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

tahanson43206 · 2020-04-10 04:46:04

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: 7
Solar Longitude: 180.7 Sol Number: 374 Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 180.1 Previous Sol: 373

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.
Distance of Mars from the Sun is given by this web site in kilometers: 218,980,786 km Difference -161952
Previous distance of Mars from the Sun in the previous report in km: 219,142,738 km Difference -191721

Sol 374 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 374 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 April 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

tahanson43206 · 2020-04-11 06:28:59

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: 7
Solar Longitude: 181.2 Sol Number: 374 Change is +.5 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 180.7 Previous Sol: 374 <<== Skip day arrived right on schedule

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.
Distance of Mars from the Sun is given by this web site in kilometers: 218,784,115 km Difference -196671
Previous distance of Mars from the Sun in the previous report in km: 218,980,786 km Difference -161952

Sol 374 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 374 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

tahanson43206 · 2020-04-12 07:23:24

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: 7
Solar Longitude: 181.8 Sol Number: 375 Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 181.2 Previous Sol: 374 <<== Skip day arrived right on schedule. The next will be around May 17th on Earth

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.
Distance of Mars from the Sun is given by this web site in kilometers: 218,593,760 km Difference -190355
Previous distance of Mars from the Sun in the previous report in km: 218,784,115 km Difference -196671

Sol 375 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 375 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

tahanson43206 · 2020-04-13 06:12:20

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: 7
Solar Longitude: 182.4 Sol Number: 376 Change is +.4 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 181.8 Previous Sol: 375 <<== Skip day arrived right on schedule. The next will be around May 17th on Earth

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.
Distance of Mars from the Sun is given by this web site in kilometers: 218,420,554 km Difference -173206
Previous distance of Mars from the Sun in the previous report in km: 218,593,760 km Difference -190355

Sol 376 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 376 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

tahanson43206 · 2020-04-14 06:05:02

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: 7
Solar Longitude: 182.9 Sol Number: 377 Change is +.5 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 182.4 Previous Sol: 376

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.
Distance of Mars from the Sun is given by this web site in kilometers: 218,239,762 km Difference -180792
Previous distance of Mars from the Sun in the previous report in km: 218,420,554 km Difference -173206

Sol 377 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 377 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

clark · 2020-04-15 00:29:40

Calendars are the result of agrarian societies and the need to plan seeding and harvest. Any future martian calendar should apply the same methodology.

Martian calendar will be based on a cyclical time scale based on Earth Approach, and Earth Retreat. Times of plenty equate to Earth approach and the ability to communicate more quickly, and for quicker transit; times of absence equate with longer communication times and longer transit or resupply.

Earth will hold the same importance as the Sun holds for Earth.

tahanson43206 · 2020-04-15 07:22:30

For clark re #581

Thank you for your historical perspective!

Indeed, there is an astronomical calendar in use, which you may examine at the French web site used for calculation of the current Mars Sol.

If you intend to be working on Mars as an astronomer, I am sure you will want to use the astronomical calendar.

However, for anyone wanting to run a business or a government agency, or to plan events in advance, the calender offered in this topic is an option.

The calendar has been following Mars around the Sun since the most recent New Years on Mars, and it has proven robust, reliable, simple to understand, and above all, suitable for business purposes.

It seems unlikely to me that anyone on Mars will be growing crops according to the Martian calendar, any more than folks will be growing crops according to the Lunar calendar on the Moon, or anywhere else in the Solar System.

If I (for example) were to set up a greenhouse on Mars, I would be highly likely to provide LED lighting designed for the crops planned, and will (most likely) use the dim sunlight available on the surface to recharge electricity storage devices.

A neighbor, on the other hand, may try to use natural Martian sunlight to grow crops, and for such a person the astronomical calendar might be of interest.

However, the neighbor will (most likely) schedule shipment of supplies and deliverables using a business calendar that everyone else is using.

In any case, thank you for your contribution to this topic!

(th)

Last edited by tahanson43206 (2020-04-15 07:23:35)

tahanson43206 · 2020-04-15 07:33:26

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: 7
Solar Longitude: 183.5 Sol Number: 378 Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 182.9 Previous Sol: 377

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.
Distance of Mars from the Sun is given by this web site in kilometers: 218,047,885 km Difference -191877
Previous distance of Mars from the Sun in the previous report in km: 218,239,762 km Difference -180792

Sol 378 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 378 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

clark · 2020-04-15 23:41:13

Thanks tahanson4306; I'll refer to you simply as TH for short.

What most calendar's miss is that time keeping and date keeping are largely subjective and entirely ego-centric experiences. We frame dates in relation to ourselves and our needs. Thus two book ends to bank on will be a Mars/Earth relationship. A Mars approach to Earth will have a real effect on people living/working on Mars just as a Earth retreat will have a real effect on people. This contextualizes and makes meaningful the date or time period. A calendar has to be anchored to these types of points. Additional reference points will be local weather conditions that require modification to behavior; seasonal dust storm patterns, solar maximum/minimum values, temps that equate to martian winter or summer that have material effects on hardware or interaction with the local environment result in a more meaningful calendar or time keeping system

June *means* something, inherently, in and of itself. We have shared reference points that allow the calendar to act as a communication tool to express the experience of time. Every Martian calendar will fail unless it includes this core component.

Second month of the 3rd quarter and 2nd half has no context or reference for a shared experience. Earth Fall, Feb (or Earth Rise, Feb) achieves the same concept of a 24 month calendar that roughly translates to a terran counterpart without over-complicating the terminology. Just a thought.

tahanson43206 · 2020-04-16 06:37:58

For clark re #584

Thank you for your continued interest in the topic of a calendar for Mars.

I went back to look at a little bit of your participation in the forum since » 2001-09-20 11:30:29

The impression I get is of a person who enjoys a good dispute.

This topic is not a particularly good place for that behavior.

If you want to make a contribution to the development of a calendar for Martians, you could do so, but it would require a change of attitude.

A printed calendar for use on Mars would (as I am seeing it) combine the Astronomical format with the Business format in progress here.

All segments of time would (surely) have names.

You can see some early thinking about names in this post in RobertDyck's Holidays topic:
http://newmars.com/forums/viewtopic.php … 53#p153653

In the end, I decided that worrying about names for the months was a waste of time.

The current activity underway is a Sol-by-Sol proof of the viability of the Business format for a Martian Calendar.

In each daily post, you can see the Astronomical calendar represented by quotation from the French web site which is the primary reference.

If you would like to make a meaningful and useful contribution to the development of this topic, you are certainly welcome to do so.

Mars is moving resolutely around the Sun, with an appointment to reach Longitude 0 once again.

At the end of the current Martian year, if all continues as it has been going, this forum will see the arrival of the long New Years Eve,, which will allow the Business calendar to align with the Astronomical calendar once again.

(th)

tahanson43206 · 2020-04-16 06:45:16

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: 7
Solar Longitude: 184.1 Sol Number: 379 Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 183.5 Previous Sol: 378

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.
Distance of Mars from the Sun is given by this web site in kilometers: 217,873,948 km Difference -173937
Previous distance of Mars from the Sun in the previous report in km: 218,047,885 km Difference -191877

Sol 379 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 379 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

clark · 2020-04-17 00:45:31

Dear TH,

I appreciate your contributions. Your assessment is misguided. Enjoy yourself alone. Plenty of sand on the beach for everyone to have their own sandcastle.

Beware the tide.

tahanson43206 · 2020-04-17 04:32:59

Martian Year: 35 Martian Month in 12 month format: 7
Solar Longitude: 184.7 Sol Number: 380 Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 184.1 Previous Sol: 379

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.
Distance of Mars from the Sun is given by this web site in kilometers: 217,711,074 km Difference -162874
Previous distance of Mars from the Sun in the previous report in km: 217,873,948 km Difference -173937

Sol 380 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 380 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

tahanson43206 · 2020-04-17 14:43:04

For clark re #587

Your partial quote intrigue me. I correctly associated Shakespeare with the quote, but became temporarily confused by the "Ides of March", which is from the same play. Google kindly came up with the correct phrase I was remembering:

William Shakespeare Quotes. There is a tide in the affairs of men, Which taken at the flood, leads on to fortune. Omitted, all the voyage of their life is bound in shallows and in miseries. On such a full sea are we now afloat.

Your invocation of Shakespeare for the month naming problem is inspiring!

There are two sets of months which need names. The astronomical months ( 1 through 12 ) are of varying length, based as they are upon the allocation of 30 degrees of longitude to each. It would make perfect sense to the names of famous astronomers to be assigned to these as place holders, until the people of Mars can hold a referendum to chose the "official" names they prefer.

It is the 24 months of the business calendar that I am thinking of for Shakespearean source, and since the current working method is to associate the months with the numbers 1-24, or the letters of the English alphabet A-Z, it is possible to come up with names recognizable to many English speakers, and perhaps a few speakers of other languages.

Romeo and Juliet come first to (my) mind.

Falstaff is next, but Portia is close behind.

At this point, I asked Mr. Google for assistance, and discovered a number of lists.

Wikipedia has two citations .... one covers A-K, and the second L-Z.

The Britannica would be expected to offer a list, and it does.

One of the alternative futures which can arise from the current initiative is a money raising undertaking by and on behalf of the Mars Society.

Your contact here has re-awakened my interest in this project.

It seems to me that a three part calendar might be of greatest value to a "real" Martian resident, especially one who came from Earth and has memories of friends and family still bound to the Terran calendar.

I think the pages of the calendar would most usefully reflect the business calendar, so I will assume that is the foundation of the structure.

However, each Sol entry can contain the corresponding Earth day and month, as well as the Astronomical month and celestial longitude.

That said, there are no Martians who might be willing to invest in such a calendar.

Instead, there are several billion Terrans, some of whom may be willing to invest in a novelty Martial calendar, especially if it provides the Terrestrial dates in an easily accessible form.

(th)

clark · 2020-04-17 23:04:27

I did not mean to cite the Bard, but will accept the association. What many here have missed, in my long years lingering have observed, is that our dream of Mars is bereft of passion. So many paint in the black and white of mathematical formula, make chromatic a scientific theory of possibility, outline an antiseptic uncaring image of a world with no connection to history or to emotion.

Will we sail a 100 million miles to create a calendar that commemorates long dead terran scientists for no other reason than to be different from our Terran birth? No. Mars will adopt a calendar that facilitates business, as you identify, but recognizes a meaningful structure based on local conditions. Earth Rise, Earth Fall. If you think me wrong, our own earth calendar is based on the same concept of Sun Rise, and Sun Fall as it dictates the results of a society dependent on agriculture. Mars will be dependent on the Earth for any length of predictable future in the same way.

In a Mars/Earth business relationship, the actual dates are not important. The time lag and the relationship of conjunction is, which again goes back to why Earth Rise (getting closer) and Earth Fall (moving away) is a more critical element for any calendar.

Something to chew on.

Either way, kudos on the commitment to your calendar. The only thing missing, in my opinion, is something that allows people to actually connect. Halves and Quarters are great mathematical constructs, but Friday night is something we all relate to more than Day 5 of 7, Second half, Third iteration of Four in the Seventh Month of Twelve.

Terraformer · 2020-04-18 02:41:43

Ironic. Given that conjunctions and oppositions will be key dates for space-based civilisations, their calenders will end up looking like astrological charts.

tahanson43206 · 2020-04-18 06:45:59

For clark and Terraformer ...

Thank you for adding to this topic!

I would like to see an attractive product come out of this sustained initiative. The Mars Society could be the beneficiary, and the customers who buy the calendar for their young relatives will be stimulating the imaginations of the next generation at an early age.

Terraformer, your post #591 contains a hint of an artistic direction to look .... artists have been having a field day with astrological signs on Earth for thousands of years. There is an entire new tapestry available for artistry depicting imaginary Martian creatures for the 36 available month names.

(th)

tahanson43206 · 2020-04-18 06:51:01

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: 7
Solar Longitude: 185.2 Sol Number: 381 Change is +.5 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 184.7 Previous Sol: 380

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.
Distance of Mars from the Sun is given by this web site in kilometers: 217,515,434 km Difference -195640
Previous distance of Mars from the Sun in the previous report in km: 217,711,074 km Difference -162874

Sol 381 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 381 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

tahanson43206 · 2020-04-19 06:18:01

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: 7
Solar Longitude: 185.8 Sol Number: 382 Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 185.2 Previous Sol: 381

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.
Distance of Mars from the Sun is given by this web site in kilometers: 217,341,980 km Difference -173454
Previous distance of Mars from the Sun in the previous report in km: 217,515,434 km Difference -195640

Sol 382 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 382 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

Last edited by tahanson43206 (2020-04-19 06:18:45)

tahanson43206 · 2020-04-20 12:47:47

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: 7
Solar Longitude: 186.4 Sol Number: 383 Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 185.8 Previous Sol: 382

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.
Distance of Mars from the Sun is given by this web site in kilometers: 217,117,358 km Difference -224622
Previous distance of Mars from the Sun in the previous report in km: 217,341,980 km Difference -173454

Sol 383 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 383 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

tahanson43206 · 2020-04-21 07:31:01

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: 7
Solar Longitude: 186.9 Sol Number: 384 Change is +.5 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 186.4 Previous Sol: 383

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.
Distance of Mars from the Sun is given by this web site in kilometers: 216,980,216 km Difference -137142
Previous distance of Mars from the Sun in the previous report in km: 217,117,358 km Difference -224622

Sol 384 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 384 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

tahanson43206 · 2020-04-22 07:15:01

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: 7
Solar Longitude: 187.5 Sol Number: 385 Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 186.9 Previous Sol: 384

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.
Distance of Mars from the Sun is given by this web site in kilometers: 216,807,096 km Difference -173120
Previous distance of Mars from the Sun in the previous report in km: 216,980,216 km Difference -137142

Sol 385 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 385 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

tahanson43206 · 2020-04-23 07:50:30

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: 7
Solar Longitude: 188.1 Sol Number: 386 Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 187.5 Previous Sol: 385

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.
Distance of Mars from the Sun is given by this web site in kilometers: 216,628,666 km Difference -178430
Previous distance of Mars from the Sun in the previous report in km: 216,807,096 km Difference -173120

Sol 386 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 386 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

tahanson43206 · 2020-04-24 04:47:40

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: 7
Solar Longitude: 188.7 Sol Number: 387 Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 188.1 Previous Sol: 386

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.
Distance of Mars from the Sun is given by this web site in kilometers: 216,477,338 km Difference -151328
Previous distance of Mars from the Sun in the previous report in km: 216,628,666 km Difference -178430

Sol 387 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 387 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

tahanson43206 · 2020-04-25 08:49:36

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: 7
Solar Longitude: 189.3 Sol Number: 388 Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 188.7 Previous Sol: 387

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.
Distance of Mars from the Sun is given by this web site in kilometers: 216,276,099 km Difference -201239
Previous distance of Mars from the Sun in the previous report in km: 216,477,338 km Difference -151328

Sol 388 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 388 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 May 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 14 of 24: Second month of the 3rd Quarter and 2nd Half

New Mars Forums

Announcement

#576 2020-04-10 04:46:04

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

#577 2020-04-11 06:28:59

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

#578 2020-04-12 07:23:24

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

#579 2020-04-13 06:12:20

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

#580 2020-04-14 06:05:02

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

#581 2020-04-15 00:29:40

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

#582 2020-04-15 07:22:30

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

#583 2020-04-15 07:33:26

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

#584 2020-04-15 23:41:13

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

#585 2020-04-16 06:37:58

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

#586 2020-04-16 06:45:16

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

#587 2020-04-17 00:45:31

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

#588 2020-04-17 04:32:59

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

#589 2020-04-17 14:43:04

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

#590 2020-04-17 23:04:27

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

#591 2020-04-18 02:41:43

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

#592 2020-04-18 06:45:59

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

#593 2020-04-18 06:51:01

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

#594 2020-04-19 06:18:01

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

#595 2020-04-20 12:47:47

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

#596 2020-04-21 07:31:01

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

#597 2020-04-22 07:15:01

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

#598 2020-04-23 07:50:30

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

#599 2020-04-24 04:47:40

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

#600 2020-04-25 08:49:36

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

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