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#1276 2021-12-11 07:51:08

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/11/20 Friday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/12/11 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 139.9 Sol Number: 299  Change in degrees is +.5
Previous SL:      139.4 Previous Sol:298

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:   233,724,643 km [23.5 km/s] Difference is -190009 <= 7600 km/hour at 8.0 on 12/11 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   233,914,652 km [23.5 km/s] Difference is -174174 <= 7573 km/hour at 7.0 on 12/10 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   234,088,826 km [23.5 km/s] Difference is -181127 <= 7547 km/hour at 8.0 on 12/09 (time:8:00)

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

Next up: a pair in line below path: TYC 6194-1088-1 Mg 11.22 TYC 6194-895-1 Mg 12.30 Day 0 about 18 hours ahead
TYC 6193-1486-1 Magnitude 10.77 just below path and about 10 hours ahead on Day 0 - Day 1 out of view

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

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 2021/12/11 365,178,285 (decrease)
Earth Distance 2021/12/10 365,849,701 (decrease)
Earth Distance 2021/12/09 366,512,069 (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 299 is in Month 11 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  11 extends from Sol 280 through 307. 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 299 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 11 of 24: Quarter 2 of 4 [Months 7-12] (This month has 28 Sols)

Online

#1277 2021-12-12 06:21:09

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/11/21 Saturday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/12/12 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 140.4 Sol Number: 300  Change in degrees is +.5
Previous SL:      139.9 Previous Sol:299

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:   233,549,304 km [23.5 km/s] Difference is -175339 <= 7623 km/hour at 7.0 on 12/12 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   233,724,643 km [23.5 km/s] Difference is -190009 <= 7600 km/hour at 8.0 on 12/11 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   233,914,652 km [23.5 km/s] Difference is -174174 <= 7573 km/hour at 7.0 on 12/10 (time:7:00)

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

Next up: Vertical stack above and below TYC 6194-999-1 TYC 6194-1612-1 TYC 6194-7220-1 TYC 6194-295-1 about 20 hours ahead
TYC 6194-1088-1 Mg 11.22 TYC 6194-895-1 Mg 12.30 Day 0 about 18 hours ahead - Day 1 About 4 hours behind

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

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

Earth Distance 2021/12/12 364,536,721 (decrease)
Earth Distance 2021/12/11 365,178,285 (decrease)
Earth Distance 2021/12/10 365,849,701 (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 300 is in Month 11 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  11 extends from Sol 280 through 307. 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 300 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 11 of 24: Quarter 2 of 4 [Months 7-12] (This month has 28 Sols)

Online

#1278 2021-12-13 07:59:46

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/11/22 Sunday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/12/13 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 140.9 Sol Number: 301  Change in degrees is +.5
Previous SL:      140.4 Previous Sol:300

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:   233,353,486 km [23.6 km/s] Difference is -195816 <= 7649 km/hour at 8.6 on 12/13 (time 8:36)
Distance: Mars >> Sun per theskylive.com:   233,549,304 km [23.5 km/s] Difference is -175339 <= 7623 km/hour at 7.0 on 12/12 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   233,724,643 km [23.5 km/s] Difference is -190009 <= 7600 km/hour at 8.0 on 12/11 (time:8:00)

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

Next up: TYC 6195-03-1 Magnitude 11.09 RA 15h 52m 17.1s below path Day 0 about 15 hours ahead
Vertical stack above and below TYC 6194-999-1 TYC 6194-1612-1 TYC 6194-722-1 TYC 6194-295-1 about 20 hours ahead - Day 1 about 7 behind

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

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

Earth Distance 2021/12/13 363,806,924 (decrease)
Earth Distance 2021/12/12 364,536,721 (decrease)
Earth Distance 2021/12/11 365,178,285 (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 301 is in Month 11 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  11 extends from Sol 280 through 307. 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 301 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 11 of 24: Quarter 2 of 4 [Months 7-12] (This month has 28 Sols)

Online

#1279 2021-12-14 08:08:45

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/11/23 Monday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/12/14 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 141.4 Sol Number: 302  Change in degrees is +.5
Previous SL:      140.9 Previous Sol:301

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:   233,170,004 km [23.6 km/s] Difference is -183482 <= 7677 km/hour at 8.5 on 12/14 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   233,353,486 km [23.6 km/s] Difference is -195816 <= 7649 km/hour at 8.6 on 12/13 (time 8:36)
Distance: Mars >> Sun per theskylive.com:   233,549,304 km [23.5 km/s] Difference is -175339 <= 7623 km/hour at 7.0 on 12/12 (time:7:00)

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

Next up: A pair of stars just above path: TYC 6195-776-1 Mg 10.05 and TYC 6195-725-1 Mg 9.33 Day 0 about 12 hours ahead
Note mini-Boomer at Mars: HIP 77811 Magnitude 5.04
TYC 6195-03-1 Magnitude 11.09 RA 15h 52m 17.1s below path Day 0 about 15 hours ahead - Day 1 about 9 hours behind

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

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 2021/12/14 363,114,048 (decrease)
Earth Distance 2021/12/13 363,806,924 (decrease)
Earth Distance 2021/12/12 364,536,721 (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 302 is in Month 11 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  11 extends from Sol 280 through 307. 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 302 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 11 of 24: Quarter 2 of 4 [Months 7-12] (This month has 28 Sols)

Online

#1280 2021-12-15 09:07:50

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

One day note: Today is a skip day for the Business Calendar for Mars

Today on Mars: 0036/11/23 Monday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/12/15 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 141.9 Sol Number: 302  Change in degrees is +.5
Previous SL:      141.4 Previous Sol:302 <<== 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:   232,985,261 km [23.6 km/s] Difference is -184743 <= 7698 km/hour at 8.5 on 12/15 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   233,170,004 km [23.6 km/s] Difference is -183482 <= 7677 km/hour at 8.5 on 12/14 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   233,353,486 km [23.6 km/s] Difference is -195816 <= 7649 km/hour at 8.6 on 12/13 (time 8:36)

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: Galaxy below path ESO 583-9 Magnitude 15.40 RA 15h 58m 20.2s about 15 hours ahead on Day 0
TYC 6195-776-1 Mg 10.05 and TYC 6195-725-1 Mg 9.33 Day 0 about 12 hours ahead - Day 1 Still in view but just barely. More than 9 hours past

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

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

Earth Distance 2021/12/15 362,394,351 (decrease)
Earth Distance 2021/12/14 363,114,048 (decrease)
Earth Distance 2021/12/13 363,806,924 (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 302 is in Month 11 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  11 extends from Sol 280 through 307. 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 302 is Monday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

Month 11 of 24: Quarter 2 of 4 [Months 7-12] (This month has 28 Sols)

Online

#1281 2021-12-16 07:53:06

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/11/24 Tuesday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/12/16 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 142.4 Sol Number: 303  Change in degrees is +.5
Previous SL:      141.9 Previous Sol:302 <<== 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:   232,803,899 km [23.6 km/s] Difference is -181362 <= 7718 km/hour at 8.0 on 12/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   232,985,261 km [23.6 km/s] Difference is -184743 <= 7698 km/hour at 8.5 on 12/15 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   233,170,004 km [23.6 km/s] Difference is -183482 <= 7677 km/hour at 8.5 on 12/14 (time 8:30)

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

Next up: Star TYC 6212-195-1 Magnitude 10.83 Day 0 below path about 18 hours ahead
Galaxy below path ESO 583-9 Magnitude 15.40 RA 15h 58m 20.2s about 15 hours ahead on Day 0 - Day 1 about 6 hours past Mars

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

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 2021/12/16 361,725,059 (decrease)
Earth Distance 2021/12/15 362,394,351 (decrease)
Earth Distance 2021/12/14 363,114,048 (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 303 is in Month 11 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  11 extends from Sol 280 through 307. 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 303 is Tuesday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

Month 11 of 24: Quarter 2 of 4 [Months 7-12] (This month has 28 Sols)

Online

#1282 2021-12-17 07:19:06

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/11/25 Wednesday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/12/17 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 142.9 Sol Number: 304  Change in degrees is +.5
Previous SL:      142.4 Previous Sol:303

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:   232,625,823 km [23.6 km/s] Difference is -178076 <= 7742 km/hour at 7.0 on 12/17 (time 7:00)
Distance: Mars >> Sun per theskylive.com:   232,803,899 km [23.6 km/s] Difference is -181362 <= 7718 km/hour at 8.0 on 12/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   232,985,261 km [23.6 km/s] Difference is -184743 <= 7698 km/hour at 8.5 on 12/15 (time 8:30)

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

Next up: TYC 6212-414-1 Magnitude 11.23 Day 0 below path and about 15 hours ahead
Star TYC 6212-195-1 Magnitude 10.83 Day 0 below path about 18 hours ahead - Day 1 about 7 hours past Mars

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

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 2021/12/17 361,033,498 (decrease)
Earth Distance 2021/12/16 361,725,059 (decrease)
Earth Distance 2021/12/15 362,394,351 (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 304 is in Month 11 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  11 extends from Sol 280 through 307. 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 304 is Wednesday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

Month 11 of 24: Quarter 2 of 4 [Months 7-12] (This month has 28 Sols)

Online

#1283 2021-12-18 08:53:15

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/11/26 Thursday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/12/18 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 143.4 Sol Number: 305  Change in degrees is +.5
Previous SL:      142.9 Previous Sol:304

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:   232,432,720 km [23.7 km/s] Difference is -194103 <= 7764 km/hour at 8.0 on 12/18 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   232,625,823 km [23.6 km/s] Difference is -178076 <= 7742 km/hour at 7.0 on 12/17 (time 7:00)
Distance: Mars >> Sun per theskylive.com:   232,803,899 km [23.6 km/s] Difference is -181362 <= 7718 km/hour at 8.0 on 12/16 (time 8:00)

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

Next up: TYC 6212-189-1 Magnitude 10.84 below path and about 9 hours ahead on Day 0
Note Boomer on the scene today! HIP 78933 Magnitude 3.95 above and ahead of Mars
TYC 6212-414-1 Magnitude 11.23 Day 0 below path and about 15 hours ahead -Day 1: About 12 hours past Mars

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

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 2021/12/18 360,275,073 (decrease) << Close to 360,000,000 Time for Travel Update
Earth Distance 2021/12/17 361,033,498 (decrease)
Earth Distance 2021/12/16 361,725,059 (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 305 is in Month 11 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  11 extends from Sol 280 through 307. 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 305 is Thursday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

Month 11 of 24: Quarter 2 of 4 [Months 7-12] (This month has 28 Sols)

Online

#1284 2021-12-19 07:51:00

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/11/27 Friday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

Today on Earth: 2021/12/19 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 143.9 Sol Number: 306  Change in degrees is +.5
Previous SL:      143.4 Previous Sol:305

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:   232,244,862 km [23.7 km/s] Difference is -186858 <= 7786 km/hour at 8.0 on 12/19 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   232,432,720 km [23.7 km/s] Difference is -194103 <= 7764 km/hour at 8.0 on 12/18 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   232,625,823 km [23.6 km/s] Difference is -178076 <= 7742 km/hour at 7.0 on 12/17 (time 7:00)

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

Next up: TYC 6213-1385-1 Magnitude 11.48 just below path Day 0 about 15 hours ahead
TYC 6212-189-1 Magnitude 10.84 below path and about 9 hours ahead on Day 0 - Day 1 about 12 hours past Mars
Note new Boomer above and past Mars: HIP 78990 Magnitude 4.24 RA 16h 07m 7.2s
Note Boomer on the scene today! HIP 78933 Magnitude 3.95 above and ahead of Mars - Still visible on Day 1 at top of view

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

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

Earth Distance 2021/12/19 359,590,355 (decrease) << Dropped below 360,000,000
Earth Distance 2021/12/18 360,275,073 (decrease) << Close to 360,000,000 Time for Travel Update
Earth Distance 2021/12/17 361,033,498 (decrease)

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

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

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

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

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 306 is in Month 11 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  11 extends from Sol 280 through 307. 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 306 is Friday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

Month 11 of 24: Quarter 2 of 4 [Months 7-12] (This month has 28 Sols)

Online

#1285 2021-12-20 08:37:55

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/11/28 Saturday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in December on Earth.

One day note: This is the last day of Month 11

Today on Earth: 2021/12/20 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 144.4 Sol Number: 307  Change in degrees is +.5
Previous SL:      143.9 Previous Sol:306

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:   232,057,494 km [23.7 km/s] Difference is -187368 <= 7807 km/hour at 8.0 on 12/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   232,244,862 km [23.7 km/s] Difference is -186858 <= 7786 km/hour at 8.0 on 12/19 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   232,432,720 km [23.7 km/s] Difference is -194103 <= 7764 km/hour at 8.0 on 12/18 (time 8:00)

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

Next up: A quadrangle straddling the path: TYC 6213 [1571,1321,1319,1354] Day 0 about 20 hours ahead
TYC 6213-1385-1 Magnitude 11.48 just below path Day 0 about 15 hours ahead - Day 1 still in view at far right ... about 12 hours behind

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

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

Earth Distance 2021/12/20 358,841,771 (decrease)
Earth Distance 2021/12/19 359,590,355 (decrease) << Dropped below 360,000,000
Earth Distance 2021/12/18 360,275,073 (decrease) << Close to 360,000,000 Time for Travel Update

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

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

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

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

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 307 is in Month 11 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  11 extends from Sol 280 through 307. 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 307 is Saturday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

Month 11 of 24: Quarter 2 of 4 [Months 7-12] (This month has 28 Sols)

Online

#1286 2021-12-21 08:12:18

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/01 Sunday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

One day note: This is the first day of Month 12

Today on Earth: 2021/12/21 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 144.9 Sol Number: 308  Change in degrees is +.5
Previous SL:      144.4 Previous Sol:307

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:   231,869,621 km [23.7 km/s] Difference is -187873 <= 7828 km/hour at 8.0 on 12/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   232,057,494 km [23.7 km/s] Difference is -187368 <= 7807 km/hour at 8.0 on 12/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   232,244,862 km [23.7 km/s] Difference is -186858 <= 7786 km/hour at 8.0 on 12/19 (time 8:00)

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

Next up: A Galaxy: PGC 828368 RA 16h 16m 13.2s below path Day 0 about 18 hours ahead
TYC 6213 [1571,1321,1319,1354] Day 0 about 20 hours ahead -Day 1 about 5 hours behind

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

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

Earth Distance 2021/12/21 358,125,974 (decrease)
Earth Distance 2021/12/20 358,841,771 (decrease)
Earth Distance 2021/12/19 359,590,355 (decrease) << Dropped below 360,000,000

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

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

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

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

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

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1287 2021-12-22 07:43:25

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/02 Monday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2021/12/22 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: 145.4 Sol Number: 309  Change in degrees is +.5
Previous SL:      144.9 Previous Sol:308

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:   231,681,298 km [23.7 km/s] Difference is -188323 <= 7847 km/hour at 8.0 on 12/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   231,869,621 km [23.7 km/s] Difference is -187873 <= 7828 km/hour at 8.0 on 12/21 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   232,057,494 km [23.7 km/s] Difference is -187368 <= 7807 km/hour at 8.0 on 12/20 (time 8:00)

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

Next up: a micro-Boomer! HIP 79910 Magnitude 8.95 below path Day 0 about 15 hours ahead
Galaxy: PGC 828368 RA 16h 16m 13.2s below path Day 0 about 18 hours ahead - Day 1 about 5 hours behind

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

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

Earth Distance 2021/12/22 357,406,902 (decrease)
Earth Distance 2021/12/21 358,125,974 (decrease)
Earth Distance 2021/12/20 358,841,771 (decrease)

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

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

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

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

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 309 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 309 is Monday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1288 2021-12-23 07:38:39

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/03 Tuesday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2021/12/23 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: 145.9 Sol Number: 310  Change in degrees is +.5
Previous SL:      145.4 Previous Sol:309

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:   231,492,560 km [23.8 km/s] Difference is -188738 <= 7864 km/hour at 8.0 on 12/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   231,681,298 km [23.7 km/s] Difference is -188323 <= 7847 km/hour at 8.0 on 12/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   231,869,621 km [23.7 km/s] Difference is -187873 <= 7828 km/hour at 8.0 on 12/21 (time 8:00)

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

Next up: Galaxy in path: PGC 826640 RA 16h 21m 21.8s Day 0 about 12 hours ahead
HIP 79910 Magnitude 8.95 below path Day 0 about 15 hours ahead - Day 1 about 9 hours behind

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

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 2021/12/23 356,670,443 (decrease)
Earth Distance 2021/12/22 357,406,902 (decrease)
Earth Distance 2021/12/21 358,125,974 (decrease)

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

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

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

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

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 310 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 310 is Tuesday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1289 2021-12-24 07:26:50

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/04 Wednesday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2021/12/24 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: 146.5 Sol Number: 311  Change in degrees is +.6
Previous SL:      145.9 Previous Sol:310

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:   231,307,238 km [23.8 km/s] Difference is -185322 <= 7886 km/hour at 7.5 on 12/24 (time 7:30)
Distance: Mars >> Sun per theskylive.com:   231,492,560 km [23.8 km/s] Difference is -188738 <= 7864 km/hour at 8.0 on 12/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   231,681,298 km [23.7 km/s] Difference is -188323 <= 7847 km/hour at 8.0 on 12/22 (time 8:00)

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

Next up: Star TYC 6215-100-1 Magnitude 11.03 Well below path Day 0 about 12 hours ahead
PGC 826640 RA 16h 21m 21.8s Day 0 about 12 hours ahead - Day 1 about 12 hours behind

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

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

Earth Distance 2021/12/24 355,931,054 (decrease)
Earth Distance 2021/12/23 356,670,443 (decrease)
Earth Distance 2021/12/22 357,406,902 (decrease)

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

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

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

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

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 311 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 311 is Wednesday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1290 2021-12-25 10:57:00

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/05 Thursday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2021/12/25 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: 147.0 Sol Number: 312  Change in degrees is +.5
Previous SL:      146.5 Previous Sol:311

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:   231,089,965 km [23.8 km/s] Difference is -217273 <= 7900 km/hour at 11. on 12/26 (time 11:0)
Distance: Mars >> Sun per theskylive.com:   231,307,238 km [23.8 km/s] Difference is -185322 <= 7886 km/hour at 7.5 on 12/24 (time 7:30)
Distance: Mars >> Sun per theskylive.com:   231,492,560 km [23.8 km/s] Difference is -188738 <= 7864 km/hour at 8.0 on 12/23 (time 8:00)

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

Next up: Star in small tight cluster: TYC 6215-171-1 Magnitude 11.77 just below path Day 0 about 12 hours ahead
Star TYC 6215-100-1 Magnitude 11.03 Well below path Day 0 about 12 hours ahead - Day 1 out of view

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

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 2021/12/25 355,072,643 (decrease)
Earth Distance 2021/12/24 355,931,054 (decrease)
Earth Distance 2021/12/23 356,670,443 (decrease)

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

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

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

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

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 312 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 312 is Thursday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1291 2021-12-26 07:58:42

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/06 Friday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2021/12/26 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: 147.5 Sol Number: 313  Change in degrees is +.5
Previous SL:      147.0 Previous Sol:312

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:   230,923,640 km [23.8 km/s] Difference is -166325 <= 7920 km/hour at 8.0 on 12/26 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   231,089,965 km [23.8 km/s] Difference is -217273 <= 7900 km/hour at 11. on 12/25 (time 11:0)
Distance: Mars >> Sun per theskylive.com:   231,307,238 km [23.8 km/s] Difference is -185322 <= 7886 km/hour at 7.5 on 12/24 (time 7:30)

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

Next up: TYC 6215-490-1 Magnitude 12.01 below path Day 0 about 18 hours ahead
TYC 6215-171-1 Magnitude 11.77 just below path Day 0 about 12 hours ahead - Day 1 about 7 hours behind

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

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

Earth Distance 2021/12/26 354,410,528 (decrease)
Earth Distance 2021/12/25 355,072,643 (decrease)
Earth Distance 2021/12/24 355,931,054 (decrease)

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

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

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

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

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 313 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 313 is Friday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1292 2021-12-27 07:28:22

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/07 Saturday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2021/12/27 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: 148.0 Sol Number: 314  Change in degrees is +.5
Previous SL:      147.5 Previous Sol:313

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:   230,733,060 km [23.8 km/s] Difference is -190580 <= 7940 km/hour at 8.0 on 12/27 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   230,923,640 km [23.8 km/s] Difference is -166325 <= 7920 km/hour at 8.0 on 12/26 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   231,089,965 km [23.8 km/s] Difference is -217273 <= 7900 km/hour at 11. on 12/25 (time 11:0)

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

Next up: TYC 6228-1098-1 Magnitude 11.02 above path Day 0 about 12 hours ahead
TYC 6215-490-1 Magnitude 12.01 below path Day 0 about 18 hours ahead - Day 1 about 6 hours behind

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

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 2021/12/27 353,666,821 (decrease)
Earth Distance 2021/12/26 354,410,528 (decrease)
Earth Distance 2021/12/25 355,072,643 (decrease)

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

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

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

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

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 314 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 314 is Saturday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1293 2021-12-28 07:37:49

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/08 Sunday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2021/12/28 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: 148.5 Sol Number: 315  Change in degrees is +.5
Previous SL:      148.0 Previous Sol:314

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:   230,540,733 km [23.9 km/s] Difference is -192327 <= 7947 km/hour at 8.2 on 12/28 (time 8:12)
Distance: Mars >> Sun per theskylive.com:   230,733,060 km [23.8 km/s] Difference is -190580 <= 7940 km/hour at 8.0 on 12/27 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   230,923,640 km [23.8 km/s] Difference is -166325 <= 7920 km/hour at 8.0 on 12/26 (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: at 17:16 local time, a lonely little TYC showed up: 6228-1029-1 Magnitude 11.15 below path about 10 hours ahead Day 0
Next up: Will check later today to see if any objects that are catalogued come into view...
Next up: The star field is full of objects but few are catalogued - TYC 6228-1105-1 is just below Mars and about 2 hours ahead on Day 0
TYC 6228-1098-1 Magnitude 11.02 above path Day 0 about 12 hours ahead - day 1 about 12 hours behind

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

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

Earth Distance 2021/12/28 352,897,665 (decrease)
Earth Distance 2021/12/27 353,666,821 (decrease)
Earth Distance 2021/12/26 354,410,528 (decrease)

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

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

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

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

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 315 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 315 is Sunday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1294 2021-12-29 07:09:00

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/09 Monday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2021/12/29 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: 149.0 Sol Number: 316  Change in degrees is +.5
Previous SL:      148.5 Previous Sol:315

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:   230,355,056 km [23.9 km/s] Difference is -185677 <= 7969 km/hour at 7.5 on 12/29 (time 7:30)
Distance: Mars >> Sun per theskylive.com:   230,540,733 km [23.9 km/s] Difference is -192327 <= 7947 km/hour at 8.2 on 12/28 (time 8:12)
Distance: Mars >> Sun per theskylive.com:   230,733,060 km [23.8 km/s] Difference is -190580 <= 7940 km/hour at 8.0 on 12/27 (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

Uncataloged star at far left of view: RA 16h 39m 12.3s Dec: -22 degrees 19 minutes 48.8 seconds Day 0 about 10 hours ahead
Next up: TYC 6228-1422-1 Magnitude 9.47 far below path Day 0 about 3 hours ahead
TYC 6228-1105-1 is just below Mars and about 2 hours ahead on Day 0 - Day 1 just visible at the far right of view

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

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

Earth Distance 2021/12/29 352,142,232 (decrease)
Earth Distance 2021/12/28 352,897,665 (decrease)
Earth Distance 2021/12/27 353,666,821 (decrease)

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

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

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

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

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 316 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 316 is Monday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1295 2021-12-30 08:21:39

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/10 Tuesday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2021/12/30 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: 149.5 Sol Number: 317  Change in degrees is +.5
Previous SL:      149.0 Previous Sol:316

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:   230,155,515 km [23.9 km/s] Difference is -199541 <= 7982 km/hour at 8.5 on 12/30 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   230,355,056 km [23.9 km/s] Difference is -185677 <= 7969 km/hour at 7.5 on 12/29 (time 7:30)
Distance: Mars >> Sun per theskylive.com:   230,540,733 km [23.9 km/s] Difference is -192327 <= 7947 km/hour at 8.2 on 12/28 (time 8:12)

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: String of TYC's 6229-51-1, 6229-64-1, 6229-18-1 all descending from PGC 815261
Next up: microBoomer: HIP 81860 Magnitude 9.87 above path Day 0 about 18 hours ahead
Added later: Galaxy: PGC 815261 RA 16h 41m 48.8s just below path about 18 hours ahead at sighting Day 1 about 6 hours ahead
RA 16h 39m 12.3s Dec: -22 degrees 19 minutes 48.8 seconds Day 0 about 10 hours ahead - Day 1 Still visible far right about 12 hours behind

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

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

Earth Distance 2021/12/30 351,328,132 (decrease)
Earth Distance 2021/12/29 352,142,232 (decrease)
Earth Distance 2021/12/28 352,897,665 (decrease)

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

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

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

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

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 317 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 317 is Tuesday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1296 2021-12-31 05:31:33

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/11 Wednesday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2021/12/31 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One day note: Astronomical month advanced from 5 to 6

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

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

Solar Longitude: 150.0 Sol Number: 318  Change in degrees is +.5
Previous SL:      149.5 Previous Sol:317

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

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

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

Distance: Mars >> Sun per theskylive.com:   229,983,510 km [23.9 km/s] Difference is -172005 <= 8000 km/hour at 6.0 on 12/31 (time 6:00)
Distance: Mars >> Sun per theskylive.com:   230,155,515 km [23.9 km/s] Difference is -199541 <= 7982 km/hour at 8.5 on 12/30 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   230,355,056 km [23.9 km/s] Difference is -185677 <= 7969 km/hour at 7.5 on 12/29 (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: Galaxy in path: PGC 3096993 RA 16 h 45 m 44.3 s Day 0 about 15 hours ahead
TYC's 6229-51-1, 6229-64-1, 6229-18-1 all descending from PGC 815261 - Day 1 all at right of view - 4 to 15 hours behind
Next up: microBoomer: HIP 81860 Magnitude 9.87 above path Day 0 about 18 hours ahead - Day 1 about 5 hours behind

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

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

Earth Distance 2021/12/31 350,640,413 (decrease)
Earth Distance 2021/12/30 351,328,132 (decrease)
Earth Distance 2021/12/29 352,142,232 (decrease)

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

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

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

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

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 318 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 318 is Wednesday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1297 2022-01-01 07:37:24

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

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

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

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

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

Solar Longitude: 150.5 Sol Number: 319  Change in degrees is +.5
Previous SL:      150.0 Previous Sol:318

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

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

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

Distance: Mars >> Sun per theskylive.com:   229,775,339 km [23.9 km/s] Difference is -208171 <= 8007 km/hour at 8.0 on 01/01 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   229,983,510 km [23.9 km/s] Difference is -172005 <= 8000 km/hour at 6.0 on 12/31 (time 6:00)
Distance: Mars >> Sun per theskylive.com:   230,155,515 km [23.9 km/s] Difference is -199541 <= 7982 km/hour at 8.5 on 12/30 (time 8:30)

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

Next up: Star in path: TYC 6809-472-1 Magnitude 9.76 Day 0 about 15 hours ahead
This section of sky has a generous allocation of labeled objects!
Galaxy in path: PGC 3096993 RA 16 h 45 m 44.3 s Day 0 about 15 hours ahead - Day 1 about 10 hours past

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

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

Earth Distance 2022/01/01 349,768,379 (decrease)
Earth Distance 2021/12/31 350,640,413 (decrease)
Earth Distance 2021/12/30 351,328,132 (decrease)

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

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

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

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

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 319 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 319 is Thursday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1298 2022-01-02 07:30:34

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/13 Friday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/02 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 151.0 Sol Number: 320  Change in degrees is +.5
Previous SL:      150.5 Previous Sol:319

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

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

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

Distance: Mars >> Sun per theskylive.com:   229,582,676 km [24.0 km/s] Difference is -192663 <= 8028 km/hour at 8.0 on 01/02 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   229,775,339 km [23.9 km/s] Difference is -208171 <= 8007 km/hour at 8.0 on 01/01 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   229,983,510 km [23.9 km/s] Difference is -172005 <= 8000 km/hour at 6.0 on 12/31 (time 6:00)

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: Star just below path: TYC 6809-380-1 Magnitude 9.08 about 18 hours ahead
Star in path: TYC 6809-472-1 Magnitude 9.76 Day 0 about 15 hours ahead - Day 1 at far right of view but still visible - about 11 hours behind

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

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

Earth Distance 2022/01/02 348,999,933 (decrease)
Earth Distance 2022/01/01 349,768,379 (decrease)
Earth Distance 2021/12/31 350,640,413 (decrease)

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

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

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

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

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 320 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 320 is Friday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1299 2022-01-03 08:50:10

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/14 Saturday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/03 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 151.6 Sol Number: 321  Change in degrees is +.6
Previous SL:      151.0 Previous Sol:320

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

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

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

Distance: Mars >> Sun per theskylive.com:   229,377,830 km [24.0 km/s] Difference is -204846 <= 8033 km/hour at 9.5 on 01/03 (time 9:30)
Distance: Mars >> Sun per theskylive.com:   229,582,676 km [24.0 km/s] Difference is -192663 <= 8028 km/hour at 8.0 on 01/02 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   229,775,339 km [23.9 km/s] Difference is -208171 <= 8007 km/hour at 8.0 on 01/01 (time 8:00)

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

Next up: A pair in path: TYC 6810-94-1 Mg 11.39 TYC 6810-107-1 Mg 11.77 Day 0 about 18 hours ahead
Star just below path: TYC 6809-380-1 Magnitude 9.08 about 18 hours ahead - Day 1 about 5 hours past

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

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

Earth Distance 2022/01/03 348,161,725 (decrease)
Earth Distance 2022/01/02 348,999,933 (decrease)
Earth Distance 2022/01/01 349,768,379 (decrease)

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

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

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

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

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 321 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 321 is Saturday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

#1300 2022-01-04 08:29:08

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 10,426

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

Today on Mars: 0036/12/15 Sunday <<-- Days of the week are ** NOT in ** alignment with Earth. The next skip day is in January on Earth.

Today on Earth: 2022/01/04 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

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

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

Solar Longitude: 152.1 Sol Number: 322  Change in degrees is +.5
Previous SL:      151.6 Previous Sol:321

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

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

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

Distance: Mars >> Sun per theskylive.com:   229,192,724 km [24.0 km/s] Difference is -185106 <= 8048 km/hour at 8.5 on 01/04 (time 8:30)
Distance: Mars >> Sun per theskylive.com:   229,377,830 km [24.0 km/s] Difference is -204846 <= 8033 km/hour at 9.5 on 01/03 (time 9:30)
Distance: Mars >> Sun per theskylive.com:   229,582,676 km [24.0 km/s] Difference is -192663 <= 8028 km/hour at 8.0 on 01/02 (time 8:00)

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

Next up: a flattened triangle: TYC 6810-239-1 Mg 11.49 RA 15h 57m 22.6s trailed by 6810-275-1 and 6810-72-1 below path about 9 hours ahead
Note that the path angle is gradually rising from descending towards horizontal
A pair in path: TYC 6810-94-1 Mg 11.39 TYC 6810-107-1 Mg 11.77 Day 0 about 18 hours ahead

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

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

Earth Distance 2022/01/04 347,375,889 (decrease)
Earth Distance 2022/01/03 348,161,725 (decrease)
Earth Distance 2022/01/02 348,999,933 (decrease)

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

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

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

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520 - Update 2022/01/04 Retrograde movement is still in progress on sol 322

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

Sol 322 is in Month 12 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month  12 extends from Sol 308 through 334. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 12
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 322 is Sunday  in the Proposed Business calendar for Mars.

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

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

For current weather on Mars see:

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

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

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

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

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

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

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

Online

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