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#1301 2022-01-05 07:10:12

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/12/16 Monday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/05 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 152.6 Sol Number: 323  Change in degrees is +.5
Previous SL:      152.1 Previous Sol:322

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:   229,003,340 km [24.0 km/s] Difference is -189384 <= 8059 km/hour at 8.0 on 01/05 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   229,192,724 km [24.0 km/s] Difference is -185106 <= 8048 km/hour at 8.5 on 01/04 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   229,377,830 km [24.0 km/s] Difference is -204846 <= 8033 km/hour at 9.5 on 01/03 (time 9:30)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Next up: (added at 3:29 UTC) ...mini-Boomer showed up below path HIP 83456 Magnitude 7.33 about 18 hours ahead of Mars
Next up: Galaxy PGC 165707 RA 17h 00m 25.4s above path Day 0 about 8 hours ahead
TYC 6810-239-1 Mg 11.49 RA 15h 57m 22.6s trailed by 6810-275-1 and 6810-72-1 below path about 9 hours ahead - Day 1 about 12 hours past

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

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 2022/01/05 346,613,771 (decrease)
Earth Distance 2022/01/04 347,375,889 (decrease)
Earth Distance 2022/01/03 348,161,725 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 323 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 323 is Monday  in the Proposed Business calendar for Mars.

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 12 of 24: This is the last month of the Second Quarter. (27 Sols)

Offline

#1302 2022-01-06 07:47:40

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/12/17 Tuesday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/06 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 153.1 Sol Number: 324  Change in degrees is +.5
Previous SL:      152.6 Previous Sol:323

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:   228,809,644 km [24.0 km/s] Difference is -194696 <= 8112 km/hour at 8.0 on 01/06 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   229,003,340 km [24.0 km/s] Difference is -189384 <= 8059 km/hour at 8.0 on 01/05 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   229,192,724 km [24.0 km/s] Difference is -185106 <= 8048 km/hour at 8.5 on 01/04 (time 8:30)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Next up: 5 TYC in a stack across path: TYC 68110-412-1 at top RA 17h 04m 54.9s Day 0 about 18 hours ahead
Galaxy PGC 165707 RA 17h 00m 25.4s above path Day 0 about 8 hours ahead - Day 1 out of view on right

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

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 2022/01/06 345,786,551 (decrease)
Earth Distance 2022/01/05 346,613,771 (decrease)
Earth Distance 2022/01/04 347,375,889 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 324 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 324 is Tuesday  in the Proposed Business calendar for Mars.

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 12 of 24: This is the last month of the Second Quarter. (27 Sols)

Offline

#1303 2022-01-07 07:53:53

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/12/18 Wednesday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/07 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 153.6 Sol Number: 325  Change in degrees is +.5
Previous SL:      153.1 Previous Sol:324

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:   228,619,713 km [24.1 km/s] Difference is -193731 <= 8244 km/hour at 7.5 on 01/07 (time 7:30)
Distance: Mars >> Sun per theskylive.com:   228,809,644 km [24.0 km/s] Difference is -194696 <= 8112 km/hour at 8.0 on 01/06 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   229,003,340 km [24.0 km/s] Difference is -189384 <= 8059 km/hour at 8.0 on 01/05 (time 8:00)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Next up: TYC 6811-765-1 Mg 10.70 RA 17h 07m 39.6s above path Day 0 about 18 hours ahead
5 TYC in a stack across path: TYC 68110-412-1 at top RA 17h 04m 54.9s Day 0 about 18 hours ahead - Day 1 about 5 hours past

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

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 2022/01/07 344,970,490 (decrease)
Earth Distance 2022/01/06 345,786,551 (decrease)
Earth Distance 2022/01/05 346,613,771 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 325 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 325 is Wednesday  in the Proposed Business calendar for Mars.

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 12 of 24: This is the last month of the Second Quarter. (27 Sols)

Offline

#1304 2022-01-08 07:40:16

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/12/19 Thursday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/08 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 154.1 Sol Number: 326  Change in degrees is +.5
Previous SL:      153.6 Previous Sol:325

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:   228,421,627 km [24.1 km/s] Difference is -198086 <= 8285 km/hour at 8.0 on 01/08 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   228,619,713 km [24.1 km/s] Difference is -193731 <= 8244 km/hour at 7.5 on 01/07 (time 7:30)
Distance: Mars >> Sun per theskylive.com:   228,809,644 km [24.0 km/s] Difference is -194696 <= 8112 km/hour at 8.0 on 01/06 (time 8:00)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Next up: Below path TYC 6812-481-1 Mg 11.96 RA 17h 10m 35.2s Day 0 about 15 hours ahead
Next up (note the background is dense with uncatalogued stars) TYC 6812-35-1 Mg 10.92 RA 17h 10m 01.8s just above path Day 0 - about 10 hours ahead
TYC 6811-765-1 Mg 10.70 RA 17h 07m 39.6s above path Day 0 about 18 hours ahead -Day 1 about 9 hours past

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

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 2022/01/08 344,159,346 (decrease)
Earth Distance 2022/01/07 344,970,490 (decrease)
Earth Distance 2022/01/06 345,786,551 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 326 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 326 is Thursday  in the Proposed Business calendar for Mars.

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 12 of 24: This is the last month of the Second Quarter. (27 Sols)

Offline

#1305 2022-01-09 07:47:06

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/12/20 Friday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/09 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 154.7 Sol Number: 327  Change in degrees is +.6
Previous SL:      154.1 Previous Sol:326

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.

*** One day note: The computed rate of progress dropped instead of increasing as expected. I'll investigate after posting.

Distance: Mars >> Sun per theskylive.com:   228,227,265 km [24.1 km/s] Difference is -194362 <= 8098 km/hour at 8.0 on 01/09 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   228,421,627 km [24.1 km/s] Difference is -198086 <= 8285 km/hour at 8.0 on 01/08 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   228,619,713 km [24.1 km/s] Difference is -193731 <= 8244 km/hour at 7.5 on 01/07 (time 7:30)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Note dense starscape in background. There are about 20 galaxies identified and perhaps that many stars. We must be looking at the Milky Way .
Next up: Star well below path: TYC 6812-490-1 Mg 11.89 RA 17h 13m 14.8s Day 0 about 12 hours ahead
TYC 6812-481-1 Mg 11.96 RA 17h 10m 35.2s Day 0 about 15 hours ahead - Day 1 about 9 hours behind
TYC 6812-35-1 Mg 10.92 RA 17h 10m 01.8s just above path Day 0 - about 10 hours ahead - Day 1 about 12 hours behind

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

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 2022/01/09 343,335,507 (decrease)
Earth Distance 2022/01/08 344,159,346 (decrease)
Earth Distance 2022/01/07 344,970,490 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 327 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 327 is Friday  in the Proposed Business calendar for Mars.

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 12 of 24: This is the last month of the Second Quarter. (27 Sols)

Offline

#1306 2022-01-10 09:15:47

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/12/21 Saturday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/10 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 155.2 Sol Number: 328  Change in degrees is +.6
Previous SL:      154.6 Previous Sol:327

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.

*** One day note: The computed rate of progress dropped instead of increasing as expected. I'll investigate after posting.

Distance: Mars >> Sun per theskylive.com:   228,020,576 km [24.1 km/s] Difference is -206689 <= 8105 km/hour at 9.5 on 01/10 (time 9:30)
Distance: Mars >> Sun per theskylive.com:   228,227,265 km [24.1 km/s] Difference is -194362 <= 8098 km/hour at 8.0 on 01/09 (time 8:00)
Something happened to reset the calculation of rate of movement in orbit: 8285 dropped to 8098 and it seems to be resuming from there.
Distance: Mars >> Sun per theskylive.com:   228,421,627 km [24.1 km/s] Difference is -198086 <= 8285 km/hour at 8.0 on 01/08 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   228,619,713 km [24.1 km/s] Difference is -193731 <= 8244 km/hour at 7.5 on 01/07 (time 7:30)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Next up: TYC 6812-595-1 Mg 10.19 RA 17h 17m 13.3s well below path Day 0 about 15 hours ahead
Note dense starscape in background.  We must be looking at the Milky Way .
TYC 6812-490-1 Mg 11.89 RA 17h 13m 14.8s Day 0 about 12 hours ahead - Day 1 off the screen on right

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

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 2022/01/10 342,459,639 (decrease)
Earth Distance 2022/01/09 343,335,507 (decrease)
Earth Distance 2022/01/08 344,159,346 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 328 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 328 is Saturday  in the Proposed Business calendar for Mars.

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 12 of 24: This is the last month of the Second Quarter. (27 Sols)

Offline

#1307 2022-01-11 07:24:23

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/12/21 Saturday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/11 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 155.7 Sol Number: 329  Change in degrees is +.5
Previous SL:      155.2 Previous Sol:328

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.

*** One day note: The computed rate of progress dropped instead of increasing as expected. I'll investigate after posting.

Distance: Mars >> Sun per theskylive.com:   227,838,057 km [24.1 km/s] Difference is -182501 <= 8111 km/hour at 8.0 on 01/11 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   228,020,576 km [24.1 km/s] Difference is -206689 <= 8105 km/hour at 9.5 on 01/10 (time 9:30)
Distance: Mars >> Sun per theskylive.com:   228,227,265 km [24.1 km/s] Difference is -194362 <= 8098 km/hour at 8.0 on 01/09 (time 8:00)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Next up: TYC 6825-434-1 Mg 12.27 RA 17h 20m 11.7s below path Day 0 about 15 hours ahead
TYC 6812-595-1 Mg 10.19 RA 17h 17m 13.3s well below path Day 0 about 15 hours ahead - Day 1 about 5 hours behind
Note dense starscape in background.  We must be looking at the Milky Way .

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

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 2022/01/11 341,694,599 (decrease)
Earth Distance 2022/01/10 342,459,639 (decrease)
Earth Distance 2022/01/09 343,335,507 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 329 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 329 is Sunday  in the Proposed Business calendar for Mars.

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 12 of 24: This is the last month of the Second Quarter. (27 Sols)

Offline

#1308 2022-01-12 09:02:18

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/12/23 Monday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/12 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 156.2 Sol Number: 330  Change in degrees is +.5
Previous SL:      155.7 Previous Sol:329

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.

*** One day note: The computed rate of progress dropped instead of increasing as expected. I'll investigate after posting.

Distance: Mars >> Sun per theskylive.com:   227,635,074 km [24.2 km/s] Difference is -203001 <= 8120 km/hour at 9.0 on 01/12 (time 9:00)
Distance: Mars >> Sun per theskylive.com:   227,838,057 km [24.1 km/s] Difference is -182501 <= 8111 km/hour at 8.0 on 01/11 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   228,020,576 km [24.1 km/s] Difference is -206689 <= 8105 km/hour at 9.5 on 01/10 (time 9:30)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Next up: TYC 6825-485-1 Mg 12.50 below path (same as HIP) Day 0 about 12 hours ahead
Next up: micro-Boomer! HIP 84980 Mg 8.11 RA 17h 22m 06.4s below path Day 0 about 7 hours ahead
TYC 6825-434-1 Mg 12.27 RA 17h 20m 11.7s below path Day 0 about 15 hours ahead - About 8 hours past
Note dense starscape in background.  We must be looking at the Milky Way .

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

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 2022/01/12 340,807,205 (decrease)
Earth Distance 2022/01/11 341,694,599 (decrease)
Earth Distance 2022/01/10 342,459,639 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 330 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 330 is Monday  in the Proposed Business calendar for Mars.

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 12 of 24: This is the last month of the Second Quarter. (27 Sols)

Offline

#1309 2022-01-13 07:49:28

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/12/24 Tuesday <<-- Days of the week offset 2 with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/13 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 156.7 Sol Number: 331  Change in degrees is +.5
Previous SL:      156.2 Previous Sol:330

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.

*** One day note: The computed rate of progress dropped instead of increasing as expected. I'll investigate after posting.

Distance: Mars >> Sun per theskylive.com:   227,448,197 km [24.2 km/s] Difference is -186877 <= 8125 km/hour at 8.0 on 01/13 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   227,635,074 km [24.2 km/s] Difference is -203001 <= 8120 km/hour at 9.0 on 01/12 (time 9:00)
Distance: Mars >> Sun per theskylive.com:   227,838,057 km [24.1 km/s] Difference is -182501 <= 8111 km/hour at 8.0 on 01/11 (time 8:00)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

TYC 6825-485-1 Mg 12.50 below path (same as HIP) Day 0 about 12 hours ahead - Day 1 about 11 hours past [RA 17h 22m 43.5s] Mars [RA 17h 24m 08.2s]
Observation: The time difference of the two bodies as seen from Earth does not match the location difference in the celestial field.
That should (probably) not be surprising, but I've never thought about it before. This space is reserved for Mars location 24 (Earth) hours from now: [  ]
HIP 84980 Mg 8.11 RA 17h 22m 06.4s below path Day 0 about 7 hours ahead - Day 1 (23-7>>16) About 16 hours past Mars
Note dense starscape in background.  We must be looking at the Milky Way . - on 2022/01/14 we are moving out of the dense view of the Milky Way

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/13 We just transitioned from a view of (what I think is) an arm of the Galaxy, to a less densely populated starscape.

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 2022/01/13 340,013,694) (decrease)
Earth Distance 2022/01/12 340,807,205 (decrease)
Earth Distance 2022/01/11 341,694,599 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 331 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 331 is Tuesday  in the Proposed Business calendar for Mars.

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 12 of 24: This is the last month of the Second Quarter. (27 Sols)

Offline

#1310 2022-01-14 06:01:38

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/12/25 Wednesday <<-- Days of the week offset 2 with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/14 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 156.3 Sol Number: 332  Change in degrees is +.6
Previous SL:      156.7 Previous Sol:331

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.

*** One day note: The computed rate of progress dropped instead of increasing as expected. I'll investigate after posting.

Distance: Mars >> Sun per theskylive.com:   227,266,077 km [24.2 km/s] Difference is -182120 <= 8130 km/hour at 6.4 on 01/14 (time 6:24)
Distance: Mars >> Sun per theskylive.com:   227,448,197 km [24.2 km/s] Difference is -186877 <= 8125 km/hour at 8.0 on 01/13 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   227,635,074 km [24.2 km/s] Difference is -203001 <= 8120 km/hour at 9.0 on 01/12 (time 9:00)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Next up: TYC 6826-208-1 Mg 11.99 RA 17h 27m 55.2s below path Day 0 about 6 hours ahead.
TYC 6825-485-1 Mg 12.50 below path (same as HIP) Day 0 about 12 hours ahead - Day 1 about 11 hours past [RA 17h 22m 43.5s]
Mars [RA 17h 24m 08.2s] This space is reserved for Mars location 24 (Earth) hours from now: [17h 27m 02.4s  ] Difference is 3 minutes
Mars has moved 3 minutes against the background field, as seen from Earth over a period of 22.4 hours

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/13 We just transitioned from a view of (what I think is) an arm of the Galaxy, to a less densely populated starscape.

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 2022/01/14 339,236,135) (decrease)
Earth Distance 2022/01/13 340,013,694) (decrease)
Earth Distance 2022/01/12 340,807,205 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 332 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 332 is Wednesday  in the Proposed Business calendar for Mars.

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 12 of 24: This is the last month of the Second Quarter. (27 Sols)

Offline

#1311 2022-01-15 08:09:41

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/12/26 Thursday <<-- Days of the week offset 2 with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/15 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 157.8 Sol Number: 333  Change in degrees is +.5
Previous SL:      157.3 Previous Sol:332

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.

*** One day note: The computed rate of progress dropped instead of increasing as expected. I'll investigate after posting.

Distance: Mars >> Sun per theskylive.com:   227,053,644 km [24.2 km/s] Difference is -212433 <= 8139 km/hour at 8.5 on 01/15 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   227,266,077 km [24.2 km/s] Difference is -182120 <= 8130 km/hour at 6.4 on 01/14 (time 6:24)
Distance: Mars >> Sun per theskylive.com:   227,448,197 km [24.2 km/s] Difference is -186877 <= 8125 km/hour at 8.0 on 01/13 (time 8:00)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Next up: Dense skyscape again - ? galactic arm? - TYC 6826-291-1 Mg 11.36 RA 17h 32m 03.3s in path Day 0 about 12 hours ahead
HIP 85703 Mg 7.33 RA 17h 30m 49.6 s well below Mars ahead 15 hours at 00:56 UTC - Next day - just ahead of Mars < 5 hours
TYC 6826-208-1 Mg 11.99 RA 17h 27m 55.2s below path Day 0 about 6 hours ahead. - Day 1 - off the view to the right

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/13 We just transitioned from a view of (what I think is) an arm of the Galaxy, to a less densely populated starscape.

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 2022/01/15 338,320,842) (decrease)
Earth Distance 2022/01/14 339,236,135) (decrease)
Earth Distance 2022/01/13 340,013,694) (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 333 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 333 is Thursday  in the Proposed Business calendar for Mars.

One day note ... This is the last month of a quarter, so we will be skipping Friday and continuing tomorrow with Saturday.

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 12 of 24: This is the last month of the Second Quarter. (27 Sols)

Offline

#1312 2022-01-16 07:30:36

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/12/28 Saturday <<-- Days of the week offset 1 with Earth. The next skip day is in January on Earth.

One day note: We are executing the end of a quarter in the proposed Business Calendar for Mars. We skipped Friday.

Today on Earth: 2022/01/16 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 158.3 Sol Number: 334  Change in degrees is +.5
Previous SL:      157.8 Previous Sol:333

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.

*** One day note: The computed rate of progress dropped instead of increasing as expected. I'll investigate after posting.

Distance: Mars >> Sun per theskylive.com:   226,862,476 km [24.2 km/s] Difference is -191168 <= 8135 km/hour at 8.0 on 01/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   227,053,644 km [24.2 km/s] Difference is -212433 <= 8139 km/hour at 8.5 on 01/15 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   227,266,077 km [24.2 km/s] Difference is -182120 <= 8130 km/hour at 6.4 on 01/14 (time 6:24)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Next up: TYC 6827-682-1 Mg 11.98 RA 17h 34m 57.2s in path Day 0 about 10 hours ahead
TYC 6826-291-1 Mg 11.36 RA 17h 32m 03.3s in path Day 0 about 12 hours ahead - Day 1 about 12 hours behind

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal. 

Earth Distance 2022/01/16 337,496,089) (decrease)
Earth Distance 2022/01/15 338,320,842) (decrease)
Earth Distance 2022/01/14 339,236,135) (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 334 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 334 is Saturday  in the Proposed Business calendar for Mars.  We skipped Friday because this is the end of a quarter.

One day note ... This is the last month of a quarter, so we will be skipping Friday and continuing tomorrow with Saturday.

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 12 of 24: This is the last month of the Second Quarter. (27 Sols)

Offline

#1313 2022-01-17 06:17:48

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/01 Sunday <<-- Days of the week offset 1 with Earth. The next skip day is in January on Earth.

One day note: Today is the first day of Month 13, and Quarter 3

Today on Earth: 2022/01/17 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 158.8 Sol Number: 335  Change in degrees is +.5
Previous SL:      158.3 Previous Sol:334

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.

*** One day note: The computed rate of progress dropped instead of increasing as expected. I'll investigate after posting.

Distance: Mars >> Sun per theskylive.com:   226,675,204 km [24.3 km/s] Difference is -187272 <= 8142 km/hour at 7.0 on 01/17 (time 7:00)
Distance: Mars >> Sun per theskylive.com:   226,862,476 km [24.2 km/s] Difference is -191168 <= 8135 km/hour at 8.0 on 01/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   227,053,644 km [24.2 km/s] Difference is -212433 <= 8139 km/hour at 8.5 on 01/15 (time 8:30)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Next up: TYC 6827-555-1 Mg 10.56 RA 17h 38m 06.4s above path Day 0 about 12 hours ahead
TYC 6827-682-1 Mg 11.98 RA 17h 34m 57.2s in path Day 0 about 10 hours ahead - Day 1 about 12 hours past

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal. 

Earth Distance 2022/01/17 336,691,033) (decrease)
Earth Distance 2022/01/16 337,496,089) (decrease)
Earth Distance 2022/01/15 338,320,842) (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 335 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 335 is Sunday  in the Proposed Business calendar for Mars.  We skipped Friday because this is the end of a quarter.

One day note ... This is the first day of Month 13 and Quarter 3

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

Offline

#1314 2022-01-18 10:04:23

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/02 Monday <<-- Days of the week offset 1 with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/18 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 159.4 Sol Number: 336  Change in degrees is +.6
Previous SL:      158.8 Previous Sol:335

Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   226,463,442 km [24.3 km/s] Difference is -211762 <= 8145 km/hour at 9.0 on 01/18 (time 9:00)
Distance: Mars >> Sun per theskylive.com:   226,675,204 km [24.3 km/s] Difference is -187272 <= 8142 km/hour at 7.0 on 01/17 (time 7:00)
Distance: Mars >> Sun per theskylive.com:   226,862,476 km [24.2 km/s] Difference is -191168 <= 8135 km/hour at 8.0 on 01/16 (time 8:00)

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries

Next up: slim pickings .... lots of stars in the field but none catalogued. Settle for: HIP 86515 Mg 7.86 RA 17h 40m 49.9s below path Day 0 about s5 hours ahead
TYC 6827-555-1 Mg 10.56 RA 17h 38m 06.4s above path Day 0 about 12 hours ahead - Day 1 found at far right of view

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal. 

Earth Distance 2022/01/18 335,704,707) (decrease)
Earth Distance 2022/01/17 336,691,033) (decrease)
Earth Distance 2022/01/16 337,496,089) (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 336 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 336 is Monday  in the Proposed Business calendar for Mars.  We skipped Friday because this is the end of a quarter.

One day note ... This is the first day of Month 13 and Quarter 3

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

Offline

#1315 2022-01-20 08:14:17

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/04 Wednesday <<-- Days of the week offset 1 with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/20 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 160.4 Sol Number: 338  Change in degrees is +.5
Previous SL:      159.9 Previous Sol:337

Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   226,080,504 km [24.3 km/s] Difference is -191465 <= 8147 km/hour at 8.0 on 01/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   226,271,969 km [24.3 km/s] Difference is -191473 <= 8147 km/hour at 8.5 on 01/19 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   226,463,442 km [24.3 km/s] Difference is -211762 <= 8145 km/hour at 9.0 on 01/18 (time 9:00)

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

Next up: A Bracket pair: TYC 6828-1419-1 Mg 12.07 RA 17h 47m 42.4s and TYC 6828-1832-1 below Day 0 about 10 hours ahead
TYC 6828-1647-1 Mg 11.03 RA 17h 44m 57.2s below path Day 0 about 15 hours ahead. - Day 1 about 10 hours behind Mars
TYC 6828-1773-1 Mg 11.27 RA 17h 43m 33.4s Below path - Day 1 just ahead of Mars at 14:28 UTC next day - Day 2 still visible at extreme right of view

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal. 

Earth Distance 2022/01/20 334,056,333) (decrease)
Earth Distance 2022/01/19 334,902,217) (decrease)
Earth Distance 2022/01/18 335,704,707) (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 338 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 338 is Wednesday  in the Proposed Business calendar for Mars.  We skipped Friday because this is the end of a quarter.

One day note ... This is the first day of Month 13 and Quarter 3

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

Offline

#1316 2022-01-21 06:40:36

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/05 Thursday <<-- Days of the week offset 1 with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/21 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 161.0 Sol Number: 339  Change in degrees is +.6
Previous SL:      159.4 Previous Sol:338

Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   225,893,013 km [24.3 km/s] Difference is -187491 <= 8152 km/hour at 7.0 on 01/21 (time 7:00)
Distance: Mars >> Sun per theskylive.com:   226,080,504 km [24.3 km/s] Difference is -191465 <= 8147 km/hour at 8.0 on 01/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   226,271,969 km [24.3 km/s] Difference is -191473 <= 8147 km/hour at 8.5 on 01/19 (time 8:30)

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

Next up: Micro-Boomer below path HIP 87304 Mg 9.84 RA 17h 50m 20.0s about 9 hours ahead on Day 0
TYC 6828-1419-1 Mg 12.07 RA 17h 47m 42.4s and TYC 6828-1832-1 below Day 0 about 10 hours ahead - Day 1 about 12 hours past

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal. 

Earth Distance 2022/01/21 333,250,771) (decrease)
Earth Distance 2022/01/20 334,056,333) (decrease)
Earth Distance 2022/01/19 334,902,217) (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 339 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 339 is Thursday  in the Proposed Business calendar for Mars.  We skipped Friday because this is the end of a quarter.

One day note ... This is the first day of Month 13 and Quarter 3

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 January 2022 (estimate: 21st) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

Offline

#1317 2022-01-22 08:29:59

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/05 Thursday <<-- Days of the week offset 1 with Earth. Today is skip day on Earth.

Today on Earth: 2022/01/22 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 161.5 Sol Number: 339  Change in degrees is +.5
Previous SL:      161.0 Previous Sol:339 <<== Skip day

Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   225,689,372 km [24.4 km/s] Difference is -203641 <= -8146 km/hour at 8.0 on 01/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   225,893,013 km [24.3 km/s] Difference is -187491 <= -8152 km/hour at 7.0 on 01/21 (time 7:00)
Distance: Mars >> Sun per theskylive.com:   226,080,504 km [24.3 km/s] Difference is -191465 <= 8147 km/hour at 8.0 on 01/20 (time 8:00)

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

Next up: TYC 6841-1650-1 Mg 11.70 RA 17h 54m 41.3s - just above path - Day 0 about 15 hours ahead
HIP 87304 Mg 9.84 RA 17h 50m 20.0s about 9 hours ahead on Day 0 - Day 1 just off screen to the right

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

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal, and on 2022/01/22, it is effectively horizontal.

Earth Distance 2022/01/22 332,328,333) (decrease)
Earth Distance 2022/01/21 333,250,771) (decrease)
Earth Distance 2022/01/20 334,056,333) (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 339 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 339 is Thursday  in the Proposed Business calendar for Mars.  Sol 339 is a skip day on Earth.

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

The next Skip Day will occur in February 2022 (estimate: 28th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

Offline

#1318 2022-01-23 07:59:57

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/06 Friday <<-- Days of the week offset 2 with Earth.

Today on Earth: 2022/01/23 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: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 162.0 Sol Number: 340  Change in degrees is +.5
Previous SL:      161.5 Previous Sol:339 <<== Skip day

Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   225,493,586 km [24.4 km/s] Difference is -195786 <= -8157 km/hour at 8.0 on 01/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   225,689,372 km [24.4 km/s] Difference is -203641 <= -8146 km/hour at 8.0 on 01/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   225,893,013 km [24.3 km/s] Difference is -187491 <= -8152 km/hour at 7.0 on 01/21 (time 7:00)

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

Next up: Mini-Boomer HIP 87880 Mg 6.40 RA 17h 57m 07.5s below path Day 0 about 12 hours ahead
TYC 6841-1650-1 Mg 11.70 RA 17h 54m 41.3s - just above path - Day 0 about 15 hours ahead - Day 1 about 8 hours behind

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

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal, and on 2022/01/22, it is effectively horizontal.

Earth Distance 2022/01/23 331,472,123) (decrease)
Earth Distance 2022/01/22 332,328,333) (decrease)
Earth Distance 2022/01/21 333,250,771) (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip. [19:330,000,000/20:360,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 340 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 340 is Friday  in the Proposed Business calendar for Mars.  Sol 339 is a skip day on Earth.

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

The next Skip Day will occur in February 2022 (estimate: 28th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

Offline

#1319 2022-01-24 06:24:59

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/07 Saturday <<-- Days of the week offset 2 with Earth.

Today on Earth: 2022/01/24 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

Martian Year: 36  Martian Month in 12 month format: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 162.6 Sol Number: 341  Change in degrees is +.6
Previous SL:      162.0 Previous Sol:340

Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   225,306,429 km [24.4 km/s] Difference is -187157 <= -8137 km/hour at 7.0 on 01/24 (time 7:00)
Distance: Mars >> Sun per theskylive.com:   225,493,586 km [24.4 km/s] Difference is -195786 <= -8157 km/hour at 8.0 on 01/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   225,689,372 km [24.4 km/s] Difference is -203641 <= -8146 km/hour at 8.0 on 01/22 (time 8:00)

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

Next up: HIP 88116 Mg 4.74 RA 17h 59m 47.6s just above path Day 0 about 9 hours ahead
HIP 87880 Mg 6.40 RA 17h 57m 07.5s below path Day 0 about 12 hours ahead - Day 1 about 11 hours behind

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

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal, and on 2022/01/22, it is effectively horizontal.

Earth Distance 2022/01/24 330,659,118) (decrease)
Earth Distance 2022/01/23 331,472,123) (decrease)
Earth Distance 2022/01/22 332,328,333) (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 19 minutes. Communications delay would be 36+ minutes round trip. [18:300,000,000/19:330,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 341 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 341 is Saturday  in the Proposed Business calendar for Mars.  Sol 339 is a skip day on Earth.

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

The next Skip Day will occur in February 2022 (estimate: 28th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

Offline

#1320 2022-01-25 07:21:49

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/08 Sunday <<-- Days of the week offset 2 with Earth.

Today on Earth: 2022/01/25 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

Martian Year: 36  Martian Month in 12 month format: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 163.1 Sol Number: 342  Change in degrees is +.5
Previous SL:      162.6 Previous Sol:341

Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   225,102,861 km [24.4 km/s] Difference is -203568 <= -8143 km/hour at 8.0 on 01/25 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   225,306,429 km [24.4 km/s] Difference is -187157 <= -8137 km/hour at 7.0 on 01/24 (time 7:00)
Distance: Mars >> Sun per theskylive.com:   225,493,586 km [24.4 km/s] Difference is -195786 <= -8157 km/hour at 8.0 on 01/23 (time 8:00)

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

Next up: TYC 6842-1130-1 Mg 10.98 RA 18h 04m 09.3s in path Day 0 about 15 hours ahead
HIP 88116 Mg 4.74 RA 17h 59m 47.6s just above path Day 0 about 9 hours ahead - Day 1 off screen on right

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

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal, and on 2022/01/22, it is effectively horizontal.

Earth Distance 2022/01/25 329,751,779) (decrease)
Earth Distance 2022/01/24 330,659,118) (decrease)
Earth Distance 2022/01/23 331,472,123) (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 19 minutes. Communications delay would be 36+ minutes round trip. [18:300,000,000/19:330,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 342 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 342 is Sunday  in the Proposed Business calendar for Mars.  Sol 339 is a skip day on Earth.

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

The next Skip Day will occur in February 2022 (estimate: 28th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

Offline

#1321 2022-01-26 08:43:45

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/09 Monday <<-- Days of the week offset 2 with Earth.

Today on Earth: 2022/01/26 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

Martian Year: 36  Martian Month in 12 month format: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 163.6 Sol Number: 343  Change in degrees is +.5
Previous SL:      163.1 Previous Sol:342

Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   224,903,425 km [24.5 km/s] Difference is -199436 <= -8140 km/hour at 8.5 on 01/26 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   225,102,861 km [24.4 km/s] Difference is -203568 <= -8143 km/hour at 8.0 on 01/25 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   225,306,429 km [24.4 km/s] Difference is -187157 <= -8137 km/hour at 7.0 on 01/24 (time 7:00)

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

Next up: Micro-Boomer HIP 88705 Mg 8.26 RA 18h 06m 33.9s below path Day 0 about 9 hours ahead
TYC 6842-1130-1 Mg 10.98 RA 18h 04m 09.3s in path Day 0 about 15 hours ahead - Day 1 exactly 9 hours past Mars

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

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal, and on 2022/01/22, it is effectively horizontal.

Earth Distance 2022/01/26 328,824,856 (decrease)
Earth Distance 2022/01/25 329,751,779 (decrease)
Earth Distance 2022/01/24 330,659,118 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 19 minutes. Communications delay would be 36+ minutes round trip. [18:300,000,000/19:330,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 343 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 343 is Monday  in the Proposed Business calendar for Mars.  Sol 339 is a skip day on Earth.

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

The next Skip Day will occur in February 2022 (estimate: 28th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

Offline

#1322 2022-01-27 08:15:12

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/10 Tuesday <<-- Days of the week offset 2 with Earth.

Today on Earth: 2022/01/27 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

Martian Year: 36  Martian Month in 12 month format: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 164.2 Sol Number: 344  Change in degrees is +.6
Previous SL:      163.6 Previous Sol:343

Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   224,704,081 km [24.5 km/s] Difference is -199344 <= -8136 km/hour at 9.0 on 01/27 (time 9:00)
Distance: Mars >> Sun per theskylive.com:   224,903,425 km [24.5 km/s] Difference is -199436 <= -8140 km/hour at 8.5 on 01/26 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   225,102,861 km [24.4 km/s] Difference is -203568 <= -8143 km/hour at 8.0 on 01/25 (time 8:00)

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

Next up: TYC 6843-615-1 Mg 9.80 RA 18h 09m 43.6s below path Day 0 about 10 hours ahead
HIP 88705 Mg 8.26 RA 18h 06m 33.9s below path Day 0 about 9 hours ahead - Day 1 about 12 hours past Mars

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

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal, and on 2022/01/22, it is effectively horizontal.

Earth Distance 2022/01/27 327,963,814 (decrease)
Earth Distance 2022/01/26 328,824,856 (decrease)
Earth Distance 2022/01/25 329,751,779 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 19 minutes. Communications delay would be 36+ minutes round trip. [18:300,000,000/19:330,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 344 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 344 is Tuesday  in the Proposed Business calendar for Mars.  Sol 339 is a skip day on Earth.

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

The next Skip Day will occur in February 2022 (estimate: 28th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

Offline

#1323 2022-01-28 08:33:08

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/11 Wednesday <<-- Days of the week offset 2 with Earth.

Today on Earth: 2022/01/28 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

Martian Year: 36  Martian Month in 12 month format: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 164.7 Sol Number: 345  Change in degrees is +.5
Previous SL:      164.2 Previous Sol:344

Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   224,517,036 km [24.5 km/s] Difference is -187045 <= -8132 km/hour at 8.0 on 01/28 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   224,704,081 km [24.5 km/s] Difference is -199344 <= -8136 km/hour at 9.0 on 01/27 (time 9:00)
Distance: Mars >> Sun per theskylive.com:   224,903,425 km [24.5 km/s] Difference is -199436 <= -8140 km/hour at 8.5 on 01/26 (time 8:30)

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

Next up: A four stack across path: TYC 6843-739-1/1005-1/1112-1/535-1 RA 18h 13m 53.6s Day 0 about 18 hours ahead
TYC 6843-615-1 Mg 9.80 RA 18h 09m 43.6s below path Day 0 about 10 hours ahead - Day 1 off the screen to the right

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

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal, and on 2022/01/22, it is effectively horizontal.

Earth Distance 2022/01/28 327,071,929 (decrease)
Earth Distance 2022/01/27 327,963,814 (decrease)
Earth Distance 2022/01/26 328,824,856 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 19 minutes. Communications delay would be 36+ minutes round trip. [18:300,000,000/19:330,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 345 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 345 is Wednesday  in the Proposed Business calendar for Mars.  Sol 339 is a skip day on Earth.

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

The next Skip Day will occur in February 2022 (estimate: 28th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

Offline

#1324 2022-01-29 07:19:45

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/12 Thursday <<-- Days of the week offset 2 with Earth.

Today on Earth: 2022/01/29 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

Martian Year: 36  Martian Month in 12 month format: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 165.2 Sol Number: 346  Change in degrees is +.5
Previous SL:      164.7 Previous Sol:345

Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   224,326,012 km [24.5 km/s] Difference is -191024 <= -8129 km/hour at 7.5 on 01/29 (time 7:30)
Distance: Mars >> Sun per theskylive.com:   224,517,036 km [24.5 km/s] Difference is -187045 <= -8132 km/hour at 8.0 on 01/28 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   224,704,081 km [24.5 km/s] Difference is -199344 <= -8136 km/hour at 9.0 on 01/27 (time 9:00)

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

Next up: Micro-Boomer HIP 89566 Mg 7.51 RA 18h 16m 34.2s below path Day 0 about 15 hours ahead
TYC 6843-739-1/1005-1/1112-1/535-1 RA 18h 13m 53.6s Day 0 about 18 hours ahead - Day 1 about 5 hours past Mars

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

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal, and on 2022/01/22, it is effectively horizontal.

Earth Distance 2022/01/29 326,236,696 (decrease)
Earth Distance 2022/01/28 327,071,929 (decrease)
Earth Distance 2022/01/27 327,963,814 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 19 minutes. Communications delay would be 36+ minutes round trip. [18:300,000,000/19:330,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 346 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 346 is Thursday  in the Proposed Business calendar for Mars.  Sol 339 is a skip day on Earth.

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

The next Skip Day will occur in February 2022 (estimate: 28th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

Offline

#1325 2022-01-30 07:45:11

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,394

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

Today on Mars: 0036/13/13 Friday <<-- Days of the week offset 2 with Earth.

Today on Earth: 2022/01/30 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

Martian Year: 36  Martian Month in 12 month format: 6 <<== The Astronomical month will increment when longitude reaches 180 degrees

Solar Longitude: 165.8 Sol Number: 347  Change in degrees is +.6
Previous SL:      165.2 Previous Sol:346

Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   224,127,062 km [24.5 km/s] Difference is -198950 <= -8120 km/hour at 8.0 on 01/30 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   224,326,012 km [24.5 km/s] Difference is -191024 <= -8129 km/hour at 7.5 on 01/29 (time 7:30)
Distance: Mars >> Sun per theskylive.com:   224,517,036 km [24.5 km/s] Difference is -187045 <= -8132 km/hour at 8.0 on 01/28 (time 8:00)

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

Next up: TYC 6844-1889-1 Mg 10.85 RA 18h 19m 22.4s just above path Day 0 about 10 hours ahead
The view is dense with stars. I'm guessing this must be a part of the Milky Way.
HIP 89566 Mg 7.51 RA 18h 16m 34.2s below path Day 0 about 15 hours ahead - Day 1 about 9 hours behind

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

Note: The curve of the path of Mars as seen against the background of stars is now a line trending horizontal and East as seen from Earth
In recent days, the curve has been slowly bending up toward horizontal, and on 2022/01/22, it is effectively horizontal.

Earth Distance 2022/01/30 325,330,755 (decrease)
Earth Distance 2022/01/29 326,236,696 (decrease)
Earth Distance 2022/01/28 327,071,929 (decrease)

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

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 19 and 19 minutes. Communications delay would be 36+ minutes round trip. [18:300,000,000/19:330,000,000]

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 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 347 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 347 is Friday  in the Proposed Business calendar for Mars.  Sol 339 is a skip day on Earth.

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

The next Skip Day will occur in February 2022 (estimate: 28th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may not be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle began on the first Sol of the period of coincidence. The  alignment of weekdays interval is in the range: (310 - 337)
Use Search Term Alignment to find the first day of a period of coincidence.

For current weather on Mars see:

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

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

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

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

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

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

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

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