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#701 2020-07-24 10:06:16

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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

Mars is approaching perihelion...

Mars' Calendar | The Planetary Society www.planetary.org › explore › space-topics › mars-cale...
The Mars dust storm season begins just after perihelion at around Ls = 260°. ... of this comparison, we use the solar longitude range 0°-360° to define a Mars ...

August 3, 2020
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular.Sep 16, 2018

Per Google from: earthsky.org › mars-perihelion-closest-to-sun

I found a citation that Mars receives (about) 40% more Solar radiation at perihelion than it does at apohelion.

That increase of energy would account for the expected increase in weather.

(th)

Last edited by tahanson43206 (2020-07-24 10:08:11)

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#702 2020-07-25 05:10:41

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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

The rate of movement toward the Sun is visibly decreasing as Mars approaches perihelion.  Perihelion of Mars is due August 3, 2020 (on Earth)

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: 9
Solar Longitude: 245.0 Sol Number: 477  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 244.4    Previous Sol: 476

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.

Distance of Mars from the Sun is given by theskylive.com as:   206,737,507 km Difference is -20571 <<==  847 km/hour at 7.1 on 7/25
Distance of Mars from the Sun is given by theskylive.com as:   206,758,078 km Difference is -19402 <<==  937 km/hour at 6.8 on 7/24
Distance of Mars from the Sun is given by theskylive.com as:   206,777,480 km Difference is -25798 <<== 1016 km/hour at 10.1 on 7/23

Reference object: Star HIP 4825 RA 1h 1m Magnitude 7.56 Just below path

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

Edit 2020/07/24:

August 3, 2020 (on Earth)
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular. Sep 16, 2018
From: earthsky.org › mars-perihelion-closest-to-sun

Sol 477 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 477 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 August 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18

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#703 2020-07-26 07:42:10

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 245.6 Sol Number: 478  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 245.0    Previous Sol: 477

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.

Distance of Mars from the Sun is given by theskylive.com as:   206,717,490 km Difference is -20017 <<==  755 km/hour at 9.6 on 7/26
Distance of Mars from the Sun is given by theskylive.com as:   206,737,507 km Difference is -20571 <<==  847 km/hour at 7.1 on 7/25
Distance of Mars from the Sun is given by theskylive.com as:   206,758,078 km Difference is -19402 <<==  937 km/hour at 6.8 on 7/24

Reference object: Star TYC 22-102-1 Magnitude 9.73 Above path and just ahead of Mars

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

Edit 2020/07/24:

August 3, 2020 (on Earth)
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular. Sep 16, 2018
From: earthsky.org › mars-perihelion-closest-to-sun

Sol 478 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 478 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 August 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18

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#704 2020-07-26 07:49:26

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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

For SpaceNut (and anyone else who may be interested) ...

As Mars perihelion approaches, it occurs to me that this astronomical event is likely to have significance to future Mars residents.  The planet will be as close to the Sun as it is going to get, and radiation from the Sun will be as great as it is going to get.

On Earth, the middle of Winter is celebrated.  RobertDyck has commented on the traditions on Earth in other topics, including the one dedicated to Holidays.

On Mars, it seems to me that a festive mood is likely at this time of the Martian year.  There are many months to come of a slog deeper and deeper into the cold, but for this period, things will be about as good as they are going to get.

Dust storms are about to start up, but NewMars contributors have already spoken to that problem.  The one I like is the thin aerogel layer that would prevent winds from moving particles on the ground.  Winds would still occur, if such a layer were installed, but they would not stir up the dust.

(th)

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#705 2020-07-27 06:56:22

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 246.3 Sol Number: 479  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 245.6    Previous Sol: 478

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.

Distance of Mars from the Sun is given by theskylive.com as:   206,702,113 km Difference is: -15377 <<== 660 km/hour at 8.9 on 7/27
Distance of Mars from the Sun is given by theskylive.com as:   206,717,490 km Difference is -20017 <<==  755 km/hour at 9.6 on 7/26
Distance of Mars from the Sun is given by theskylive.com as:   206,737,507 km Difference is -20571 <<==  847 km/hour at 7.1 on 7/25

Reference object: Star TYC 22-489-1 Magnitude 10.59 just above path

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

Edit 2020/07/24:

August 3, 2020 (on Earth)
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular. Sep 16, 2018
From: earthsky.org › mars-perihelion-closest-to-sun

Sol 479 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 479 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 August 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18

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#706 2020-07-28 06:37:50

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 246.9 Sol Number: 480  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 246.3    Previous Sol: 479

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.  Perihelion will show up as zero difference in the lines below.

Distance of Mars from the Sun is given by theskylive.com as:   206,688,559 km Difference is: -13554 <<== 572 km/hour at 8.6 on 7/28
Distance of Mars from the Sun is given by theskylive.com as:   206,702,113 km Difference is: -15377 <<== 660 km/hour at 8.9 on 7/27
Distance of Mars from the Sun is given by theskylive.com as:   206,717,490 km Difference is -20017 <<==  755 km/hour at 9.6 on 7/26

Reference object: Galaxy PGC 1245883 RA 1 h 6m Well above path and just ahead

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

Edit 2020/07/24:

August 3, 2020 (on Earth)
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular. Sep 16, 2018
From: earthsky.org › mars-perihelion-closest-to-sun

Sol 480 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 480 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 August 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18

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#707 2020-07-28 12:23:13

Calliban
Member
From: Northern England, UK
Registered: 2019-08-18
Posts: 532

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

Not sure what this thread is about.


Interested in space science, engineering and technology.

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#708 2020-07-28 17:27:44

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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

For Calliban re #707 ... thanks for taking a look at the topic.

We are a few sols away from Perihelion.  That is a noteworthy point in the orbit of Mars.  I am looking forward to seeing the count of kilometers per hour approaching the Sun drop to zero.  That event is predicted for August 3, 2020, Earth Calendar.

(th)

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#709 2020-07-29 07:08:21

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 247.6 Sol Number: 481  Change is +.7 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 246.9    Previous Sol: 480

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.  Perihelion will show up as zero difference in the lines below.

Distance of Mars from the Sun is given by theskylive.com as:   206,676,734 km Difference is: -11825 <<== 485 km/hour at 9.1 on 7/29
Distance of Mars from the Sun is given by theskylive.com as:   206,688,559 km Difference is: -13554 <<== 572 km/hour at 8.6 on 7/28
Distance of Mars from the Sun is given by theskylive.com as:   206,702,113 km Difference is: -15377 <<== 660 km/hour at 8.9 on 7/27

Reference object: Galaxy PGC 1246701 RA 1 h 9m Below path but well ahead

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

Edit 2020/07/24:

August 3, 2020 (on Earth)
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular. Sep 16, 2018
From: earthsky.org › mars-perihelion-closest-to-sun

Sol 481 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 481 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 August 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18

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#710 2020-07-30 06:20:13

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 248.2 Sol Number: 482  Change is +.7 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 247.6    Previous Sol: 481

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.  Perihelion will show up as zero difference in the lines below.

Distance of Mars from the Sun is given by theskylive.com as:   206,667,613 km Difference is: -9121 <<=== 393 km/hour at 8.3 on 7/30
Distance of Mars from the Sun is given by theskylive.com as:   206,676,734 km Difference is: -11825 <<== 485 km/hour at 9.1 on 7/29
Distance of Mars from the Sun is given by theskylive.com as:   206,688,559 km Difference is: -13554 <<== 572 km/hour at 8.6 on 7/28

Reference object: Star TYC 23-11-1 Magnitude 10.86 Square in path

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

Edit 2020/07/24:

August 3, 2020 (on Earth)
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular. Sep 16, 2018
From: earthsky.org › mars-perihelion-closest-to-sun

Sol 482 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 482 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 August 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18

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#711 2020-07-30 06:27:21

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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

Sol 482 marks the launch of the third of three planned unmanned probes to Mars.

Vehicles in transit now include those from the UAE/Japan, China and the United States.

Predicted arrival time for Perseverance is February 18, Earth time.

Edit#1: The NASA probe Perseverance received a second boost by it's Centaur upper stage.  That boost is reported to have been successful.

As a curious anomaly, the spacecraft shut itself down when it passed through the Earth's shadow and became cooler than the engineers had expected.

Another anomaly is that the strength of the signal from the spacecraft was too strong for the very sensitive radio equipment in the Deep Space Network. This problem will decrease as the spacecraft continues on its way.  Compensating signal processing methods are being used to pull the received data out of the recordings.  This has happened before, according to NASA updates about the current mission.

(th)

Last edited by tahanson43206 (2020-07-31 05:16:17)

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#712 2020-07-31 05:12:08

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 248.6 Sol Number: 483  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 248.2    Previous Sol: 482

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.  Perihelion will show up as zero difference in the lines below.

Distance of Mars from the Sun is given by theskylive.com as:   206,660,613 km Difference is: -7000 <<=== 307 km/hour at 7.1 on 7/31
Distance of Mars from the Sun is given by theskylive.com as:   206,667,613 km Difference is: -9121 <<=== 393 km/hour at 8.3 on 7/30
Distance of Mars from the Sun is given by theskylive.com as:   206,676,734 km Difference is: -11825 <<== 485 km/hour at 9.1 on 7/29

Reference object: Star TYC 23-904-1 Magnitude 11.17 Square in Path

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

Edit 2020/07/24:

August 3, 2020 (on Earth)
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular. Sep 16, 2018
From: earthsky.org › mars-perihelion-closest-to-sun

Sol 483 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 483 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 August 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

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#713 2020-08-01 06:25:58

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 249.5 Sol Number: 483  Change is +.7 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 248.8    Previous Sol: 483 <<== This is a skip day.  Mars has accumulated 24 hours due to its longer Sol.

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.  Perihelion will show up as zero difference in the lines below.

Distance of Mars from the Sun is given by theskylive.com as:   206,655,158 km Difference is: -5455 <<=== 216 km/hour at 8.4 on 8/01
Distance of Mars from the Sun is given by theskylive.com as:   206,660,613 km Difference is: -7000 <<=== 307 km/hour at 7.1 on 7/31
Distance of Mars from the Sun is given by theskylive.com as:   206,667,613 km Difference is: -9121 <<=== 393 km/hour at 8.3 on 7/30

Reference object: Star TYC 23-904-1 Magnitude 11.17 Square in Path <<== Still ahead of and just above Mars

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

Edit 2020/07/24:

August 3, 2020 (on Earth)
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular. Sep 16, 2018
From: earthsky.org › mars-perihelion-closest-to-sun

Sol 483 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 483 is Monday in the Proposed calendar for Mars.  <<== This is a skip day with respect to the Earth calendar

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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#714 2020-08-02 06:57:59

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 250.1 Sol Number: 484  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 249.5    Previous Sol: 483 <<== This was a skip day.  Mars has accumulated 24 hours due to its longer Sol.

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.  Perihelion will show up as zero difference in the lines below.

Distance of Mars from the Sun is given by theskylive.com as:   206,652,162 km Difference is: -2996 <<=== 122 km/hour at 8.9 on 8/02
Distance of Mars from the Sun is given by theskylive.com as:   206,655,158 km Difference is: -5455 <<=== 216 km/hour at 8.4 on 8/01
Distance of Mars from the Sun is given by theskylive.com as:   206,660,613 km Difference is: -7000 <<=== 307 km/hour at 7.1 on 7/31

Reference object: Star TYC 23-837-1 Magnitude 10.54 Above path and 8 hours ahead

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

Edit 2020/07/24:

August 3, 2020 (on Earth)
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular. Sep 16, 2018
From: earthsky.org › mars-perihelion-closest-to-sun

Sol 484 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 484 is Tuesday in the Proposed calendar for Mars.  <<== This is a skip day with respect to the Earth calendar

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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Offline

#715 2020-08-03 08:57:56

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 250.7 Sol Number: 485  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 250.1    Previous Sol: 484

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.  Perihelion will show up as zero difference in the lines below.

Distance of Mars from the Sun is given by theskylive.com as:   206,651,452 km Difference is: -710 <<==== 27 km/hour at 10.9 on 8/03
Distance of Mars from the Sun is given by theskylive.com as:   206,652,162 km Difference is: -2996 <<=== 122 km/hour at 8.9 on 8/02
Distance of Mars from the Sun is given by theskylive.com as:   206,655,158 km Difference is: -5455 <<=== 216 km/hour at 8.4 on 8/01

Reference object: Galaxy PGC 3092252 RA 1 hour 18 minutes 24 hours ahead just below path

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

Edit 2020/07/24:

August 3, 2020 (on Earth)
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular. Sep 16, 2018
From: earthsky.org › mars-perihelion-closest-to-sun

Sol 485 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 485 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Last edited by tahanson43206 (2020-08-11 09:19:21)

Offline

#716 2020-08-03 09:03:41

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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

Perihelion is very close ... It was predicted to occur on August 3rd, Earth Calendar, and at 11 AM Eastern Standard Time, the rate of descent toward the Sun is showing as 27 kilometers per hour.  Since the date of August 3rd will persist on Earth until the last time zone strikes Midnight, I think there is a very good chance the rate of progress toward the Sun will pass through zero during that interval.

SearchTerm:PerihelionSol485

I'm expecting the next status check, on the morning of August 4th, to show that Mars is once again receding from the Sun on its way to Aphelion, 334 Sols from now.

Distance of Mars from the Sun is given by theskylive.com as:   206,651,452 km Difference is: -710 <<==== 27 km/hour at 10.9 on 8/03
Distance of Mars from the Sun is given by theskylive.com as:   206,652,162 km Difference is: -2996 <<=== 122 km/hour at 8.9 on 8/02
Distance of Mars from the Sun is given by theskylive.com as:   206,655,158 km Difference is: -5455 <<=== 216 km/hour at 8.4 on 8/01

Reference object: Galaxy PGC 3092252 RA 1 hour 18 minutes 24 hours ahead just below path

August 3, 2020 (on Earth)
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular. Sep 16, 2018
From: earthsky.org › mars-perihelion-closest-to-sun

Edit#1:  Brain Challenge

For this post, I wanted to be able to report the persistence of August 3rd around the world.

In starting to think about it, I set focus upon Greenwich, England, where (by convention) the marker for Universal Time is maintained.

As the Earth rotates, and as the Time Zone Marker at Greenwich passes through local midnight, the new day begins there, but the old day persists everywhere else.  It crossed my mind to wonder if towns immediately to the West of Greenwich would be experiencing the previous day, and of course, they would, if they were going by astronomical time.  However, (again by convention) humans have established time zones, so all towns within whatever time zone Greenwich occupies would be counted as having passed into the new day at the same time as Greenwich.

So, I conclude that (by convention) the persistence of the old day will be less than twentyfour hours, depending upon the location of the border of the time zone in which Greenwich resides.

Accordingly, I would guess (wildly) that the interval within which Mars could pass through zero kilometers per hour in its descent toward the Sun would be on the order of 23 hours from midnight at Greenwich.  According to www.worldtimeserver.com, UTC is 15:17 (as this text is entered).

I am guessing that August 3rd will persist for (on the order of) 8 more hours at Greenwich, but I would expect it to persist for 16 more hours East of Greenwich.   

All that said, (and upon reflection), for the purpose of this post, I think it is reasonable to take Greenwich time as the marker, and in that case, Mars has only 8 hours to pass through zero kilometers per hour for the prediction to turn out to be correct.

Thus, it should be possible to access theSkyLive web site 8 hours from now (as Greenwich passes through midnight) and check to see if the transition has occurred.    I've made a note to check the status of Mars at 19:00 local time.

Edit#1: at 19.7 local time, 206,651,787 km was the distance to the Sun reported by TheSkyLive.com.

The distance reported this morning was 206,6451,452 ... The zero point is passed ... The long climb to Aphelion is under way.

(th)

Last edited by tahanson43206 (2020-08-04 06:06:29)

Offline

#717 2020-08-04 06:04:24

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 251.7 Sol Number: 486  Change is +.7 degrees

Previous SL: 250.7    Previous Sol: 485

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.  Perihelion will show up as zero difference in the lines below.

Distance of Mars from the Sun is given by theskylive.com as:   206,652,737 km Dufference is +1285 <<== Unknown (*) Recorded at 8.0 on 8/04
Distance of Mars from the Sun is given by theskylive.com as:   206,651,452 km Difference is: -710 <<==== 27 km/hour at 10.9 on 8/03
Distance of Mars from the Sun is given by theskylive.com as:   206,652,162 km Difference is: -2996 <<=== 122 km/hour at 8.9 on 8/02
Distance of Mars from the Sun is given by theskylive.com as:   206,655,158 km Difference is: -5455 <<=== 216 km/hour at 8.4 on 8/01

(*) The rate of travel descended to zero and then resumed from there.

Reference object: Star TYC 23-1035-1 Magnitude 8.71 17 hours ahead and just above path

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

Edit 2020/07/24:

August 3, 2020 (on Earth)
Mars' perihelion is a once-in-two-Earth-years event. Mars came to perihelion last on October 29, 2016. Its next perihelion will be August 3, 2020. None of the planets have exactly circular orbits, but most, like Earth, have orbits around the sun that are nearly circular. Sep 16, 2018
From: earthsky.org › mars-perihelion-closest-to-sun

Sol 486 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 486 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Last edited by tahanson43206 (2020-08-11 09:20:40)

Offline

#718 2020-08-05 07:18:52

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 252.0 Sol Number: 487  Change is +.6 degrees

Previous SL: 251.4    Previous Sol: 486

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.  Perihelion will show up as zero difference in the lines below.

Distance of Mars from the Sun is given by theskylive.com as:   206,656,463 km Difference is +3726 <<== 148 km/hour at 9.1 on 8/05
Distance of Mars from the Sun is given by theskylive.com as:   206,652,737 km Difference is +1285 <<== Unknown (*) Recorded at 8.0 on 8/04
Distance of Mars from the Sun is given by theskylive.com as:   206,651,452 km Difference is: -710 <<==== 27 km/hour at 10.9 on 8/03

(*) The rate of travel descended to zero and then resumed from there. In any case, the rate-of-travel figure is an average. The rate is increasing steadily.

Reference object: Star TYC 24-727-1 Magnitude 11.32  17 hours ahead and above path

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

Sol 487 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 487 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Last edited by tahanson43206 (2020-08-11 09:21:08)

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#719 2020-08-05 11:02:33

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 19,715

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

As you noted the 500 ft hop is a day for the starship crew unit to celebrate.

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#720 2020-08-06 05:48:19

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 252.6   Sol Number: 488  Change is +.6 degrees

Previous SL:      252.0  Previous Sol: 487

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Minus prefix means Mars is approaching the Sun.  Perihelion will show up as zero difference in the lines below.

Distance of Mars from the Sun is given by theskylive.com as:   206,661,846 km Difference is +5383 <<== 238 km/hour at 7.7 on 8/06
Distance of Mars from the Sun is given by theskylive.com as:   206,656,463 km Difference is +3726 <<== 148 km/hour at 9.1 on 8/05
Distance of Mars from the Sun is given by theskylive.com as:   206,652,737 km Difference is +1285 <<== Unknown (*) Recorded at 8.0 on 8/04

(*) The rate of travel descended to zero and then reversed direction from there.

Reference object: Galaxy PGC 1267842 RA 1h 22m 22.4s In path

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

Sol 488 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 488 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 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Last edited by tahanson43206 (2020-08-11 09:21:29)

Offline

#721 2020-08-07 04:26:59

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 253.3   Sol Number: 489  Change is +.7 degrees

Previous SL:      252.6  Previous Sol: 488

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 will show up as zero difference in the lines below.
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:   206,669,143 km Difference is +7297 <<== 321 km/hour at 6.3 on 8/07
Distance of Mars from the Sun is given by theskylive.com as:   206,661,846 km Difference is +5383 <<== 238 km/hour at 7.7 on 8/06
Distance of Mars from the Sun is given by theskylive.com as:   206,656,463 km Difference is +3726 <<== 148 km/hour at 9.1 on 8/05

Reference object: Galaxy PGC 1269422 RA 1h 23m 57.8s Just below path

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

Sol 489 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 489 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Last edited by tahanson43206 (2020-08-11 09:22:17)

Offline

#722 2020-08-08 06:46:40

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 253.9   Sol Number: 490  Change is +.6 degrees

Previous SL:      253.3  Previous Sol: 489

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:   206,680,086 km Difference is +10943 <<= 415 km/hour at 8.7 on 8/08
Distance of Mars from the Sun is given by theskylive.com as:   206,669,143 km Difference is +7297 <<== 321 km/hour at 6.3 on 8/07
Distance of Mars from the Sun is given by theskylive.com as:   206,661,846 km Difference is +5383 <<== 238 km/hour at 7.7 on 8/06

Reference object: Star TYC 24-492-1  Magnitude 11.51 9 hours ahead and far above path

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

Sol 490 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 490 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Last edited by tahanson43206 (2020-08-11 09:22:38)

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#723 2020-08-09 06:36:39

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 254.5   Sol Number: 491  Change is +.6 degrees

Previous SL:      253.9  Previous Sol: 490

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:   206,692,246 km Difference is +12160 <<= 509 km/hour at 8.6 on 8/09
Distance of Mars from the Sun is given by theskylive.com as:   206,680,086 km Difference is +10943 <<= 415 km/hour at 8.7 on 8/08
Distance of Mars from the Sun is given by theskylive.com as:   206,669,143 km Difference is +7297 <<== 321 km/hour at 6.3 on 8/07

Reference object: Star TYC 24-1052-1 Magnitude 10.49 Well above and abreast of Mars at 8.5 on The Sky Live.

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

Sol 491 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 491 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Last edited by tahanson43206 (2020-08-11 09:23:07)

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#724 2020-08-10 05:38:09

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 255.2   Sol Number: 492  Change is +.7 degrees

Previous SL:      254.5  Previous Sol: 491

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:   206,705,991 km Difference is +13745 <<= 598 km/hour at 7.6 on 8/10
Distance of Mars from the Sun is given by theskylive.com as:   206,692,246 km Difference is +12160 <<= 509 km/hour at 8.6 on 8/09
Distance of Mars from the Sun is given by theskylive.com as:   206,680,086 km Difference is +10943 <<= 415 km/hour at 8.7 on 8/08

Reference object: Star TYC 24-1042-1 Magnitude 10.94 Well ahead and directly in path

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

Sol 492 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 492 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Last edited by tahanson43206 (2020-08-11 09:23:34)

Offline

#725 2020-08-11 07:40:34

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,553

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: 9
Solar Longitude: 255.8   Sol Number: 493  Change is +.6 degrees

Previous SL:      255.2  Previous Sol: 492

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:   206,723,937 km Difference is +17946 <<= 690 km/hour at 9.6 on 8/11
Distance of Mars from the Sun is given by theskylive.com as:   206,705,991 km Difference is +13745 <<= 598 km/hour at 7.6 on 8/10
Distance of Mars from the Sun is given by theskylive.com as:   206,692,246 km Difference is +12160 <<= 509 km/hour at 8.6 on 8/09

Reference object: Star TYC 24-1042-1 Magnitude 10.94 Just ahead and slightly above path

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

Sol 493 is in Month 18 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 18 extends from Sol 475 through 501. See post 82 of Holidays topic for current details. <<== There are 27 days in Month 18
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 493 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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 18 of 24: Last month of Quarter 3 << There are 27 days in Month 18 <<== Proposed name: Perihelion

Last edited by tahanson43206 (2020-08-11 09:23:53)

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