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#1226 2021-10-25 06:21:31

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/02  Monday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/10/25 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: 4 <<== The Astronomical month will increment when longitude reaches 120 degrees

Solar Longitude: 117.4 Sol Number: 253  Change in degrees is +.5
Previous SL:      116.9 Previous Sol:252

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:   241,453,704 km [22.7 km/s] Difference is -132580 <= 5892 km/hour at 7.5 on 10/25 (time:7:30)
Distance: Mars >> Sun per theskylive.com:   241,586,284 km [22.7 km/s] Difference is -134566 <= 5851 km/hour at 9.0 on 10/24 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   241,720,850 km [22.7 km/s] Difference is -156579 <= 5799 km/hour at 10.0 on 10/23 (time:10:00)

Next up: Star TYC 5546-835-1 Magnitude 8.14 well below path Day 1 about 5 hours ahead. RA 13h 38m 40.3s
Next up: Nothing! There are many stars in the field ahead, but note are identified.
Bright Galaxy below path: PGC 48179 Magnitude 12.80 Day 0 about 24 hours ahead. Expecting to see at Mars tomorrow. Day 1 at Mars as expected

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/10/25 388,995,857 (decrease)
Earth Distance 2021/10/24 389,290,262 (decrease)
Earth Distance 2021/10/23 389,564,788 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 253 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 253 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 November 8th on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

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

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

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

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

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

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

Month 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1227 2021-10-26 08:41:28

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/03  Tuesday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/10/26 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: 4 <<== The Astronomical month will increment when longitude reaches 120 degrees

Solar Longitude: 117.9 Sol Number: 253  Change in degrees is +.5
Previous SL:      117.4 Previous Sol:253

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:   241,299,146 km [22.8 km/s] Difference is -154558 <= 5945 km/hour at 9.5 on 10/26 (time:9:30)
Distance: Mars >> Sun per theskylive.com:   241,453,704 km [22.7 km/s] Difference is -132580 <= 5892 km/hour at 7.5 on 10/25 (time:7:30)
Distance: Mars >> Sun per theskylive.com:   241,586,284 km [22.7 km/s] Difference is -134566 <= 5851 km/hour at 9.0 on 10/24 (time:9:00)

Next up: At the far left lower corner: TYC 5549-876-1 Magnitude 10.80 Day 0 in path about 20 hours ahead
Star TYC 5546-835-1 Magnitude 8.14 well below path Day 1 about 5 hours ahead. RA 13h 38m 40.3s Day 1 off the screen on right

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/10/26 388,641,263 (decrease)
Earth Distance 2021/10/25 388,995,857 (decrease)
Earth Distance 2021/10/24 389,290,262 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 254 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 254 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 November 8th on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

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

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

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

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

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

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

Month 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1228 2021-10-27 06:27:41

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/04  Wednesday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/10/27 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: 4 <<== The Astronomical month will increment when longitude reaches 120 degrees

Solar Longitude: 118.3 Sol Number: 255  Change in degrees is +.4
Previous SL:      117.9 Previous Sol:254

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:   241,164,635 km [22.8 km/s] Difference is -134511 <= 5978 km/hour at 8.0 on 10/27 (time:8.00)
Distance: Mars >> Sun per theskylive.com:   241,299,146 km [22.8 km/s] Difference is -154558 <= 5945 km/hour at 9.5 on 10/26 (time:9:30)
Distance: Mars >> Sun per theskylive.com:   241,453,704 km [22.7 km/s] Difference is -132580 <= 5892 km/hour at 7.5 on 10/25 (time:7:30)

Next up: A trio above a mini-Boomer Galaxy PGC 977991 TYC 5549-1042-1 TYC 5549-447-1 below path Day 1 about 20 hours ahead
TYC 5549-876-1 Magnitude 10.80 Day 0 in path about 20 hours ahead - Day 1 about 2 hours past

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/10/27 388,341,085 (decrease)
Earth Distance 2021/10/26 388,641,263 (decrease)
Earth Distance 2021/10/25 388,995,857 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 255 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 255 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 November 8th on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

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

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

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

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

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

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

Month 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1229 2021-10-28 06:52:28

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/05  Thursday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/10/28 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: 4 <<== The Astronomical month will increment when longitude reaches 120 degrees

Solar Longitude: 118.8 Sol Number: 256  Change in degrees is +.5
Previous SL:      118.3 Previous Sol:255

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:   241,019,845 km [22.8 km/s] Difference is -144790 <= 6033 km/hour at 8.0 on 10/28 (time:8.00)
Distance: Mars >> Sun per theskylive.com:   241,164,635 km [22.8 km/s] Difference is -134511 <= 5978 km/hour at 8.0 on 10/27 (time:8.00)
Distance: Mars >> Sun per theskylive.com:   241,299,146 km [22.8 km/s] Difference is -154558 <= 5945 km/hour at 9.5 on 10/26 (time:9:30)

Next up: Star TYC 5557-738-1 Magnitude 10.62 below Galaxy PGC 975688 Day 0 about 20 hours ahead of Mars
Next up: Galaxy PGC 975688 RA 13h 47m 54.5s in path Day 0 about 20 hours ahead
Galaxy PGC 977991 TYC 5549-1042-1 TYC 5549-447-1 below path Day 1 about 20 hours ahead - Day 1 about four hours past. Note HIP 67112

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/10/28 387,995,123 (decrease)
Earth Distance 2021/10/27 388,341,085 (decrease)
Earth Distance 2021/10/26 388,641,263 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 256 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 256 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 November 8th on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

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

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

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

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

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

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

Month 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1230 2021-10-29 06:04:59

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/06  Friday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/10/29 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: 4 <<== The Astronomical month will increment when longitude reaches 120 degrees

Solar Longitude: 119.3 Sol Number: 257  Change in degrees is +.5
Previous SL:      118.8 Previous Sol:256

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:   240,880,346 km [22.8 km/s] Difference is -139499 <= 6065 km/hour at 7.0 on 10/29 (time:7.00)
Distance: Mars >> Sun per theskylive.com:   241,019,845 km [22.8 km/s] Difference is -144790 <= 6033 km/hour at 8.0 on 10/28 (time:8.00)
Distance: Mars >> Sun per theskylive.com:   241,164,635 km [22.8 km/s] Difference is -134511 <= 5978 km/hour at 8.0 on 10/27 (time:8.00)

Next up: Another pair: Galaxy PGC 971602 RA 13h 49m 33.5s Star TYC 5556-1218-1 Mg 10.09 Day 0 about 18 hours ahead
Star TYC 5557-738-1 Magnitude 10.62 below Galaxy PGC 975688 Day 0 about 20 hours ahead of Mars - Day 1 about 4 hours past
Galaxy PGC 975688 RA 13h 47m 54.5s in path Day 0 about 20 hours ahead  - Day 1 about 4 hours past

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/10/29 387,659,293 (decrease)
Earth Distance 2021/10/28 387,995,123 (decrease)
Earth Distance 2021/10/27 388,341,085 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 257 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 257 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 November 8th on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
The next cycle will begin on the first Sol after the end of the 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1231 2021-10-30 07:40:46

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/07  Saturday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/10/30 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One day note: We are on the verge of changing to Month 5 in the astronomical calendar

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

Martian Year: 36  Martian Month in 12 month format: 4 <<== The Astronomical month will increment when longitude reaches 120 degrees

Solar Longitude: 119.7 Sol Number: 258  Change in degrees is +.4
Previous SL:      119.3 Previous Sol:257

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:   240,721,313 km [22.8 km/s] Difference is -159033 <= 6117 km/hour at 9.0 on 10/30 (time:9.00)
Distance: Mars >> Sun per theskylive.com:   240,880,346 km [22.8 km/s] Difference is -139499 <= 6065 km/hour at 7.0 on 10/29 (time:7.00)
Distance: Mars >> Sun per theskylive.com:   241,019,845 km [22.8 km/s] Difference is -144790 <= 6033 km/hour at 8.0 on 10/28 (time:8.00)

Next up: Star 5556-725-1 Magnitude 11.95 above path aout 10 hours ahead on Day 0
Next up: Galaxy PGC 969907 below path RA 13h 52m 22.8s about 14 hours ahead on Day 0
Galaxy PGC 971602 RA 13h 49m 33.5s Star TYC 5556-1218-1 Mg 10.09 Day 0 about 18 hours ahead - Day 1 about 10 hours past

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/10/30 387,279,624 (decrease)
Earth Distance 2021/10/29 387,659,293 (decrease)
Earth Distance 2021/10/28 387,995,123 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 258 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 258 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 November (estimate: 8th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1232 2021-10-31 08:02:45

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/08  Sunday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/10/31 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One Day Note: The astronomical calendar advanced from 4 to 5 over the past Sol

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

Martian Year: 36  Martian Month in 12 month format: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 120.2 Sol Number: 259  Change in degrees is +.5
Previous SL:      119.7 Previous Sol:258

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:   240,570,236 km [22.8 km/s] Difference is -151077 <= 6166 km/hour at 9.5 on 10/31 (time:9.31)
Distance: Mars >> Sun per theskylive.com:   240,721,313 km [22.8 km/s] Difference is -159033 <= 6117 km/hour at 9.0 on 10/30 (time:9.00)
Distance: Mars >> Sun per theskylive.com:   240,880,346 km [22.8 km/s] Difference is -139499 <= 6065 km/hour at 7.0 on 10/29 (time:7.00)

Next up: Star TYC 5556-589-1 Magnitude 11.25 Day 0 below path about 10 hours ahead
Next up: Galaxy PGC 968409 above path RA 13h 55m 12.1s Day 0 about 13 hours ahead
Star 5556-725-1 Magnitude 11.95 above path about 10 hours ahead on Day 0 - Day 1 about 14 hours past
Galaxy PGC 969907 below path RA 13h 52m 22.8s about 14 hours ahead on Day 0 - Day 1 about 11 hours past

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/10/31 386,906,295 (decrease)
Earth Distance 2021/10/30 387,279,624 (decrease)
Earth Distance 2021/10/29 387,659,293 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 259 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 259 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 November (estimate: 8th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.
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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1233 2021-11-01 06:52:03

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/09  Monday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/11/01 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 120.7 Sol Number: 260  Change in degrees is +.5
Previous SL:      120.2 Previous Sol:259

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:   240,427,560 km [22.8 km/s] Difference is -142676 <= 6203 km/hour at 8.5 on 11/01 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   240,570,236 km [22.8 km/s] Difference is -151077 <= 6166 km/hour at 9.5 on 10/31 (time:9.31)
Distance: Mars >> Sun per theskylive.com:   240,721,313 km [22.8 km/s] Difference is -159033 <= 6117 km/hour at 9.0 on 10/30 (time:9.00)

Next up: 5 galaxies in a lion shaped pattern: PGC 105488 RA 13h 57m 29.9s below path Day 0 about 10 hours ahead
Next up: A pair: Star TYC 5557-1010-1 M10.7 above TYC 557-447.1 M10.17 below path Day 0 about 14 hours ahead
Star TYC 5556-589-1 Magnitude 11.25 Day 0 below path about 10 hours ahead  - Day 1 about 10 hours behind
Galaxy PGC 968409 above path RA 13h 55m 12.1s Day 0 about 13 hours ahead - Day 1 about 10 hours behind

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/01 386,550,345 (decrease)
Earth Distance 2021/10/31 386,906,295 (decrease)
Earth Distance 2021/10/30 387,279,624 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 260 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 260 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 November (estimate: 8th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1234 2021-11-02 08:23:31

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/10  Tuesday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/11/02 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 121.1 Sol Number: 261  Change in degrees is +.4
Previous SL:      120.7 Previous Sol:260

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:   240,274,917 km [22.8 km/s] Difference is -152643 <= 6230 km/hour at 9.0 on 11/02 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   240,427,560 km [22.8 km/s] Difference is -142676 <= 6203 km/hour at 8.5 on 11/01 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   240,570,236 km [22.8 km/s] Difference is -151077 <= 6166 km/hour at 9.5 on 10/31 (time:9.31)

In the past day (or so) TheSkyLive.com has lost synchronization between the object and the background.
Mars is reported at coordinates that are below and to the left of the background view. Reported 2021/11/02
Object information is still reported, but without formatting of numbers, and the km/s value is missing.
A software update may have occurred.  The problem was reported to TheSkyLive via their feedback link.

5 galaxies in a lion shaped pattern: PGC 105488 RA 13h 57m 29.9s below path Day 0 about 10 hours ahead - in view on Day 1
Star TYC 5557-1010-1 M10.7 above TYC 557-447.1 M10.17 below path Day 0 about 14 hours ahead - Day 1 in view

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/02 386,165,941 (decrease)
Earth Distance 2021/11/01 386,550,345 (decrease)
Earth Distance 2021/10/31 386,906,295 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 261 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 261 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 November (estimate: 8th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1235 2021-11-03 06:36:35

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/11  Wednesday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/11/03 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 121.6 Sol Number: 262  Change in degrees is +.5
Previous SL:      121.1 Previous Sol:261

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:   240,133,032 km [22.9 km/s] Difference is -141885 <= 6306 km/hour at 7.5 on 11/03 (time:7:30)
Distance: Mars >> Sun per theskylive.com:   240,274,917 km [22.8 km/s] Difference is -152643 <= 6230 km/hour at 9.0 on 11/02 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   240,427,560 km [22.8 km/s] Difference is -142676 <= 6203 km/hour at 8.5 on 11/01 (time:8:30)

One Day note: TheSkyLive.com has corrected whatever problem was interfering with coordinated display of Mars against the star field

Next up: a mini-Boomer: HIP 68573 Magnitude 8.63 below path Day 0 about 12 hours ahead

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/03 385,781,991 (decrease)
Earth Distance 2021/11/02 386,165,941 (decrease)
Earth Distance 2021/11/01 386,550,345 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 262 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 262 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 November (estimate: 8th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1236 2021-11-04 07:43:27

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/12  Thursday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/11/04 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 122.1 Sol Number: 263  Change in degrees is +.5
Previous SL:      121.6 Previous Sol:262

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:   239,977,838 km [22.9 km/s] Difference is -155194 <= 6334 km/hour at 8.0 on 11/04 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   240,133,032 km [22.9 km/s] Difference is -141885 <= 6306 km/hour at 7.5 on 11/03 (time:7:30)
Distance: Mars >> Sun per theskylive.com:   240,274,917 km [22.8 km/s] Difference is -152643 <= 6230 km/hour at 9.0 on 11/02 (time:9:00)

Next up: Four galaxies just above path: PGC 119081, 955038, 126187, 954762 - about 20 hours ahead on Day 0
HIP 68573 Magnitude 8.63 below path Day 0 about 12 hours ahead - Day 1 Right at Edge of View - about 14 hours behind

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/04 385,362,530 (decrease)
Earth Distance 2021/11/03 385,781,991 (decrease)
Earth Distance 2021/11/02 386,165,941 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 263 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 263 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 November (estimate: 8th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1237 2021-11-05 06:46:58

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/13  Friday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/11/05 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 122.5 Sol Number: 264  Change in degrees is +.4
Previous SL:      122.1 Previous Sol:263

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:   239,831,308 km [22.9 km/s] Difference is -146470 <= 6368 km/hour at 7.0 on 11/05 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   239,977,838 km [22.9 km/s] Difference is -155194 <= 6334 km/hour at 8.0 on 11/04 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   240,133,032 km [22.9 km/s] Difference is -141885 <= 6306 km/hour at 7.5 on 11/03 (time:7:30)

Next up: mini-Boomer HIP 69082 Magnitude 7.71 just below path Day 0 about 20 hours ahead
Four galaxies just above path: PGC 119081, 955038, 126187, 954762 - about 20 hours ahead on Day 0 - Day 1 about 4 hours past

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/05 384,970,266 (decrease)
Earth Distance 2021/11/04 385,362,530 (decrease)
Earth Distance 2021/11/03 385,781,991 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 264 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 264 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 November (estimate: 8th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1238 2021-11-06 07:29:27

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/14  Saturday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/11/06 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 123.0 Sol Number: 265  Change in degrees is +.5
Previous SL:      122.5 Previous Sol:264

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:   239,664,577 km [22.9 km/s] Difference is -166791 <= 6415 km/hour at 9.0 on 11/06 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   239,831,308 km [22.9 km/s] Difference is -146470 <= 6368 km/hour at 7.0 on 11/05 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   239,977,838 km [22.9 km/s] Difference is -155194 <= 6334 km/hour at 8.0 on 11/04 (time:8:00)

Next up: We have an asterism of six bright stars below the path and about 15 hours ahead on Day 0
TYC 5561-272-1 5561-165-1 5561-65-1 5561-88-1 5561-59-1 5561-1310-1
HIP 69082 Magnitude 7.71 just below path Day 0 about 20 hours ahead - Day 1 about 5 hours past

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/06 384,543,954 (decrease)
Earth Distance 2021/11/05 384,970,266 (decrease)
Earth Distance 2021/11/04 385,362,530 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 265 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 265 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 November (estimate: 8th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1239 2021-11-07 07:44:21

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/15  Sunday <<-- Days of the week are ** IN ** alignment with Earth. The next skip day is in November on Earth.

Today on Earth: 2021/11/07 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 123.5 Sol Number: 266  Change in degrees is +.5
Previous SL:      123.0 Previous Sol:265

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:   239,509,611 km [22.9 km/s] Difference is -154966 <= 6457 km/hour at 8.0(DST) on 11/07 (time:8:00)DST
*** Of Course! Daylight Savings Time -- Fall back in Fall -- By adjusting the time used for the computation, we get 6457
*** The km/hour computation is failing on November 7, 2021 ... the rate should have been ~6450 or so, but it is showing a higher value
Distance: Mars >> Sun per theskylive.com:   239,664,577 km [22.9 km/s] Difference is -166731 <= 6413 km/hour at 9.0 on 11/06 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   239,831,308 km [22.9 km/s] Difference is -146530 <= 6370 km/hour at 7.0 on 11/05 (time:7:00)

Next up: mini-Boomer HIP 69486 Magnitude 9.18 just above path Day 0 about 15 hours ahead
We have an asterism of six bright stars below the path and about 15 hours ahead on Day 0  - Day 1 about 14 hours behind
TYC 5561-272-1 5561-165-1 5561-65-1 5561-88-1 5561-59-1 5561-1310-1

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/07 384,111,450 (decrease)
Earth Distance 2021/11/06 384,543,954 (decrease)
Earth Distance 2021/11/05 384,970,266 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 266 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 266 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 November (estimate: 8th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1240 2021-11-08 09:22:05

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/15  Sunday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/11/08 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One day note: Today is a Skip Day on Mars: November 8th on Earth

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

Martian Year: 36  Martian Month in 12 month format: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 124.0 Sol Number: 266  Change in degrees is +.5
Previous SL:      123.5 Previous Sol:266 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.

Distance: Mars >> Sun per theskylive.com:   239,350,378 km [22.9 km/s] Difference is -159233 <= 6499 km/hour at 8.5 on 11/08 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   239,509,611 km [22.9 km/s] Difference is -154966 <= 6457 km/hour at 8.0(DST) on 11/07 (time:8:00)DST
*** Of Course! Daylight Savings Time -- Fall back in Fall -- By adjusting the time used for the computation, we get 6457
*** The km/hour computation is failing on November 7, 2021 ... the rate should have been ~6450 or so, but it is showing a higher value
Distance: Mars >> Sun per theskylive.com:   239,664,577 km [22.9 km/s] Difference is -166731 <= 6413 km/hour at 9.0 on 11/06 (time:9:00)

Next up: a pair above and below: TYC 5565-195-1 above TYC 5561-207-1 below Day 0 about 10 hours ahead
HIP 69486 Magnitude 9.18 just above path Day 0 about 15 hours ahead Day 1 about 10 hours behind

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/08 383,649,358 (decrease)
Earth Distance 2021/11/07 384,111,450 (decrease)
Earth Distance 2021/11/06 384,543,954 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 266 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 266 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 December (estimate: 15th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1241 2021-11-09 08:39:51

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/16  Monday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/11/09 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 124.4 Sol Number: 267  Change in degrees is +.4
Previous SL:      124.0 Previous Sol:266 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.

Distance: Mars >> Sun per theskylive.com:   239,196,654 km [23.0 km/s] Difference is -153724 <= 6541 km/hour at 8.0 on 11/09 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   239,350,378 km [22.9 km/s] Difference is -159233 <= 6499 km/hour at 8.5 on 11/08 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   239,509,611 km [22.9 km/s] Difference is -154966 <= 6457 km/hour at 8.0(DST) on 11/07 (time:8:00)DST

Next up: TYC 5574-301-1 Magnitude 10.50 below path Day 0 about 10 hours ahead
TYC 5565-195-1 above TYC 5561-207-1 below Day 0 about 10 hours ahead - Day 1 about 13 hours behind

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/09 383,219,383 (decrease)
Earth Distance 2021/11/08 383,649,358 (decrease)
Earth Distance 2021/11/07 384,111,450 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 267 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 267 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 December (estimate: 15th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1242 2021-11-10 06:28:51

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/17  Tuesday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/11/10 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 124.9 Sol Number: 268  Change in degrees is +.5
Previous SL:      124.4 Previous Sol:267

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:   239,045,326 km [23.0 km/s] Difference is -151328 <= 6579 km/hour at 7.0 on 11/10 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   239,196,654 km [23.0 km/s] Difference is -153724 <= 6541 km/hour at 8.0 on 11/09 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   239,350,378 km [22.9 km/s] Difference is -159233 <= 6499 km/hour at 8.5 on 11/08 (time:8:30)

Next up: TYC 5574-518-1 Magnitude 11.1 well below path Day 0 about 13 hours ahead
Note Boomer in the view: HIP 68864 Magnitude 4.51 Above and about 5 hours past Mars
TYC 5574-301-1 Magnitude 10.50 below path Day 0 about 10 hours ahead - Day 1 - About 10 hours behind

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/10 382,810,178 (decrease)
Earth Distance 2021/11/09 383,219,383 (decrease)
Earth Distance 2021/11/08 383,649,358 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 268 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 268 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 December (estimate: 15th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1243 2021-11-11 07:22:00

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/18  Wednesday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/11/11 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 125.4 Sol Number: 269  Change in degrees is +.5
Previous SL:      124.9 Previous Sol:268

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:   238,879,972 km [23.0 km/s] Difference is -165354 <= 6614 km/hour at 8.0 on 11/11 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   239,045,326 km [23.0 km/s] Difference is -151328 <= 6579 km/hour at 7.0 on 11/10 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   239,196,654 km [23.0 km/s] Difference is -153724 <= 6541 km/hour at 8.0 on 11/09 (time:8:00)

Next up: Mini-Boomer HIP 70440 Magnitude 7.20 below path Day 0 about 20 hours ahead
TYC 5574-518-1 Magnitude 11.1 well below path Day 0 about 13 hours ahead - Day 1 out of view

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/11 382,335,571 (decrease)
Earth Distance 2021/11/10 382,810,178 (decrease)
Earth Distance 2021/11/09 383,219,383 (decrease)

Mars and Earth are moving apart after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 269 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 269 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 December (estimate: 15th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1244 2021-11-12 07:26:13

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/19 Thursday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/11/12 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 125.9 Sol Number: 270  Change in degrees is +.4
Previous SL:      125.4 Previous Sol:269

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:   238,726,880 km [23.0 km/s] Difference is -153092 <= 6656 km/hour at 7.0 on 11/12 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   238,879,972 km [23.0 km/s] Difference is -165354 <= 6614 km/hour at 8.0 on 11/11 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   239,045,326 km [23.0 km/s] Difference is -151328 <= 6579 km/hour at 7.0 on 11/10 (time:7:00)

Next up: a pair of galaxies just below path: PGC 927844 and 927269 RA 14h 26m 42.3s - Day 0 about 20 hours ahead
HIP 70440 Magnitude 7.20 below path Day 0 about 20 hours ahead - Day 1 just below Mars

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/12 381,869,019 (decrease)
Earth Distance 2021/11/11 382,335,571 (decrease)
Earth Distance 2021/11/10 382,810,178 (decrease)

Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun. 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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 270 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 270 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 December (estimate: 15th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1245 2021-11-13 08:35:57

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/20 Friday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/11/13 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 126.3 Sol Number: 271  Change in degrees is +.4
Previous SL:      125.9 Previous Sol:270

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:   238,552,781 km [23.0 km/s] Difference is -174099 <= 6696 km/hour at 9.0 on 11/13 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   238,726,880 km [23.0 km/s] Difference is -153092 <= 6656 km/hour at 7.0 on 11/12 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   238,879,972 km [23.0 km/s] Difference is -165354 <= 6614 km/hour at 8.0 on 11/11 (time:8:00)

Next up: trio of tychos: TYC 5575-947-1 TYC 5575-648-1 TYC 5575-233-1 above path Day 0 about 18 hours ahead
Next up: micro-Boomer: HIP 70739 Magnitude 8.93 below path Day 0 about 6 hours ahead
PGC 927844 and 927269 RA 14h 26m 42.3s - Day 0 about 20 hours ahead - Day 1 about 6 hours behind (24+2=20+6) On the money

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/13 381,372,214 (decrease)
Earth Distance 2021/11/12 381,869,019 (decrease)
Earth Distance 2021/11/11 382,335,571 (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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 271 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 271 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 December (estimate: 15th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1246 2021-11-14 07:30:03

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/21 Saturday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/11/14 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 126.8 Sol Number: 274  Change in degrees is +.5
Previous SL:      126.3 Previous Sol:271

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:   238,397,877 km [23.0 km/s] Difference is -154904 <= 6734 km/hour at 8.0 on 11/14 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   238,552,781 km [23.0 km/s] Difference is -174099 <= 6696 km/hour at 9.0 on 11/13 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   238,726,880 km [23.0 km/s] Difference is -153092 <= 6656 km/hour at 7.0 on 11/12 (time:7:00)

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
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
Next up - TYC 5575-790-1 Magnitude 12.18 just below path Day 0 about 10 hours ahead
Next up - not much: Note micro-Boomer below path: HIP 70934 Magnitude 9.68 Day 0 about 6 hours ahead
TYC 5575-947-1 TYC 5575-648-1 TYC 5575-233-1 above path Day 0 about 18 hours ahead - Day 1 about 6 hours behind
HIP 70739 Magnitude 8.93 below path Day 0 about 6 hours ahead - Day 1 out of view

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/14 380,912.715 (decrease)
Earth Distance 2021/11/13 381,372,214 (decrease)
Earth Distance 2021/11/12 381,869,019 (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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 272 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 272 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 December (estimate: 15th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1247 2021-11-15 07:28:47

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/22 Sunday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/11/15 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 127.3 Sol Number: 273  Change in degrees is +.5
Previous SL:      126.8 Previous Sol:272

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:   238,238,715 km [23.1 km/s] Difference is -159162 <= 6773 km/hour at 7.5 on 11/15 (time:7:30)
Distance: Mars >> Sun per theskylive.com:   238,397,877 km [23.0 km/s] Difference is -154904 <= 6734 km/hour at 8.0 on 11/14 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   238,552,781 km [23.0 km/s] Difference is -174099 <= 6696 km/hour at 9.0 on 11/13 (time:9:00)

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

Next up: A pair of Tychos: TYC 5576-210-1 Magnitude 10.25 TYC 5576-220-1 Magnitude 11.81 bracket path Day 0 about 15 hours ahead
TYC 5575-790-1 Magnitude 12.18 just below path Day 0 about 10 hours ahead - Day 1 about 14 hours behind

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/15 380,424,414 (decrease)
Earth Distance 2021/11/14 380,912.715 (decrease)
Earth Distance 2021/11/13 381,372,214 (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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 273 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 273 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 December (estimate: 15th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1248 2021-11-16 08:42:08

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/23 Monday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/11/16 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 127.8 Sol Number: 274  Change in degrees is +.5
Previous SL:      127.3 Previous Sol:273

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:   238,065,056 km [23.1 km/s] Difference is -173659 <= 6810 km/hour at 9.0 on 11/16 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   238,238,715 km [23.1 km/s] Difference is -159162 <= 6773 km/hour at 7.5 on 11/15 (time:7:30)
Distance: Mars >> Sun per theskylive.com:   238,397,877 km [23.0 km/s] Difference is -154904 <= 6734 km/hour at 8.0 on 11/14 (time:8:00)

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

Next up: A trio in path TYC 5576-896-1 M11.25 TYC 5576-701-1 M10.71 TYC 5576-843-1 M11.72 Day 0 about 10 hours ahead
TYC 5576-210-1 Magnitude 10.25 TYC 5576-220-1 Magnitude 11.81 bracket path Day 0 about 15 hours ahead - Day 1 About 10 hours behind

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/16 379,903,415 (decrease)
Earth Distance 2021/11/15 380,424,414 (decrease)
Earth Distance 2021/11/14 380,912.715 (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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 274 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 274 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 December (estimate: 15th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1249 2021-11-17 07:58:45

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/24 Tuesday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/11/17 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 128.2 Sol Number: 275  Change in degrees is +.4
Previous SL:      127.8 Previous Sol:274

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:   237,903,337 km [23.1 km/s] Difference is -161719 <= 6853 km/hour at 8.6 on 11/17 (time:8:36)
Distance: Mars >> Sun per theskylive.com:   238,065,056 km [23.1 km/s] Difference is -173659 <= 6810 km/hour at 9.0 on 11/16 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   238,238,715 km [23.1 km/s] Difference is -159162 <= 6773 km/hour at 7.5 on 11/15 (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: Not Much! TYC 6153-696-1 Magnitude 11.05 just above path Day 0 5 hours ahead
TYC 5576-896-1 M11.25 TYC 5576-701-1 M10.71 TYC 5576-843-1 M11.72 Day 0 about 10 hours ahead

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/17 379,415,797 (decrease)
Earth Distance 2021/11/16 379,903,415 (decrease)
Earth Distance 2021/11/15 380,424,414 (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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 275 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 275 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 December (estimate: 15th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

#1250 2021-11-18 07:17:44

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,759

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

Today on Mars: 0036/10/25 Wednesday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/11/18 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: 5 <<== The Astronomical month will increment when longitude reaches 150 degrees

Solar Longitude: 128.7 Sol Number: 276  Change in degrees is +.5
Previous SL:      128.2 Previous Sol:275

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:   237,742,357 km [23.1 km/s] Difference is -160980 <= 6879 km/hour at 8.0 on 11/18 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   237,903,337 km [23.1 km/s] Difference is -161719 <= 6853 km/hour at 8.6 on 11/17 (time:8:36)
Distance: Mars >> Sun per theskylive.com:   238,065,056 km [23.1 km/s] Difference is -173659 <= 6810 km/hour at 9.0 on 11/16 (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: A pair of galaxies bracketing the path: PGC 912126 above PGC 910684 below Day 0 about 15 hours ahead
HIP 71715 Magnitude 9.22 in path Day 0 about 15 hours ahead - Day 1 about 5 hours behind
TYC 6153-696-1 Magnitude 11.05 just above path Day 0 5 hours ahead Day 1 out of view

As a general observation ... In recent days I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
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 2021/11/18 378,916,799 (decrease)
Earth Distance 2021/11/17 379,415,797 (decrease)
Earth Distance 2021/11/16 379,903,415 (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 20 and 21 minutes. Communications delay would be 40+ minutes round trip. [20:360,000,000][21:390,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

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

Sol 276 is in Month 10 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  10 extends from Sol 252 through 279. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 09
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 276 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 December (estimate: 15th) 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 10 of 24: - Quarter 2 of 4 [Months 7-12] (This month has 28 days)

Offline

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