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#776 2020-09-25 05:11:54

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 284.1   Sol Number: 537  Change is +.7 degrees
Previous SL:      283.4  Previous Sol: 536

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

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

Distance of Mars from the Sun is given by theskylive.com as:   209,602,794 km Difference is +99718 <== 4452 km/hour at 7.1 on 9/25
Distance of Mars from the Sun is given by theskylive.com as:   209,503,076 km Difference is +105026 <= 4376 km/hour at 8.7 on 9/24
Distance of Mars from the Sun is given by theskylive.com as:   209,398,050 km Difference is +104751 <= 4293 km/hour at 8.7 on 9/23

Reference galaxy: PGC 1299942 RA 01h 42m 7s In path Day 3

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 537 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 537 is Sunday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in September on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#777 2020-09-27 06:51:26

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 284.7   Sol Number: 538  Change is +.6 degrees
Previous SL:      284.1  Previous Sol: 537

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

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

Distance of Mars from the Sun is given by theskylive.com as:   209,602,794 km Difference is +99718 <== 4452 km/hour at 7.1 on 9/25
Distance of Mars from the Sun is given by theskylive.com as:   209,503,076 km Difference is +105026 <= 4376 km/hour at 8.7 on 9/24
Distance of Mars from the Sun is given by theskylive.com as:   209,398,050 km Difference is +104751 <= 4293 km/hour at 8.7 on 9/23

Reference galaxy: PGC 1299942 RA 01h 42m 7s In path Day 3

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 538 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 538 is Monday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in September on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#778 2020-09-27 07:04:02

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 285.3   Sol Number: 539  Change is +.6 degrees
Previous SL:      284.7  Previous Sol: 538

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

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

Distance of Mars from the Sun is given by theskylive.com as:   209,830,160 km Difference is +227366 <= 4556 km/hour at 9.0 on 9/27
Distance of Mars from the Sun is given by theskylive.com as:   209,602,794 km Difference is +99718 <== 4452 km/hour at 7.1 on 9/25
Distance of Mars from the Sun is given by theskylive.com as:   209,503,076 km Difference is +105026 <= 4376 km/hour at 8.7 on 9/24

Reference Star: HIP 7774 Magnitude 8.87 above and "ahead" 15 hours - should be good for a couple of days

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 539 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 539 is Tuesday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in September on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#779 2020-09-28 05:58:19

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 285.9   Sol Number: 540  Change is +.6 degrees
Previous SL:      285.3  Previous Sol: 539

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

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

Distance of Mars from the Sun is given by theskylive.com as:   209,937,014 km Difference is +106854 <= 4666 km/hour at 7.9 on 9/28
Distance of Mars from the Sun is given by theskylive.com as:   209,830,160 km Difference is +227366 <= 4556 km/hour at 9.0 on 9/27
Distance of Mars from the Sun is given by theskylive.com as:   209,602,794 km Difference is +99718 <== 4452 km/hour at 7.1 on 9/25

Reference Star: HIP 7774 Magnitude 8.87 above and "behind" 15 hours - should be good for a couple more days

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 540 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 540 is Wednesday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in September on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#780 2020-09-29 07:36:36

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 286.5   Sol Number: 541  Change is +.6 degrees
Previous SL:      285.9  Previous Sol: 540

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

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

Distance of Mars from the Sun is given by theskylive.com as:   210,058,540 km Difference is +121526 <= 4729 km/hour at 9.6 on 9/29
Distance of Mars from the Sun is given by theskylive.com as:   209,937,014 km Difference is +106854 <= 4666 km/hour at 7.9 on 9/28
Distance of Mars from the Sun is given by theskylive.com as:   209,830,160 km Difference is +227366 <= 4556 km/hour at 9.0 on 9/27

Reference Star: TYC 34-320-1 In path Out more than 27 hours on Day 0 Should be good for several days

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 541 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 541 is Thursday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in September on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#781 2020-09-30 06:55:02

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 287.1   Sol Number: 542  Change is +.6 degrees
Previous SL:      286.5  Previous Sol: 541

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

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

Distance of Mars from the Sun is given by theskylive.com as:   210,170,593 km Difference is +112053 <= 4809 km/hour at 8.9 on 9/30
Distance of Mars from the Sun is given by theskylive.com as:   210,058,540 km Difference is +121526 <= 4729 km/hour at 9.6 on 9/29
Distance of Mars from the Sun is given by theskylive.com as:   209,937,014 km Difference is +106854 <= 4666 km/hour at 7.9 on 9/28

Reference Star: TYC 34-320-1 In path Out more than 13 hours on Day 1 Should be good for several more days

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 542 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 542 is Friday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in September on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#782 2020-10-02 06:15:09

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 288.4   Sol Number: 544  Change is +.7 degrees
Previous SL:      287.7  Previous Sol: 543

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

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

Distance of Mars from the Sun is given by theskylive.com as:   210,403,175 km Difference is +115667 <= 4943 km/hour at 8.2 on 10/2
Distance of Mars from the Sun is given by theskylive.com as:   210,287,508 km Difference is +116915 <= 4892 km/hour at 8.8 on 10/1
Distance of Mars from the Sun is given by theskylive.com as:   210,170,593 km Difference is +112053 <= 4809 km/hour at 8.9 on 9/30

Reference Star: TYC 34-320-1 In path Way past Mars on Day  3 - time for a new reference
Reference Star: TYC 34-660-1 Magnitude 10.43 Above path out 36+ hours on Day 0

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 544 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 544 is Sunday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in September on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#783 2020-10-03 08:13:12

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 289.0   Sol Number: 545  Change is +.6 degrees
Previous SL:      288.4  Previous Sol: 544

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

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

Distance of Mars from the Sun is given by theskylive.com as:   210,533,337 km Difference is +130162 <= 5026 km/hour at 10.1 on 10/3
Distance of Mars from the Sun is given by theskylive.com as:   210,403,175 km Difference is +115667 <= 4943 km/hour at 8.2 on 10/2
Distance of Mars from the Sun is given by theskylive.com as:   210,287,508 km Difference is +116915 <= 4892 km/hour at 8.8 on 10/1

Reference Star: TYC 34-320-1 In path Way past Mars on Day  4 - just visible to East
Reference Star: TYC 34-660-1 Magnitude 10.43 Above path out 18+ hours on Day 1

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 545 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 20
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 545 is Monday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in September on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#784 2020-10-04 07:18:09

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 289.6   Sol Number: 546  Change is +.6 degrees
Previous SL:      289.0  Previous Sol: 545

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

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

Distance of Mars from the Sun is given by theskylive.com as:   210,650,961 km Difference is +117624 <= 5070 km/hour at 9.3 on 10/4
Distance of Mars from the Sun is given by theskylive.com as:   210,533,337 km Difference is +130162 <= 5026 km/hour at 10.1 on 10/3
Distance of Mars from the Sun is given by theskylive.com as:   210,403,175 km Difference is +115667 <= 4943 km/hour at 8.2 on 10/2

Reference Star: TYC 34-660-1 Magnitude 10.43 Above path Past 2+ hours on Day 2

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 546 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 546 is Tuesday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in September on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#785 2020-10-05 06:40:51

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 290.2   Sol Number: 547  Change is +.6 degrees
Previous SL:      289.6  Previous Sol: 546

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

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

Distance of Mars from the Sun is given by theskylive.com as:   210,771,322 km Difference is +120361 <= 5166 km/hour at 8.6 on 10/5
Distance of Mars from the Sun is given by theskylive.com as:   210,650,961 km Difference is +117624 <= 5070 km/hour at 9.3 on 10/4
Distance of Mars from the Sun is given by theskylive.com as:   210,533,337 km Difference is +130162 <= 5026 km/hour at 10.1 on 10/3

Reference Star: TYC 34-660-1 Magnitude 10.43 Above path Past Mars 23+ hours on Day 3
Reference Star: HIP 7046 Magnitude 8.19 Above and ahead of Mars on Day 0

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 547 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 547 is Wednesday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in October on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#786 2020-10-06 07:22:17

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 290.8   Sol Number: 548  Change is +.6 degrees
Previous SL:      290.2  Previous Sol: 547

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

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

Distance of Mars from the Sun is given by theskylive.com as:   210,900,165 km Difference is +128843 <= 5216 km/hour at 9.3 on 10/6
Distance of Mars from the Sun is given by theskylive.com as:   210,771,322 km Difference is +120361 <= 5166 km/hour at 8.6 on 10/5
Distance of Mars from the Sun is given by theskylive.com as:   210,650,961 km Difference is +117624 <= 5070 km/hour at 9.3 on 10/4

Mars is approaching it's closest distance to Earth ... today's reported distance is: 62,069,567 km

Reference Star: HIP 7046 Magnitude 8.19 Above and behind Mars on Day 1
Reference Star: TYC 27-388-1 Magnitude 10.91 Just visible to West Just below path on Day 0

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 548 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 548 is Thursday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in October on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#787 2020-10-07 06:11:02

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 291.4   Sol Number: 549  Change is +.6 degrees
Previous SL:      290.8  Previous Sol: 548

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

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

Distance of Mars from the Sun is given by theskylive.com as:   211,020,638 km Difference is +120473 <= 5284 km/hour at 8.1 on 10/7
Distance of Mars from the Sun is given by theskylive.com as:   210,900,165 km Difference is +128843 <= 5216 km/hour at 9.3 on 10/6
Distance of Mars from the Sun is given by theskylive.com as:   210,771,322 km Difference is +120361 <= 5166 km/hour at 8.6 on 10/5

Mars is approaching it's closest distance to Earth ... today's reported distance is: 62,069,567 km

Reference Star: TYC 27-388-1 Magnitude 10.91. Just below Mars on Day 1
Reference Galaxy: PGC 1286543 RA: 1h 28m 7s Ahead 22+ hours on Day 0

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 549 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 549 is Friday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in October on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#788 2020-10-08 07:34:51

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 292.0   Sol Number: 550  Change is +.6 degrees
Previous SL:      291.4  Previous Sol: 549

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

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

Distance of Mars from the Sun is given by theskylive.com as:   211,156,083 km Difference is +135445 <= 5354 km/hour at 9.4 on 10/8
Distance of Mars from the Sun is given by theskylive.com as:   211,020,638 km Difference is +120473 <= 5284 km/hour at 8.1 on 10/7
Distance of Mars from the Sun is given by theskylive.com as:   210,900,165 km Difference is +128843 <= 5216 km/hour at 9.3 on 10/6

Mars is past it's closest distance to Earth ... today's reported distance is: 62,114,825 km, up from 62,069,567 km. Light travel time is 207 seconds (3+minutes)

Reference Star: TYC 27-388-1 Magnitude 10.91. About 20 hours East on Day 2
Reference Galaxy: PGC 1286543 RA: 1h 28m 7s Ahead a few hours on Day 1 Mars will pass just above

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 550 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 550 is Saturday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in October on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#789 2020-10-08 18:43:20

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 19,940

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

Mars at its biggest and brightest until 2035mars-biggest-brightest-2035-october-2020-hg.jpg

shapes and orientations of the planets' orbits, however, Mars and Earth were actually closest on Tuesday, October 6th, separated by just 62 million kilometers (39 million miles).

Offline

#790 2020-10-09 05:29:52

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

For SpaceNut re #789 .... Nice! Thanks for that addition to this topic!  Light time to Mars is under 4 minutes right now. This is a good time for a low latency phone call to family and friends on Earth.

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. December 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 292.6   Sol Number: 551  Change is +.6 degrees
Previous SL:      292.0  Previous Sol: 550

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

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

Distance of Mars from the Sun is given by theskylive.com as:   211,275,087 km Difference is +119004 <= 5409 km/hour at 7.4 on 10/9
Distance of Mars from the Sun is given by theskylive.com as:   211,156,083 km Difference is +135445 <= 5354 km/hour at 9.4 on 10/8
Distance of Mars from the Sun is given by theskylive.com as:   211,020,638 km Difference is +120473 <= 5284 km/hour at 8.1 on 10/7

Mars is past it's closest distance to Earth ... Light travel time is (3+minutes) It's a good time for a radio chat.

Reference Star: TYC 27-388-1 Magnitude 10.91. Way East on Day 3 - Will be out of view tomorrow
Reference Galaxy: PGC 1286543 RA: 1h 28m 7s Behind a few hours on Day 2 Mars passed just above

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 551 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 551 is Sunday in the Proposed calendar for Mars. 

** short term note ** This is the final week of Month 20 ... a Skip Day is expected this week

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in October on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#791 2020-10-10 06:57:07

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. December 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 293.2   Sol Number: 552  Change is +.6 degrees
Previous SL:      292.6  Previous Sol: 551

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

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

Distance of Mars from the Sun is given by theskylive.com as:   211,414,571 km Difference is +139484 <= 5470 km/hour at 8.9 on 10/10
Distance of Mars from the Sun is given by theskylive.com as:   211,275,087 km Difference is +119004 <= 5409 km/hour at 7.4 on 10/9
Distance of Mars from the Sun is given by theskylive.com as:   211,156,083 km Difference is +135445 <= 5354 km/hour at 9.4 on 10/8

Mars is past it's closest distance to Earth ... Light travel time is (3+minutes) It's a good time for a radio chat.

Reference Galaxy: PGC 1286543 RA: 1h 28m 7s Behind many hours on Day 3. Will be out of view tomorrow.
Next up: HIP 6638 magnitude 8.60 Below Mars and ahead 11 hours or so

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 552 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 552 is Monday in the Proposed calendar for Mars. 

** short term note ** This is the final week of Month 20 ... a Skip Day is expected this week

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in October on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#792 2020-10-11 06:27:17

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. December 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 293.8   Sol Number: 553  Change is +.6 degrees
Previous SL:      293.2  Previous Sol: 552

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

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

Distance of Mars from the Sun is given by theskylive.com as:   211,544,980 km Difference is +130409 <= 5549 km/hour at 8.4 on 10/11
Distance of Mars from the Sun is given by theskylive.com as:   211,414,571 km Difference is +139484 <= 5470 km/hour at 8.9 on 10/10
Distance of Mars from the Sun is given by theskylive.com as:   211,275,087 km Difference is +119004 <= 5409 km/hour at 7.4 on 10/9

Mars is past it's closest distance to Earth ... Light travel time is (3+minutes) It's a good time for a radio chat.

Center: HIP 6638 magnitude 8.60 Below Mars and behind 11 hours or so
Next up: HIP 6525 Magnitude 8.60 Below Mars and ahead 11 hours or so

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 553 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 553 is Tuesday in the Proposed calendar for Mars. 

** short term note ** This is the final week of Month 20 ... a Skip Day is expected this week

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in October on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#793 2020-10-12 05:08:33

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. December 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 294.5   Sol Number: 554  Change is +.7 degrees
Previous SL:      293.8  Previous Sol: 553

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

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

Distance of Mars from the Sun is given by theskylive.com as:   211,672,212 km Difference is +127232 <= 5605 km/hour at 7.1 on 10/12
Distance of Mars from the Sun is given by theskylive.com as:   211,544,980 km Difference is +130409 <= 5549 km/hour at 8.4 on 10/11
Distance of Mars from the Sun is given by theskylive.com as:   211,414,571 km Difference is +139484 <= 5470 km/hour at 8.9 on 10/10

Mars is past it's closest distance to Earth ... Light travel time is (3+minutes) It's a good time for a radio chat.

Next up: HIP 6416 Magnitude 7.46 Below Mars and ahead about 15 hours
Just past: HIP 6525 Magnitude 8.60 Below Mars and behind 11 hours or so

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 554 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 554 is Wednesday in the Proposed calendar for Mars. 

** short term note ** This is the final week of Month 20 ... a Skip Day is expected this week

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in October on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#794 2020-10-13 06:41:32

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. December 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 295.1   Sol Number: 555  Change is +.6 degrees
Previous SL:      294.5  Previous Sol: 554

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

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

Distance of Mars from the Sun is given by theskylive.com as:   211,816,894 km Difference is +144682 <= 5674 km/hour at 8.6 on 10/13
Distance of Mars from the Sun is given by theskylive.com as:   211,672,212 km Difference is +127232 <= 5605 km/hour at 7.1 on 10/12
Distance of Mars from the Sun is given by theskylive.com as:   211,544,980 km Difference is +130409 <= 5549 km/hour at 8.4 on 10/11

Mars is past it's closest distance to Earth ... Light travel time is (3+minutes) It's a good time for a radio chat.

Next up: Galaxy PGC 1280267 RA 1h 21m 25.3s Ahead about 11 hours
Just past: HIP 6416 Magnitude 7.46 Below Mars and behind about 11 hours
Well past: HIP 6525 Magnitude 8.60 Below Mars and behind over 22 hours

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 555 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 555 is Thursday in the Proposed calendar for Mars. 

** short term note ** This is the final week of Month 20 ... a Skip Day is expected this week

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in October on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#795 2020-10-14 06:26:17

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. December 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 295.7   Sol Number: 556  Change is +.6 degrees << This ** should ** be a skip day, if my prediction is correct
Previous SL:      295.1  Previous Sol: 555

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

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

Distance of Mars from the Sun is given by theskylive.com as:   211,952,939 km Difference is +136045 <= 5716 km/hour at 8.4 on 10/14
Distance of Mars from the Sun is given by theskylive.com as:   211,816,894 km Difference is +144682 <= 5674 km/hour at 8.6 on 10/13
Distance of Mars from the Sun is given by theskylive.com as:   211,672,212 km Difference is +127232 <= 5605 km/hour at 7.1 on 10/12

Mars is past it's closest distance to Earth ... Light travel time is (3+minutes) It's a good time for a radio chat.

Next up: Galaxy PGC 1281256 RA 1h 19m 40.2s Ahead > 11 hours on Day 0
Galaxy PGC 1280267 RA 1h 21m 25.3s Past about 11 hours on Day 1 - may last anothter day in view
Just past: HIP 6416 Magnitude 7.46 Below Mars and behind about 11 hours << Past more than 24 hours - may last another day in view

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 556 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 556 is Friday in the Proposed calendar for Mars. 

** short term note ** This is the final week of Month 20 ... a Skip Day is expected this week

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in October on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#796 2020-10-15 06:05:56

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today is a skip day ... The next will occur in (about) 37 days on (about) November 21, 2020

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. December 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 296.3   Sol Number: 556  Change is +.6 degrees << Skip day ... Mars has accumulated 24 hours compared to Earth
Previous SL:      295.7  Previous Sol: 556  <<== 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 will occur near 70 degrees Ls (per www.planetary.org)

Distance of Mars from the Sun is given by theskylive.com as:   212,089,690 km Difference is +136751 <= 5795 km/hour at 8.0 on 10/15
Distance of Mars from the Sun is given by theskylive.com as:   211,952,939 km Difference is +136045 <= 5716 km/hour at 8.4 on 10/14
Distance of Mars from the Sun is given by theskylive.com as:   211,816,894 km Difference is +144682 <= 5674 km/hour at 8.6 on 10/13

Mars is past it's closest distance to Earth ... Light travel time is (3+minutes) It's a good time for a radio chat.

Star TYC 26-912-1 Magnitude 10.92 out < 22 hours on Day 0
Galaxy PGC 1281256 RA 1h 19m 40.2s Just past Mars on Day 1
Galaxy PGC 1280267 RA 1h 21m 25.3s Well past on Day 2. Will be out of view tomorrow

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 556 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 556 is Friday in the Proposed calendar for Mars. 

** short term note ** This is the final week of Month 20 ... a Skip Day is expected this week

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in October on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#797 2020-10-16 05:14:23

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. December 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 296.9   Sol Number: 557  Change is +.6 degrees << The next Mars Skip day will occur (about) November 21st on Earth
Previous SL:      296.3  Previous Sol: 556  <<== 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 will occur near 70 degrees Ls (per www.planetary.org)

Distance of Mars from the Sun is given by theskylive.com as:   212,225,141 km Difference is +135451 <= 5838 km/hour at 7.2 on 10/16
Distance of Mars from the Sun is given by theskylive.com as:   212,089,690 km Difference is +136751 <= 5795 km/hour at 8.0 on 10/15
Distance of Mars from the Sun is given by theskylive.com as:   211,952,939 km Difference is +136045 <= 5716 km/hour at 8.4 on 10/14

Mars is past it's closest distance to Earth ... Light travel time is (3+minutes) It's a good time for a radio chat.

Next up: HIP 5969 Magnitude 7.68 Below path and ahead 22+ hours on Day 0
Star TYC 26-912-1 Magnitude 10.92 Just past Mars on Day 1
Galaxy PGC 1281256 RA 1h 19m 40.2s Well past Mars on Day 2 - will probably be out of view tomorrow

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 557 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 19
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 557 is Saturday in the Proposed calendar for Mars. 

** short term note ** This is the final week of Month 20 ... a Skip Day occurred on Sol 556

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in November on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 20 of 24: <<== Second month of Quarter 4

Offline

#798 2020-10-17 06:41:46

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. December 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 297.5   Sol Number: 558  Change is +.6 degrees << The next Mars Skip day will occur (about) November 21st on Earth
Previous SL:      296.9  Previous Sol: 557

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

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

Distance of Mars from the Sun is given by theskylive.com as:   212,375,594 km Difference is +150453 <= 5923 km/hour at 8.6 on 10/17
Distance of Mars from the Sun is given by theskylive.com as:   212,225,141 km Difference is +135451 <= 5838 km/hour at 7.2 on 10/16
Distance of Mars from the Sun is given by theskylive.com as:   212,089,690 km Difference is +136751 <= 5795 km/hour at 8.0 on 10/15

Mars is past it's closest distance to Earth ... Light travel time is (3+minutes) It's a good time for a radio chat.

Next up: Galaxy NGC 455 Magnitude 13.60 above and ahead 11+ hours on Day 0
Next up: HIP 5969 Magnitude 7.68 Below path and just below Mars on Day 1
Star TYC 26-912-1 Magnitude 10.92 Well past Mars on Day 2

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 558 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 558 is Sunday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in November on Earth. A Skip Day occurs when the longer Mars Sol reaches 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 21 of 24: <<== Third month of Quarter 4

Offline

#799 2020-10-18 09:47:01

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. December 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 298.1   Sol Number: 559  Change is +.6 degrees << The next Mars Skip day will occur (about) November 21st on Earth
Previous SL:      297.5  Previous Sol: 558

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

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

Distance of Mars from the Sun is given by theskylive.com as:   212,525,030 km Difference is +149436 <= 5954 km/hour at 9.7 on 10/18
Distance of Mars from the Sun is given by theskylive.com as:   212,375,594 km Difference is +150453 <= 5923 km/hour at 8.6 on 10/17
Distance of Mars from the Sun is given by theskylive.com as:   212,225,141 km Difference is +135451 <= 5838 km/hour at 7.2 on 10/16

Mars is past it's closest distance to Earth ... Light travel time is (3+minutes) It's a good time for a radio chat.

Next up: Galaxy PGC 4495 Magnitude 15.70 below path 11 hours ahead on Day 0
Galaxy NGC 455 Magnitude 13.60 above and behind 11+ hours on Day 1
HIP 5969 Magnitude 7.68 Below path and 23 hours past Mars on Day 2

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 559 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 559 is Monday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in November on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 21 of 24: <<== Third month of Quarter 4

Offline

#800 2020-10-19 07:08:19

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,841

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. December 2020 next alignment estimate.

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

Martian Year: 35  Martian Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

Solar Longitude: 298.7   Sol Number: 560  Change is +.6 degrees << The next Mars Skip day will occur (about) November 21st on Earth
Previous SL:      298.1  Previous Sol: 559  <<== Astronomical month 10 is drawing to a close

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

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

Distance of Mars from the Sun is given by theskylive.com as:   212,665,704 km Difference is +140674 <= 6037 km/hour at 9.0 on 10/19
Distance of Mars from the Sun is given by theskylive.com as:   212,525,030 km Difference is +149436 <= 5954 km/hour at 9.7 on 10/18
Distance of Mars from the Sun is given by theskylive.com as:   212,375,594 km Difference is +150453 <= 5923 km/hour at 8.6 on 10/17

Mars is past it's closest distance to Earth ... Light travel time is (<4 minutes) It's still a good time for a radio chat.

Next up: HIP 5752 above and 8+ hours ahead on Day 0
Galaxy PGC 4495 Magnitude 15.70 below path 11 hours behind on Day 1
Galaxy NGC 455 Magnitude 13.60 above and behind 23+ hours on Day 2
HIP 5969 Magnitude 7.68 Below path and many hours past Mars on Day 3. This is the last day for HIP 5969.

The apparent position of Mars is moving West away from the reference star, albeit slowly, as Earth slides "under" Mars
Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
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 560 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 560 is Tuesday in the Proposed calendar for Mars. 

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in November on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 21 of 24: <<== Third month of Quarter 4

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