New Mars Forums

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/02  Monday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/03 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 066.7  Sol Number: 142  Change in degrees is +.5
Previous SL:      066.2  Previous Sol:141

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 will occur near 70 degrees Ls (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.

Distance: Mars >> Sun per theskylive.com:   249,156,047 km [22.0 km/s] Difference is +015213 <= 0621 km/hour at 8.5 on 07/03 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,140,834 km [22.0 km/s] Difference is +016756 <= 0684 km/hour at 8.0 on 07/02 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,106,939 km [22.0 km/s] Difference is +019757 <= 0806 km/hour at 8.5 on 06/30 (time:8:30)

Next up: Star pair: TYC 1404-1580-1 Magnitude 10.99 Day 0 about 15 hours ahead
Next up: Star pair: TYC 1404-1597-1 Magnitude 12.72 below path Day 0 about 15 hours ahead
Galaxy PGC 1553419 RA 9h 3m 7.6s above path about 11 hours ahead Day 1 about 14 hours behind
Star 1397-1189-1 Magnitude 10.20 above path about 11 hours ahead Day 1 about 14 hours behind

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 365,204,067
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 142 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 142 is Monday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/03  Tuesday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/04 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 067.1  Sol Number: 143  Change in degrees is +.4
Previous SL:      066.7  Previous Sol:142

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 will occur near 70 degrees Ls (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.

Distance: Mars >> Sun per theskylive.com:   249,169,454 km [22.0 km/s] Difference is +013407 <= 0559 km/hour at 8.5 on 07/04 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,156,047 km [22.0 km/s] Difference is +015213 <= 0621 km/hour at 8.5 on 07/03 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,140,834 km [22.0 km/s] Difference is +016756 <= 0684 km/hour at 8.0 on 07/02 (time:8:00)

Next up: Galaxy PGC 1539518 RA 9h 8m 42.7s in path Day 0 about 15 hours ahead
Star pair: TYC 1404-1580-1 Magnitude 10.99 Day 0 about 15 hours ahead Day 1 about 7 hours behind
Star pair: TYC 1404-1597-1 Magnitude 12.72 below path Day 0 about 15 hours ahead Day 1 about 7 hours behind

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 365,204,067
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 143 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 143 is Tuesday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/04  Wednesday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/05 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 067.5  Sol Number: 144  Change in degrees is +.4
Previous SL:      067.1  Previous Sol:143

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 will occur near 70 degrees Ls (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.

Distance: Mars >> Sun per theskylive.com:   249,181,374 km [22.0 km/s] Difference is +011920 <= 0497 km/hour at 8.5 on 07/05 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,169,454 km [22.0 km/s] Difference is +013407 <= 0559 km/hour at 8.5 on 07/04 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,156,047 km [22.0 km/s] Difference is +015213 <= 0621 km/hour at 8.5 on 07/03 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,140,834 km [22.0 km/s] Difference is +016756 <= 0684 km/hour at 8.0 on 07/02 (time:8:00)

Next up: Galaxy PGC 1533843 just below path RA 9h 11m 4.9s Day 0 about 14 hours ahead
Next up: Star 1404-471-1 Magnitude 11.48 just above path Day 0 about 15 hours ahead
There's a small mini-Boomer in the view today: HIP 44918 Magnitude 7.06 below path and just past Mars
Galaxy PGC 1539518 RA 9h 8m 42.7s in path Day 0 about 15 hours ahead Day 1 about 7 hours behind

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 365,204,067
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 144 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 144 is Wednesday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/05  Thursday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/06 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 068.0  Sol Number: 145  Change in degrees is +.5
Previous SL:      067.5  Previous Sol:144

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 will occur near 70 degrees Ls (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.

Distance: Mars >> Sun per theskylive.com:   249,191,590 km [22.0 km/s] Difference is +010216 <= 0435 km/hour at 8.0 on 07/06 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,181,374 km [22.0 km/s] Difference is +011920 <= 0497 km/hour at 8.5 on 07/05 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,169,454 km [22.0 km/s] Difference is +013407 <= 0559 km/hour at 8.5 on 07/04 (time:8:30)

Next up: HIP 45217 Magnitude 8.65 above path and about 8 hours ahead.
We have a trio of middling stars and a curious asterism in the view today ... HIP 45212, TYC 141-595-1 and TYC 1401-445-1.
Galaxy PGC 1533843 just below path RA 9h 11m 4.9s Day 0 about 14 hours ahead Day 1 about 7 hours behind
Star 1404-471-1 Magnitude 11.48 just above path Day 0 about 15 hours ahead Day 1 about 7 hours behind

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 365,204,067
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 145 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 145 is Thursday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/06  Friday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/07 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 068.4  Sol Number: 146  Change in degrees is +.4
Previous SL:      068.0  Previous Sol:145

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 will occur near 70 degrees Ls (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.

Distance: Mars >> Sun per theskylive.com:   249,200,565 km [22.0 km/s] Difference is +008975 <= 0374 km/hour at 8.0 on 07/07 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,191,590 km [22.0 km/s] Difference is +010216 <= 0435 km/hour at 8.0 on 07/06 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,181,374 km [22.0 km/s] Difference is +011920 <= 0497 km/hour at 8.5 on 07/05 (time:8:30)

Next up: a pair: Star TYC 1402-992-1 and 1402-401-1 in path Day 0 about 16 hours ahead
HIP 45217 Magnitude 8.65 above path and about 8 hours ahead. Day 1 about 16 hours behind
We have a trio of middling stars and a curious asterism in the view today ... HIP 45212, TYC 141-595-1 and TYC 1401-445-1.

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 365,204,067
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 146 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 146 is Friday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/07  Saturday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/08 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 068.8  Sol Number: 147  Change in degrees is +.4
Previous SL:      068.4  Previous Sol:146

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 will occur near 70 degrees Ls (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.

Distance: Mars >> Sun per theskylive.com:   249,208,332 km [22.0 km/s] Difference is +007767 <= 0311 km/hour at 9.0 on 07/08 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   249,200,565 km [22.0 km/s] Difference is +008975 <= 0374 km/hour at 8.0 on 07/07 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,191,590 km [22.0 km/s] Difference is +010216 <= 0435 km/hour at 8.0 on 07/06 (time:8:00)

Next up: Galaxy and Star pair: Galaxy PGC 1522109 RA 9h 18m 15.6 m Star TYC 1402-784-1 Magnitude 11.60 just above Day 0 about 10 hours
Star TYC 1402-992-1 and 1402-401-1 in path Day 0 about 16 hours ahead Day 1 about 8 hours behind still bracketing the path

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 365,204,067
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 147 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 147 is Saturday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/08  Sunday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/09  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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 069.3  Sol Number: 148  Change in degrees is +.5
Previous SL:      068.8  Previous Sol:147

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 will occur near 70 degrees Ls (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.

Distance: Mars >> Sun per theskylive.com:   249,214,054 km [22.0 km/s] Difference is +005722 <= 0249 km/hour at 8.0 on 07/09 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,208,332 km [22.0 km/s] Difference is +007767 <= 0311 km/hour at 9.0 on 07/08 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   249,200,565 km [22.0 km/s] Difference is +008975 <= 0374 km/hour at 8.0 on 07/07 (time:8:00)

Next up: Galaxy PGC 26477 RA 9h 21m 22.7s Just above path Day 0 about 17 hours ahead
Galaxy and Star pair: Galaxy PGC 1522109 RA 9h 18m 15.6 m Star TYC 1402-784-1 Magnitude 11.60 just above Day 1 about 11 hours behind

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 365,204,067
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 148 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 148 is Sunday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/09  Monday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/10  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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 069.7  Sol Number: 149  Change in degrees is +.4
Previous SL:      069.3  Previous Sol:148

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 will occur near 70 degrees Ls (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.

Distance: Mars >> Sun per theskylive.com:   249,218,558 km [22.0 km/s] Difference is +004504 <= 0188 km/hour at 8.0 on 07/10 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,214,054 km [22.0 km/s] Difference is +005722 <= 0249 km/hour at 8.0 on 07/09 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,208,332 km [22.0 km/s] Difference is +007767 <= 0311 km/hour at 9.0 on 07/08 (time:9:00)

Next up: Galaxies above and below: PGC 1510679 below PGC 265578 above Day 0 both about 14 hours ahead
There is a mini-Boomer in the view today: HIP 45894 right at Mars and well below
Galaxy PGC 26477 RA 9h 21m 22.7s Just above path Day 0 about 17 hours ahead Day 1 about 5 hours behind

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 365,204,067
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 149 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 149 is Monday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/10  Tuesday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/11  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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 070.2  Sol Number: 150  Change in degrees is +.5
Previous SL:      069.7  Previous Sol:149

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 will occur near 70 degrees Ls (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.

Distance: Mars >> Sun per theskylive.com:   249,221,486 km [22.0 km/s] Difference is +002928 <= 0127 km/hour at 7.0 on 07/11 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   249,218,558 km [22.0 km/s] Difference is +004504 <= 0188 km/hour at 8.0 on 07/10 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,214,054 km [22.0 km/s] Difference is +005722 <= 0249 km/hour at 8.0 on 07/09 (time:8:00)

Next up: Another pair of galaxies: PGC 1508238 above and PGC 1506740 below path Day 0 about 15 hours ahead
Galaxies above and below: PGC 1510679 below PGC 265578 above Day 1 about 10 hours past
There is a mini-Boomer in the view today: HIP 46232 Magnitude 6.19 well above Day 0 about 11 hours ahead

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 365,204,067
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 150 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 150 is Tuesday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/11  Wednesday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/12  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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 070.6  Sol Number: 151  Change in degrees is +.4
Previous SL:      070.2  Previous Sol:150

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 will occur near 70 degrees Ls (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.

Distance: Mars >> Sun per theskylive.com:   249,223,083 km [22.0 km/s] Difference is +001598 <= 0067 km/hour at 7.0 on 07/12 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   249,221,486 km [22.0 km/s] Difference is +002928 <= 0127 km/hour at 7.0 on 07/11 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   249,218,558 km [22.0 km/s] Difference is +004504 <= 0188 km/hour at 8.0 on 07/10 (time:8:00)

Next up: Star 1403-392-1 RA 9h 28m 20.8s just below path  Day 0 about 16 hours ahead
PGC 1508238 above and PGC 1506740 below path Day 0 about 15 hours ahead Day 1 about 8 hours past

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 365,204,067
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 151 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 151 is Wednesday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/12  Thursday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/13  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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 071.0  Sol Number: 152  Change in degrees is +.4
Previous SL:      070.6  Previous Sol:151

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 will occur near 70 degrees Ls (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.

Distance: Mars >> Sun per theskylive.com:   249,223,135 km [22.0 km/s] Difference is +000052 <= 0002 km/hour at 9.0 on 07/13 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   249,223,083 km [22.0 km/s] Difference is +001598 <= 0067 km/hour at 7.0 on 07/12 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   249,221,486 km [22.0 km/s] Difference is +002928 <= 0127 km/hour at 7.0 on 07/11 (time:7:00)

Next up: A cup shaped asterism: TYC 1403-45-1, TYC 1403-225-1, TYC 1403-237-1 just above path Day 0 about 15 hours ahead
Star 1403-392-1 RA 9h 28m 20.8s just below path  Day 0 about 16 hours ahead Day 1 about 8 hours behind

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 365,204,067
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 152 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 152 is Thursday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/13  Friday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/14  Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One day note: Mars reached aphelion in the past Sol ... it is now beginning it's one (Earth) year return toward the Sun.

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 071.5  Sol Number: 153  Change in degrees is +.5
Previous SL:      071.0  Previous Sol:152

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 did occur near 70 degrees Ls (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.

Distance: Mars >> Sun per theskylive.com:   249,221,725 km [22.0 km/s] Difference is -001410 <= 0061 km/hour at 8.0 on 07/14 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,223,135 km [22.0 km/s] Difference is +000052 <= 0002 km/hour at 9.0 on 07/13 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   249,223,083 km [22.0 km/s] Difference is +001598 <= 0067 km/hour at 7.0 on 07/12 (time:7:00)

Next up - a triangle: TYC 1403-939-1, 1403-1087-1 and 1403-1071-1 about 12 hours ahead on Day 0
We have a micro-boomer in the mix today HIP 46745 Magnitude 7.56 below Mars and about 2 hours ahead on Day 0
A cup shaped asterism: TYC 1403-45-1, TYC 1403-225-1, TYC 1403-237-1 just above path Day 0 about 15 hours ahead Day 1 about 6 hours behind

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 153 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 153 is Friday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/14  Saturday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/15  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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 071.9  Sol Number: 154  Change in degrees is +.4
Previous SL:      071.5  Previous Sol:153

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.

Distance: Mars >> Sun per theskylive.com:   249,217,719 km [22.0 km/s] Difference is -003006 <= 0123 km/hour at 8.5 on 07/15 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,221,725 km [22.0 km/s] Difference is -001410 <= 0061 km/hour at 8.0 on 07/14 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,223,135 km [22.0 km/s] Difference is +000052 <= 0002 km/hour at 9.0 on 07/13 (time:9:00)

Next up: Galaxy directly in path: PGC 1486185 RA 9h 36m 14.8s Day 0 about 20 hours ahead
TYC 1403-939-1, 1403-1087-1 and 1403-1071-1 about 12 hours ahead on Day 0 - on Day 1, they are about 11 hours past Mars
We have a micro-boomer in the mix today HIP 46926 Magnitude 9.32 even with Mars and well below

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 154 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 154 is Saturday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/15  Sunday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/16  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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 072.3  Sol Number: 155  Change in degrees is +.4
Previous SL:      071.9  Previous Sol:154

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.

Distance: Mars >> Sun per theskylive.com:   249,214,700 km [22.0 km/s] Difference is -004019 <= 0183 km/hour at 6.5 on 07/16 (time:6:30)
Distance: Mars >> Sun per theskylive.com:   249,217,719 km [22.0 km/s] Difference is -003006 <= 0123 km/hour at 8.5 on 07/15 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,221,725 km [22.0 km/s] Difference is -001410 <= 0061 km/hour at 8.0 on 07/14 (time:8:00)

Next up: Star TYC 1410-726-1 Magnitude 11.22 in path Day 0 about 20 hours ahead
Galaxy directly in path: PGC 1486185 RA 9h 36m 14.8s Day 0 about 20 hours ahead on Day 1 just past Mars
We have a pair of micro-boomers in the mix today HIP 47211 Magnitude 8.00 below HIP 47233 Magnitude 8.59 above the path

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 155 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 155 is Sunday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/16  Monday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/17 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 072.8  Sol Number: 156  Change in degrees is +.5
Previous SL:      072.3  Previous Sol:155

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.

Distance: Mars >> Sun per theskylive.com:   249,208,746 km [22.0 km/s] Difference is -006224 <= 0244 km/hour at 8.0 on 07/17 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,214,700 km [22.0 km/s] Difference is -004019 <= 0183 km/hour at 6.5 on 07/16 (time:6:30)
Distance: Mars >> Sun per theskylive.com:   249,217,719 km [22.0 km/s] Difference is -003006 <= 0123 km/hour at 8.5 on 07/15 (time:8:30)

Next up: Slim pickings - the plates show many objects but few are identified: Star TYC 1410-688-1 Magnitude 11.14 Day 0 about 15 hours ahead
Star TYC 1410-726-1 Magnitude 11.22 in path Day 0 about 20 hours ahead Day 1 about 5 hours past Mars
We have a pair of micro-boomers in the mix HIP 47233 Magnitude 8.59 above the path still visible Day 1 about 15 hours behind

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 156 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 156 is Monday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/17  Tuesday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/18 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 073.2  Sol Number: 157  Change in degrees is +.4
Previous SL:      072.8  Previous Sol:156

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.

Distance: Mars >> Sun per theskylive.com:   249,201,085 km [22.0 km/s] Difference is -007391 <= 0315 km/hour at 7.5 on 07/18 (time:7:30)
Distance: Mars >> Sun per theskylive.com:   249,208,746 km [22.0 km/s] Difference is -006224 <= 0244 km/hour at 8.0 on 07/17 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   249,214,700 km [22.0 km/s] Difference is -004019 <= 0183 km/hour at 6.5 on 07/16 (time:6:30)

Galaxy pair: PGC 1471176 RA 9h 43m 8.1s and PGC 1471515 above path Day 0 about 18 hours ahead
Star TYC 1410-688-1 Magnitude 11.14 Day 0 about 15 hours ahead Day 1 about 5 hours past Mars

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 157 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 157 is Tuesday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/18  Wednesday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/19 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 073.6  Sol Number: 158  Change in degrees is +.4
Previous SL:      073.2  Previous Sol:157

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.

Distance: Mars >> Sun per theskylive.com:   249,191,599 km [22.0 km/s] Difference is -009486 <= 0365 km/hour at 9.5 on 07/19 (time:9:30)
Distance: Mars >> Sun per theskylive.com:   249,201,085 km [22.0 km/s] Difference is -007391 <= 0315 km/hour at 7.5 on 07/18 (time:7:30)
Distance: Mars >> Sun per theskylive.com:   249,208,746 km [22.0 km/s] Difference is -006224 <= 0244 km/hour at 8.0 on 07/17 (time:8:00)

Next up: Galaxy PGC 1464849 RA 9h 46m 11.0s in path Day 0 about 20 hours ahead
We have a micro-Boomer in the scene: HIP 47887 Mgnitude 8.72 above path Day 0 about 12 hours ahead.
Galaxy pair: PGC 1471176 RA 9h 43m 8.1s and PGC 1471515 above path Day 0 about 18 hours ahead Day 1 about 8 hours behind

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 158 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 158 is Wednesday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/19  Thursday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/20 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 074.1  Sol Number: 159  Change in degrees is +.5
Previous SL:      073.6  Previous Sol:158

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.

Distance: Mars >> Sun per theskylive.com:   249,181,377 km [22.0 km/s] Difference is -010222 <= 0435 km/hour at 9.0 on 07/20 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   249,191,599 km [22.0 km/s] Difference is -009486 <= 0365 km/hour at 9.5 on 07/19 (time:9:30)
Distance: Mars >> Sun per theskylive.com:   249,201,085 km [22.0 km/s] Difference is -007391 <= 0315 km/hour at 7.5 on 07/18 (time:7:30)

Next up: a trio of galaxies just above path: PGC 1460239, PGC 1461389, PGC 1461780 Day 0 about 12-15 hours ahead
Galaxy PGC 1464849 RA 9h 46m 11.0s in path Day 0 about 20 hours ahead - Day 1 about 3 hours past Mars.
We have a micro-Boomer in the scene: HIP 47887 Mgnitude 8.72 above path Day 0 about 12 hours ahead. Day 1 still visible at extreme top of view.

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 159 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 159 is Thursday  in the Proposed Business calendar for Mars.  <<== Skip day occurred June 11 on Earth ... next will occur in August 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 next Skip Day will occur in August (4-5 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/19  Thursday <<-- Days of the week are not in alignment with Earth. 

Skip Day: The French web site used as a reference for this daily report is showing a Skip Day at Sol 159

Today on Earth: 2021/07/21 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 074.5  Sol Number: 159  Change in degrees is +.4
Previous SL:      074.1  Previous Sol:159 <<== Skip day is reported by French web site

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.

Distance: Mars >> Sun per theskylive.com:   249,170,252 km [22.0 km/s] Difference is -011125 <= 0494 km/hour at 7.5 on 07/21 (time:7:30)
Distance: Mars >> Sun per theskylive.com:   249,181,377 km [22.0 km/s] Difference is -010222 <= 0435 km/hour at 9.0 on 07/20 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   249,191,599 km [22.0 km/s] Difference is -009486 <= 0365 km/hour at 9.5 on 07/19 (time:9:30)

Up next: Nice trio of stars:HIP 48169, TYC 834-1465-1 and TYC 834-1390-1 above path Day 0 CG is about five hours ahead
A trio of galaxies just above path: PGC 1460239, PGC 1461389, PGC 1461780 Day 0 about 12-15 hours ahead Day 1 aout 5-11 hours past Mars
Galaxy PGC 1464849 RA 9h 46m 11.0s in path Day 0 about 20 hours ahead - Day 1 about 3 hours past Mars. Day 2 (surprise) Still visible far upper right.

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 159 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 159 is Thursday  in the Proposed Business calendar for Mars.  <<== Skip day occurred July 21 the next skip day is expected August 27 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.

2021/07/21 The French web site used for reference for this daily report is showing 159 as today's Sol.

The next Skip Day will occur in August (27th on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/20  Friday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/22 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 075.0  Sol Number: 160  Change in degrees is +.5
Previous SL:      074.5  Previous Sol:159 <<== Skip day is reported by French web site

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.

Distance: Mars >> Sun per theskylive.com:   249,156,352 km [22.0 km/s] Difference is -013900 <= 0556 km/hour at 8.5 on 07/22 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,170,252 km [22.0 km/s] Difference is -011125 <= 0494 km/hour at 7.5 on 07/21 (time:7:30)
Distance: Mars >> Sun per theskylive.com:   249,181,377 km [22.0 km/s] Difference is -010222 <= 0435 km/hour at 9.0 on 07/20 (time:9:00)

Mini-Boomer passing through ... HIP 48300 Magnitude 8.08 under path and just past Mars
Notable objects: TYC 834-1-1 RA 9h 50m 45.4s in path and 5.5 hours behind
Next up: Star TYC 835-969-1 Magnitude 12.48
Next up not much! Galaxy PGC 28464 RA 9h 52m 42.8s above path about 12 hours ahead
Nice trio of stars:HIP 48169, TYC 834-1465-1 and TYC 834-1390-1 above path Day 0 CG is about five hours ahead Day 1 ? mystery ? all gone from view

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 160 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 160 is Friday  in the Proposed Business calendar for Mars.  <<== Skip day occurred July 21 the next skip day is expected August 27 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 next Skip Day will occur in August (27th on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/21  Saturday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/23 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 075.4  Sol Number: 161  Change in degrees is +.4
Previous SL:      075.0  Previous Sol:160 <<== Skip day is reported by French web site

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.

Distance: Mars >> Sun per theskylive.com:   249,142,565 km [22.0 km/s] Difference is -013887 <= 0617 km/hour at 7.0 on 07/23 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   249,156,352 km [22.0 km/s] Difference is -013900 <= 0556 km/hour at 8.5 on 07/22 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,170,252 km [22.0 km/s] Difference is -011125 <= 0494 km/hour at 7.5 on 07/21 (time:7:30)

Next up Micro-Boomer HIP 48579 Magnitude 9.92 below path Day 0 about 12 hours ahead
Star TYC 835-969-1 Magnitude 12.48 Day 1 about 8 hours behind
Galaxy PGC 28464 RA 9h 52m 42.8s above path about 12 hours ahead Day 1 about 10 hours behind

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 161 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 161 is Saturday  in the Proposed Business calendar for Mars.  <<== Skip day occurred July 21 the next skip day is expected August 27 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 next Skip Day will occur in August (27th on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/22  Sunday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/24 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 075.8  Sol Number: 162  Change in degrees is +.4
Previous SL:      075.4  Previous Sol:161

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.

Distance: Mars >> Sun per theskylive.com:   249,124,458 km [22.0 km/s] Difference is -018007 <= 0680 km/hour at 9.5 on 07/24 (time:9:30)
Distance: Mars >> Sun per theskylive.com:   249,142,565 km [22.0 km/s] Difference is -013887 <= 0617 km/hour at 7.0 on 07/23 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   249,156,352 km [22.0 km/s] Difference is -013900 <= 0556 km/hour at 8.5 on 07/22 (time:8:30)

There are four Mini-Boomers in the view today. Two are in the path: HIP 48855 and HIP 48825 are about 15 hours ahead on Day 0

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 162 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 162 is Sunday  in the Proposed Business calendar for Mars.  <<== Skip day occurred July 21 the next skip day is expected August 27 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 next Skip Day will occur in August (27th on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/23  Monday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/25 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 076.3  Sol Number: 163  Change in degrees is +.5
Previous SL:      075.8  Previous Sol:162

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.

Distance: Mars >> Sun per theskylive.com:   249,108,504 km [22.0 km/s] Difference is -015954 <= 0742 km/hour at 7.0 on 07/25 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   249,124,458 km [22.0 km/s] Difference is -018007 <= 0680 km/hour at 9.5 on 07/24 (time:9:30)
Distance: Mars >> Sun per theskylive.com:   249,142,565 km [22.0 km/s] Difference is -013887 <= 0617 km/hour at 7.0 on 07/23 (time:7:00)

Next up: HIP 49002 Magnitude 10.50 is directly in the path and about 15 hours ahead.
There are four Mini-Boomers in the view today. Three are in the path: HIP 48855 and HIP 48825 are about 5 hours behind on Day 0

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 163 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 163 is Monday  in the Proposed Business calendar for Mars.  <<== Skip day occurred July 21 the next skip day is expected August 27 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 next Skip Day will occur in August (27th on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/24  Tuesday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/26 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 076.7  Sol Number: 164  Change in degrees is +.4
Previous SL:      076.3  Previous Sol:163

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.

Distance: Mars >> Sun per theskylive.com:   249,088,043 km [22.0 km/s] Difference is -020461 <= 0802 km/hour at 8.5 on 07/26 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,108,504 km [22.0 km/s] Difference is -015954 <= 0742 km/hour at 7.0 on 07/25 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   249,124,458 km [22.0 km/s] Difference is -018007 <= 0680 km/hour at 9.5 on 07/24 (time:9:30)

Next up: HIP 49140 Magnitude 10.01 above path Day 0 about 6 hours ahead.
HIP 49002 Magnitude 10.50 is directly in the path and about 15 hours ahead. On Day 1 49002 is exactly 11 hours behind.
There are two Mini-Boomers in the view today.

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 372,762,783
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 164 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 164 is Tuesday  in the Proposed Business calendar for Mars.  <<== Skip day occurred July 21 the next skip day is expected August 27 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 next Skip Day will occur in August (27th on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)

tahanson43206

Moderator

Registered: 2018-04-27

Posts: 19,263

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

Today on Mars: 0036/06/25  Wednesday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/07/27 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

Martian Year: 36  Martian Month in 12 month format: 3 <<== The Astronomical month will increment when longitude reaches 90 degrees

Solar Longitude: 077.1  Sol Number: 165  Change in degrees is +.4
Previous SL:      076.7  Previous Sol:164

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.

Distance: Mars >> Sun per theskylive.com:   249,068,142 km [22.0 km/s] Difference is -019901 <= 0865 km/hour at 7.5 on 07/27 (time:7:30)
Distance: Mars >> Sun per theskylive.com:   249,088,043 km [22.0 km/s] Difference is -020461 <= 0802 km/hour at 8.5 on 07/26 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   249,108,504 km [22.0 km/s] Difference is -015954 <= 0742 km/hour at 7.0 on 07/25 (time:7:00)

Next up: There are lots of galaxies in the view today. One is directly in the path! PGC 1420566 RA 10h 4m 32.9s Day 0 12 hours ahead
HIP 49140 Magnitude 10.01 above path Day 0 about 6 hours ahead. On Day 1 49140 is about 18 hours past Mars

As a general observation ... In recent days 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.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending noticeably down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update here) was km 380,319,998
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 20 and 22 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000] [21:390,000,000]

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

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 165 is in Month 06 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 06 extends from Sol 141 through 167. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 04
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 165 is Wednesday  in the Proposed Business calendar for Mars.  <<== Skip day occurred July 21 the next skip day is expected August 27 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 next Skip Day will occur in August (27th on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may 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.

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

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

Month 6 of 24 - Quarter 1 of 4 [Month 1-6]  (This month has 27 days)