mars >> Sun per theskylive.com:   208,432,187 km [26.3 km/s] Difference is -86500 <= -3604 km/hour at 8.0 on 05/11 (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: a galaxy in path: PGC 1052233 RA 23h 31m 52.1s Day 0 about 14 hours ahead
Next up: A ** nicely defined ** galaxy viewed edge on: IC 1498 Mg 13.80 RA 23h 31m 53.5s Day 0 about 12 hours ahead
TYC 5250-26-1 Mg 11.03 RA 23h 28m 23.2s about 10 hours ahead - Day 1 still visible but just barely on far right of view at about 14 hours past
A mini-Boomer at RA 23h 28m 44.5s below path and about 10 hours ahead - out of sight on Day 1

---

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

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

Earth Distance 2022/05/13 233,092,171  (decrease)
Earth Distance 2022/05/12 233,947,155  (decrease)
Earth Distance 2022/05/11 234,775,980  (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 13 and 14 minutes. Communications delay would be 26+ 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 448 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
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 448 is Monday  in the Proposed Business calendar for Mars.  Sol 411 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 April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th >> 14th) 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

Online

#1435 2022-05-14 06:38:53

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/02 Monday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/14 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One Day Note: Skip Day is May 14 on 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: 226.7 Sol Number: 448  Change in degrees is +.6 Julian date is: 0036448
Solar Longitude: 226.1 Sol Number: 448  Change in degrees is +.6 Julian date is: 0036448
---
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:   208,184,205 km [26.3 km/s] Difference is -80731 <= -3364 km/hour at 8.0 on 05/14 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,264,936 km [26.3 km/s] Difference is -82314 <= -3444 km/hour at 8.0 on 05/13 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,347,250 km [26.3 km/s] Difference is -84937 <= -3524 km/hour at 8.1 on 05/12 (time 8:06)

---

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

Next up: A nicely defined galaxy viewed edge on: IC 5334 RA 23h 34m 36.4s Day 0 about 15 hours ahead
PGC 1052233 RA 23h 31m 52.1s Day 0 about 14 hours ahead - Day 1 right at 9 hour marker
IC 1498 Mg 13.80 RA 23h 31m 53.5s Day 0 about 12 hours ahead - Day 1 still visible at bottom of view - about 10 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 2022/05/14 232,278,377  (decrease)
Earth Distance 2022/05/13 233,092,171  (decrease)
Earth Distance 2022/05/12 233,947,155  (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 448 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 448 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Online

#1436 2022-05-15 06:40:51

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/03 Tuesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/15 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: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 227.4 Sol Number: 449  Change in degrees is +.7 Julian date is: 0036449
Solar Longitude: 226.7 Sol Number: 448  Change in degrees is +.6 Julian date is: 0036448
---
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:   208,105,448 km [26.3 km/s] Difference is -78757 <= -3282 km/hour at 8.0 on 05/15 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,184,205 km [26.3 km/s] Difference is -80731 <= -3364 km/hour at 8.0 on 05/14 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,264,936 km [26.3 km/s] Difference is -82314 <= -3444 km/hour at 8.0 on 05/13 (time 8:00)

---

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

Next up: Slim pickings ... Galaxy above path and about 7 hours ahead on Day 1 - PGC 1060212 RA 23h 36m 13.1s
IC 5334 RA 23h 34m 36.4s Day 0 about 15 hours ahead - Day 1 about 8 hours behind and square in the path

---

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

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

Earth Distance 2022/05/15 231,443,179  (decrease)
Earth Distance 2022/05/14 232,278,377  (decrease)
Earth Distance 2022/05/13 233,092,171  (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 449 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 449 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Online

#1437 2022-05-16 06:25:31

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/04 Wednesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/16 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: 228.0 Sol Number: 450  Change in degrees is +.6 Julian date is: 0036450
Solar Longitude: 227.4 Sol Number: 449  Change in degrees is +.7 Julian date is: 0036449
---
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:   208,028,640 km [26.3 km/s] Difference is -76808 <= -3200 km/hour at 8.0 on 05/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,105,448 km [26.3 km/s] Difference is -78757 <= -3282 km/hour at 8.0 on 05/15 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,184,205 km [26.3 km/s] Difference is -80731 <= -3364 km/hour at 8.0 on 05/14 (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: (Note abundance of galaxies in today's view) PGC 1064935 RA 23h 40m 15.7s in path and about 18 hours ahead on Day 0
PGC 1060212 RA 23h 36m 13.1s  - Day 1 off the screen on right

---

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

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

Earth Distance 2022/05/16 230,624,555  (decrease)
Earth Distance 2022/05/15 231,443,179  (decrease)
Earth Distance 2022/05/14 232,278,377  (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 450 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 450 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

Online

#1438 2022-05-17 06:40:21

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/05 Thursday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/17 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: 228.6 Sol Number: 451  Change in degrees is +.6 Julian date is: 0036451
Solar Longitude: 228.0 Sol Number: 450  Change in degrees is +.6 Julian date is: 0036450
---
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:   207,953,803 km [26.3 km/s] Difference is -74837 <= -3118 km/hour at 8.0 on 05/17 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,028,640 km [26.3 km/s] Difference is -76808 <= -3200 km/hour at 8.0 on 05/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,105,448 km [26.3 km/s] Difference is -78757 <= -3282 km/hour at 8.0 on 05/15 (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: A broad swath of objects 9 hours ahead - at top: PGC 72155 Mg 14.60 RA 23h 42m 00.6s well above path on Day 0
PGC 1064935 RA 23h 40m 15.7s in path and about 18 hours ahead on Day 0 - Day 1 right where it should be ... about 7 hours behind and in the path

---

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

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

Earth Distance 2022/05/17 229,788,888  (decrease)
Earth Distance 2022/05/16 230,624,555  (decrease)
Earth Distance 2022/05/15 231,443,179  (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 451 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 451 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

Online

#1439 2022-05-18 07:03:08

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/06 Friday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/18 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: 229.2 Sol Number: 452  Change in degrees is +.6 Julian date is: 0036452
Solar Longitude: 228.6 Sol Number: 451  Change in degrees is +.6 Julian date is: 0036451
---
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:   207,880,904 km [26.4 km/s] Difference is -72899 <= -3037 km/hour at 8.0 on 05/18 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,953,803 km [26.3 km/s] Difference is -74837 <= -3118 km/hour at 8.0 on 05/17 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   208,028,640 km [26.3 km/s] Difference is -76808 <= -3200 km/hour at 8.0 on 05/16 (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: Bright star: TYC 5255-350-1 Mg 9.17 RA 23h 46m 08.0s Day 0 about 18 hours ahead below path
Next up: Galaxy in path PGC 1072440 RA 23h 45m 43.6s Day 0 about 15 hours ahead.
PGC 72155 Mg 14.60 RA 23h 42m 00.6s well above path on Day 0 - 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 2022/05/18 228,949,555  (decrease)
Earth Distance 2022/05/17 229,788,888  (decrease)
Earth Distance 2022/05/16 230,624,555  (decrease)

---

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198, 12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 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 452 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 452 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

Online

#1440 2022-05-19 06:37:29

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/07 Saturday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/19 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: 229.9 Sol Number: 453  Change in degrees is +.7 Julian date is: 0036453
Solar Longitude: 229.2 Sol Number: 452  Change in degrees is +.6 Julian date is: 0036452
---
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:   207,810,070 km [26.4 km/s] Difference is -70834 <= -2951 km/hour at 8.0 on 05/19 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,880,904 km [26.4 km/s] Difference is -72899 <= -3037 km/hour at 8.0 on 05/18 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,953,803 km [26.3 km/s] Difference is -74837 <= -3118 km/hour at 8.0 on 05/17 (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 below path TYC 5255-847-1 Mg 11.65 RA 23h 48m 27.5s Day 0 about 12 hours ahead
Note a generous sprinkling of galaxies in todayu's view
TYC 5255-350-1 Mg 9.17 RA 23h 46m 08.0s Day 0 about 18 hours ahead below path - about 5 hours behind
PGC 1072440 RA 23h 45m 43.6s Day 0 about 15 hours ahead. - Day 1 about 8 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 2022/05/19 228,140,000  (decrease)
Earth Distance 2022/05/18 228,949,555  (decrease)
Earth Distance 2022/05/17 229,788,888  (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 453 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 453 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

Online

#1441 2022-05-20 06:30:22

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/08 Sunday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/20 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: 230.5 Sol Number: 454  Change in degrees is +.6 Julian date is: 0036454
Solar Longitude: 229.9 Sol Number: 453  Change in degrees is +.7 Julian date is: 0036453
---
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:   207,741,233 km [26.4 km/s] Difference is -68837 <= -2868 km/hour at 8.0 on 05/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,810,070 km [26.4 km/s] Difference is -70834 <= -2951 km/hour at 8.0 on 05/19 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,880,904 km [26.4 km/s] Difference is -72899 <= -3037 km/hour at 8.0 on 05/18 (time 8:00)

---

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

Next up: Galaxy below path PGC 1079798 About 11 hours ahead on Day 0
TYC 5255-847-1 Mg 11.65 RA 23h 48m 27.5s Day 0 about 12 hours ahead - Day 1 about 10 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 2022/05/20 227,322,822  (decrease)
Earth Distance 2022/05/19 228,140,000  (decrease)
Earth Distance 2022/05/18 228,949,555  (decrease)

---

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198, 12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 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 454 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 454 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Online

#1442 2022-05-21 08:38:21

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/09 Monday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/21 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

Solar Longitude: 231.1 Sol Number: 455  Change in degrees is +.6 Julian date is: 0036455
Solar Longitude: 230.5 Sol Number: 454  Change in degrees is +.6 Julian date is: 0036454
---
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:   207,674,389 km [26.4 km/s] Difference is -66844 <= -2785 km/hour at 8.0 on 05/21 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,741,233 km [26.4 km/s] Difference is -68837 <= -2868 km/hour at 8.0 on 05/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,810,070 km [26.4 km/s] Difference is -70834 <= -2951 km/hour at 8.0 on 05/19 (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.

---

PGC 309???? RA 23h 53m 27.9s and TYC ??? RA 23h 53m 46.2s Both are under The Sky Live banner
Next up: a galaxy and a star above the path, about 10+ hours ahead on Day 0
PGC 1079798 About 11 hours ahead on Day 0 - Day 1 Still visible just inside the right border - 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 2022/05/21 226,428,999  (decrease)
Earth Distance 2022/05/20 227,322,822  (decrease)
Earth Distance 2022/05/19 228,140,000  (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 455 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 455 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Online

#1443 2022-05-22 06:27:19

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/10 Tuesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/22 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: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 231.8 Sol Number: 456  Change in degrees is +.7 Julian date is: 0036456
Solar Longitude: 231.1 Sol Number: 455  Change in degrees is +.6 Julian date is: 0036455
---
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:   207,609,544 km [26.4 km/s] Difference is -64845 <= -2702 km/hour at 8.0 on 05/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,674,389 km [26.4 km/s] Difference is -66844 <= -2785 km/hour at 8.0 on 05/21 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,741,233 km [26.4 km/s] Difference is -68837 <= -2868 km/hour at 8.0 on 05/20 (time 8:00)

---

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

---

Next up: a pair of galaxies bracketing the path: PGC 1099424 RA 23h 56m 34.3s and PGC 1098580 Both about 12 hours ahead
PGC 309???? RA 23h 53m 27.9s and TYC ??? RA 23h 53m 46.2s Both are under The Sky Live banner - Day 1 both are 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 2022/05/22 225,683,666  (decrease)
Earth Distance 2022/05/21 226,428,999  (decrease)
Earth Distance 2022/05/20 227,322,822  (decrease)

---

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198, 12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 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 456 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 456 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Online

#1444 2022-05-23 09:21:42

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/11 Wednesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/23 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: 232.4 Sol Number: 457  Change in degrees is +.6 Julian date is: 0036457
Solar Longitude: 231.8 Sol Number: 456  Change in degrees is +.7 Julian date is: 0036456
---
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:   207,546,763 km [26.4 km/s] Difference is -62781 <= -2616 km/hour at 8.0 on 05/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,609,544 km [26.4 km/s] Difference is -64845 <= -2702 km/hour at 8.0 on 05/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,674,389 km [26.4 km/s] Difference is -66844 <= -2785 km/hour at 8.0 on 05/21 (time 8:00)

---

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

---

One Day Note: HIP 118293 is close to the transition from RA 23h to RA 00h ....
Next up: There is a mini-Boomer just above the path, with a decent chance of remaining visible for 24 hours: HIP 118293 Mg 7.45 RA 23h 59m 35.0s
PGC 1099424 RA 23h 56m 34.3s and PGC 1098580 Both about 12 hours ahead - Day1 Still visible at the far right of the view: About 10 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 2022/05/23 224,766,666  (decrease)
Earth Distance 2022/05/22 225,683,666  (decrease)
Earth Distance 2022/05/21 226,428,999  (decrease)

---

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198, 12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 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 457 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 457 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

Online

#1445 2022-05-24 07:49:03

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/12 Thursday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/24 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: 233.0 Sol Number: 458  Change in degrees is +.6 Julian date is: 0036458
Solar Longitude: 232.4 Sol Number: 457  Change in degrees is +.6 Julian date is: 0036457
---
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:   207,486,019 km [26.4 km/s] Difference is -60744 <= -2531 km/hour at 8.0 on 05/24 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,546,763 km [26.4 km/s] Difference is -62781 <= -2616 km/hour at 8.0 on 05/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,609,544 km [26.4 km/s] Difference is -64845 <= -2702 km/hour at 8.0 on 05/22 (time 8:00)

---

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

---

Next up: Star TYC 4663-431-1 RA 00h 02m 36.0s Day 0 about 18 hours ahead
Next up: Galaxy PGC 1113598 RA 00h 01m 59.3s in path Day 0 about 12 hours ahead
One Day note: Mars has passed through the transition from 23h 59m 59s to Right Ascension: 00h 00m 30.3s
HIP 118293 Mg 7.45 RA 23h 59m 35.0s - Day 1 about 6 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 2022/05/24 224,001,700  (decrease)
Earth Distance 2022/05/23 224,766,666  (decrease)
Earth Distance 2022/05/22 225,683,666  (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 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 458 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 458 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

Online

#1446 2022-05-25 08:08:18

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/13 Friday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/25 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: 233.6 Sol Number: 459  Change in degrees is +.6 Julian date is: 0036459
Solar Longitude: 233.0 Sol Number: 458  Change in degrees is +.6 Julian date is: 0036458
---
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:   207,427,305 km [26.4 km/s] Difference is -58714 <= -2446 km/hour at 8.0 on 05/25 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,486,019 km [26.4 km/s] Difference is -60744 <= -2531 km/hour at 8.0 on 05/24 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,546,763 km [26.4 km/s] Difference is -62781 <= -2616 km/hour at 8.0 on 05/23 (time 8:00)

---

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

---

Next up: Galaxy just 9 hours ahead - above path - PGC 1120797 RA 00h 04m 01.9s - may be in view tomorrow at far right
Next up: Unmarked star directly in path: RA 00h 04m 39.s Note two sets of pairs below and trailing
: Star TYC 4663-431-1 RA 00h 02m 36.0s Day 0 about 18 hours ahead - Day 1 - right on queue - in path about 6 hours behind
: Galaxy PGC 1113598 RA 00h 01m 59.3s in path Day 0 about 12 hours ahead - Day 1 - right on queue ... in path and 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 2022/05/25 223,175,133  (decrease)
Earth Distance 2022/05/24 224,001,700  (decrease)
Earth Distance 2022/05/23 224,766,666  (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 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 459 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 459 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

Online

#1447 2022-05-26 08:20:07

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/14 Saturday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/26 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: 234.3 Sol Number: 460  Change in degrees is +.7 Julian date is: 0036460
Solar Longitude: 233.6 Sol Number: 459  Change in degrees is +.6 Julian date is: 0036459
---
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:   207,370,672 km [26.4 km/s] Difference is -56633 <= -2360 km/hour at 8.0 on 05/26 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,427,305 km [26.4 km/s] Difference is -58714 <= -2446 km/hour at 8.0 on 05/25 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,486,019 km [26.4 km/s] Difference is -60744 <= -2531 km/hour at 8.0 on 05/24 (time 8:00)

---

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

---

Next up: A chain of three galaxies along path: PGC 1131054 RA 00h 08m 15.0s about 18 hours ahead - should be visible tomorrow
: Galaxy just 9 hours ahead - above path - PGC 1120797 RA 00h 04m 01.9s - may be in view tomorrow at far right - Nope! Out of view
: Unmarked star directly in path: RA 00h 04m 39.2s Note two sets of pairs below and trailing - Day 1 Still visible at extreme right - about 12 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 2022/05/26 222,353,999  (decrease)
Earth Distance 2022/05/25 223,175,133  (decrease)
Earth Distance 2022/05/24 224,001,700  (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 460 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 460 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

Online

#1448 2022-05-27 06:34:21

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/15 Sunday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/27 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: 234.9 Sol Number: 461  Change in degrees is +.6 Julian date is: 0036461
Solar Longitude: 234.3 Sol Number: 460  Change in degrees is +.7 Julian date is: 0036460
---
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:   207,316,087 km [26.4 km/s] Difference is -54585 <= -2274 km/hour at 8.0 on 05/27 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,370,672 km [26.4 km/s] Difference is -56633 <= -2360 km/hour at 8.0 on 05/26 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,427,305 km [26.4 km/s] Difference is -58714 <= -2446 km/hour at 8.0 on 05/25 (time 8:00)

---

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

---

Next up: Galaxy inside asterism: PGC 1135999 RA 00h 10m 44.5s Day 0 about 18 hours ahead (note six galaxies along path)
: PGC 1131054 RA 00h 08m 15.0s about 18 hours ahead - should be visible tomorrow - Day 1 just 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 2022/05/27 221,598,777  (decrease)
Earth Distance 2022/05/26 222,353,999  (decrease)
Earth Distance 2022/05/25 223,175,133  (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 461 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 461 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Online

#1449 2022-05-28 06:05:32

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/16 Monday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/28 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

Solar Longitude: 235.5 Sol Number: 462  Change in degrees is +.6 Julian date is: 0036462
Solar Longitude: 234.9 Sol Number: 461  Change in degrees is +.6 Julian date is: 0036461
---
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:   207,263,585 km [26.4 km/s] Difference is -52505 <= -2188 km/hour at 8.0 on 05/28 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,316,087 km [26.4 km/s] Difference is -54585 <= -2274 km/hour at 8.0 on 05/27 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,370,672 km [26.4 km/s] Difference is -56633 <= -2360 km/hour at 8.0 on 05/26 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   207,427,305 km [26.4 km/s] Difference is -58714 <= -2446 km/hour at 8.0 on 05/25 (time 8:00)

---

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

---

Next up: Star directly in path: TYC 4664-405-1 Mag 11.94 RA 00h 12m 58.9s Day 0 about 12 hours ahead
Note scrape on optical plate used for skyscape - "swoosh" above path ends just above Mars on Day 0
: PGC 1135999 RA 00h 10m 44.5s Day 0 about 18 hours ahead (note six galaxies along path) - Day 1 about five 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 2022/05/28 220,780,972  (decrease)
Earth Distance 2022/05/27 221,598,777  (decrease)
Earth Distance 2022/05/26 222,353,999  (decrease)

---

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198, 12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 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 462 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 462 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

Online

#1450 2022-05-29 06:04:31

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,438

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

Today on Mars: 0036/17/17 Tuesday <<-- Days of the week offset 5 with Earth.  (count from Mars to Earth (updated 2022/05/04))
---
Today on Earth: 2022/05/29 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: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 236.2 Sol Number: 463  Change in degrees is +.7 Julian date is: 0036463
Solar Longitude: 235.5 Sol Number: 462  Change in degrees is +.6 Julian date is: 0036462
---
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:   207,213,157 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)
Distance: Mars >> Sun per theskylive.com:   207,316,087 km [26.4 km/s] Difference is -54585 <= -2274 km/hour at 8.0 on 05/27 (time 8:00)

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

---

Next up: A pair of galaxies above and below the path, 10 hours ahead: PGC 1152003 RA 00h 14m 58.9s and PGC 1146389 RA 00h 15m 29.0s
: TYC 4664-405-1 Mag 11.94 RA 00h 12m 58.9s Day 0 about 12 hours ahead - Day 1 about 10 hours past Mars and just above path

---

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

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

---

Earth Distance 2022/05/29 219,944,222  (decrease)
Earth Distance 2022/05/28 220,780,972  (decrease)
Earth Distance 2022/05/27 221,598,777  (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 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 463 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 463 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 17 of 24: << There are 28 days in Month 17. Fifth month of Q3

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