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#1401 2022-04-12 07:11:56

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/15/27 Friday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/12 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 7 <<== The Astronomical month will increment when longitude reaches 210 degrees

Solar Longitude: 207.0 Sol Number: 417  Change in degrees is +.6
Previous SL:      206.4 Previous Sol:416
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   211,664,954 km [25.9 km/s] Difference is -136065 <= -5669 km/hour at 8.0 on 04/12 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,801,019 km [25.9 km/s] Difference is -137573 <= -5732 km/hour at 8.0 on 04/11 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,938,592 km [25.9 km/s] Difference is -138983 <= -5791 km/hour at 8.0 on 04/10 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Galaxies in and just above path: PGC 940107 above Day 0 about 12 hours ahead
TYC 5808-1336-1 Mg 12.09 RA 22h 00 56.4s directly in path Day 0 about 17 hours ahead - Day 1 - about 5 hours past Mars
HIP 108647 RA 22h 00m 38.2s below path Day 0 about 14 hours ahead - Day 1 still visible near lower edge of the screen
---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/12 259,742,069  (decrease)
Earth Distance 2022/04/11 260,650,555  (decrease)
Earth Distance 2022/04/10 261,478,666  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

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

Sol 417 is in Month 15 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  15 extends from Sol 391 through 418. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 417 is Friday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

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

Month 15 of 24: Third month of the 3rd Quarter and Second Half

Offline

#1402 2022-04-13 08:18:24

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/15/28 Saturday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/13 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One day note: This is the last day of Month 15

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 7 <<== The Astronomical month will increment when longitude reaches 210 degrees

Solar Longitude: 207.6 Sol Number: 418  Change in degrees is +.6
Previous SL:      207.0 Previous Sol:417
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   211,530,357 km [25.9 km/s] Difference is -134597 <= -5608 km/hour at 8.0 on 04/13 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,664,954 km [25.9 km/s] Difference is -136065 <= -5669 km/hour at 8.0 on 04/12 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,801,019 km [25.9 km/s] Difference is -137573 <= -5732 km/hour at 8.0 on 04/11 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: a trio of galaxies just below path: Lead is PGC 942447 RA 22h 06m 49.6s Day 0 about 14 hours ahead
PGC 940107 above Day 0 about 12 hours ahead  - Day 1 out of view on right
---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/13 258,815,555  (decrease)
Earth Distance 2022/04/12 259,742,069  (decrease)
Earth Distance 2022/04/11 260,650,555  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

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

Sol 418 is in Month 15 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  15 extends from Sol 391 through 418. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 418 is Saturday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
One day note: This is the last Sol of Month 15
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

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

Month 15 of 24: Third month of the 3rd Quarter and Second Half

Offline

#1403 2022-04-14 06:30:20

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/01 Sunday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/14 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One day note: This is the first day of Month 16

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 7 <<== The Astronomical month will increment when longitude reaches 210 degrees

Solar Longitude: 208.2 Sol Number: 419  Change in degrees is +.6
Previous SL:      207.6 Previous Sol:418
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   211,397,289 km [25.9 km/s] Difference is -133068 <= -5545 km/hour at 8.0 on 04/14 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,530,357 km [25.9 km/s] Difference is -134597 <= -5608 km/hour at 8.0 on 04/13 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,664,954 km [25.9 km/s] Difference is -136065 <= -5669 km/hour at 8.0 on 04/12 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: a pair of galaxies square in the path: PGC 946817 RA 22m 09m 29.6s and PGC 946594 - Day 0 about 18 hours ahead
PGC 942447 RA 22h 06m 49.6s Day 0 about 14 hours ahead - Day 1 about 5 hours behind
---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/14 257,998,888  (decrease)
Earth Distance 2022/04/13 258,815,555  (decrease)
Earth Distance 2022/04/12 259,742,069  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

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

Sol 419 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 419 is Sunday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
One day note: This is the first Sol of Month 16
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1404 2022-04-15 07:03:30

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/02 Monday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/15 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 7 <<== The Astronomical month will increment when longitude reaches 210 degrees

Solar Longitude: 208.9 Sol Number: 420  Change in degrees is +.7
Previous SL:      208.2 Previous Sol:419
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   211,265,681 km [26.0 km/s] Difference is -131608 <= -5484 km/hour at 8.0 on 04/15 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,397,289 km [25.9 km/s] Difference is -133068 <= -5545 km/hour at 8.0 on 04/14 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,530,357 km [25.9 km/s] Difference is -134597 <= -5608 km/hour at 8.0 on 04/13 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Vertical stack of galaxies about 10 hours ahead - below path top PGC 948810 RA 22h 11m 39.9s
PGC 946817 RA 22m 09m 29.6s and PGC 946594 - Day 0 about 18 hours ahead - Day 1 about 7 hours past
---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/15 257,096,999  (decrease)
Earth Distance 2022/04/14 257,998,888  (decrease)
Earth Distance 2022/04/13 258,815,555  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

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

Sol 420 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 420 is Monday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
One day note: This is the first Sol of Month 16
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1405 2022-04-16 06:28:54

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

SearchTerm:TodayOnMars
SearchTerm:CalendarForMars

Today on Mars: 0036/16/03 Tuesday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/16 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 7 <<== The Astronomical month will increment when longitude reaches 210 degrees

Solar Longitude: 209.5 Sol Number: 421  Change in degrees is +.6
Previous SL:      208.9 Previous Sol:420
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   211,135,715 km [26.0 km/s] Difference is -129966 <= -5415 km/hour at 8.0 on 04/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,265,681 km [26.0 km/s] Difference is -131608 <= -5484 km/hour at 8.0 on 04/15 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,397,289 km [25.9 km/s] Difference is -133068 <= -5545 km/hour at 8.0 on 04/14 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Galaxy below path PGC 953654 RA 22h 15m 42.3s Day 0 about 18 hours ahead
Day 0 about 10 hours ahead - below path top PGC 948810 RA 22h 11m 39.9s - Day 1 off the screen to right
---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/16 256,237,777  (decrease)
Earth Distance 2022/04/15 257,096,999  (decrease)
Earth Distance 2022/04/14 257,998,888  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 421 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 421 is Tuesday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
One day note: This is the first Sol of Month 16
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1406 2022-04-17 07:00:30

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/04 Wednesday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/17 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 210.1 Sol Number: 422  Change in degrees is +.6
Previous SL:      209.5 Previous Sol:421
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is [to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. That distance should be increasing to Aphelion.

Distance: Mars >> Sun per theskylive.com:   211,007,265 km [26.0 km/s] Difference is -128450 <= -5352 km/hour at 8.0 on 04/17 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,135,715 km [26.0 km/s] Difference is -129966 <= -5415 km/hour at 8.0 on 04/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,265,681 km [26.0 km/s] Difference is -131608 <= -5484 km/hour at 8.0 on 04/15 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Star above path: TYC 5806-1114-1 Mg 11.07 Day 0 about 9 hours ahead
Next up: A micro-Boomer! Below path: HIP 110065 Mg 8.7 RA 22h 17m 38.4s Day 0 about 9 hours ahead
PGC 953654 RA 22h 15m 42.3s Day 0 about 18 hours ahead  - Day 1 about 5 hours past Mars
---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/17 255,339,625  (decrease)
Earth Distance 2022/04/16 256,237,777  (decrease)
Earth Distance 2022/04/15 257,096,999  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 422 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 422 is Wednesday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
One day note: This is the first Sol of Month 16
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1407 2022-04-18 06:48:00

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/05 Thursday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/18 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 210.7 Sol Number: 423  Change in degrees is +.6
Previous SL:      210.1 Previous Sol:422
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   210,880,380 km [26.0 km/s] Difference is -126885 <= -5287 km/hour at 8.0 on 04/18 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,007,265 km [26.0 km/s] Difference is -128450 <= -5352 km/hour at 8.0 on 04/17 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,135,715 km [26.0 km/s] Difference is -129966 <= -5415 km/hour at 8.0 on 04/16 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: A trio of stars below path TYC 5807-423-1 Mg 9.69 RA 22h 20m 17.1s Day 0 - about 9 hours ahead
Next up: Micro-Boomer just above path HIP 110217 Mg 8.52 RA 22h 19m 33.6s Day 0 about 4.5 hours ahead
TYC 5806-1114-1 Mg 11.07 Day 0 about 9 hours ahead - Day 1 about 14 hours past
HIP 110065 Mg 8.7 RA 22h 17m 38.4s Day 0 about 9 hours ahead - Day 1 - about 14 hours past
---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/18 254,471,999  (decrease)
Earth Distance 2022/04/17 255,339,625  (decrease)
Earth Distance 2022/04/16 256,237,777  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 423 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 423 is Thursday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
One day note: This is the first Sol of Month 16
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1408 2022-04-19 06:35:20

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/06 Friday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/19 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 211.3 Sol Number: 424  Change in degrees is +.6
Previous SL:      210.7 Previous Sol:423
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   210,755,094 km [26.0 km/s] Difference is -125286 <= -5220 km/hour at 8.0 on 04/19 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,880,380 km [26.0 km/s] Difference is -126885 <= -5287 km/hour at 8.0 on 04/18 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   211,007,265 km [26.0 km/s] Difference is -128450 <= -5352 km/hour at 8.0 on 04/17 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Galaxy above path: PGC 964800 RA 22h 23m 41.5s Day 0 about 15 hours ahead
TYC 5807-423-1 Mg 9.69 RA 22h 20m 17.1s Day 0 - about 9 hours ahead Day 1 still visible in the extreme lower right corner of the view
HIP 110217 Mg 8.52 RA 22h 19m 33.6s Day 0 about 4.5 hours ahead - Day 1 out of view
---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/19 253,604,444  (decrease)
Earth Distance 2022/04/18 254,471,999  (decrease)
Earth Distance 2022/04/17 255,339,625  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 424 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 424 is Friday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
One day note: This is the first Sol of Month 16
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1409 2022-04-20 06:31:14

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/07 Saturday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/20 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 211.9 Sol Number: 425  Change in degrees is +.6
Previous SL:      211.3 Previous Sol:424
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   210,631,413 km [26.0 km/s] Difference is -123681 <= -5153 km/hour at 8.0 on 04/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,755,094 km [26.0 km/s] Difference is -125286 <= -5220 km/hour at 8.0 on 04/19 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,880,380 km [26.0 km/s] Difference is -126885 <= -5287 km/hour at 8.0 on 04/18 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Another galaxy - in path - PGC 967129 RA 22h 26m 10.3s - Day 0 about 10 hours ahead
PGC 964800 RA 22h 23m 41.5s Day 0 about 15 hours ahead - Day 1 about 9 hours past (right on the money!)
---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/20 252,738,777  (decrease)
Earth Distance 2022/04/19 253,604,444  (decrease)
Earth Distance 2022/04/18 254,471,999  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 425 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 425 is Saturday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1410 2022-04-21 06:39:35

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/08 Sunday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/21 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 212.5 Sol Number: 426  Change in degrees is +.6
Previous SL:      211.9 Previous Sol:425
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   210,509,353 km [26.1 km/s] Difference is -122060 <= -5086 km/hour at 8.0 on 04/21 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,631,413 km [26.0 km/s] Difference is -123681 <= -5153 km/hour at 8.0 on 04/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,755,094 km [26.0 km/s] Difference is -125286 <= -5220 km/hour at 8.0 on 04/19 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Four stars in square just below path: TYC 5814-214-1 Mg 11.52 RA 22h 29m 02.1s at far upper left Day 0 about 10 hours ahead
PGC 967129 RA 22h 26m 10.3s - Day 0 about 10 hours ahead - Day 1 about 14 hours behind (right on the money)

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/21 251,857,777  (decrease)
Earth Distance 2022/04/20 252,738,777  (decrease)
Earth Distance 2022/04/19 253,604,444  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 426 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 426 is Sunday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1411 2022-04-22 06:21:31

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/09 Monday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/22 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 213.1 Sol Number: 427  Change in degrees is +.6
Previous SL:      212.5 Previous Sol:426
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   210,388,820 km [26.1 km/s] Difference is -120533 <= -5086 km/hour at 8.0 on 04/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,509,353 km [26.1 km/s] Difference is -122060 <= -5086 km/hour at 8.0 on 04/21 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,631,413 km [26.0 km/s] Difference is -123681 <= -5153 km/hour at 8.0 on 04/20 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Two galaxies across path: Top: PGC 974801 RA 22h 32m 07.4s Day 0 about 15 hours ahead
TYC 5814-214-1 Mg 11.52 RA 22h 29m 02.1s at far upper left Day 0 about 10 hours ahead - Day 1 out of view below bottom of screen

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/22 250,999,999  (decrease)
Earth Distance 2022/04/21 251,857,777  (decrease)
Earth Distance 2022/04/20 252,738,777  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 427 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 427 is Monday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1412 2022-04-23 07:38:41

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/10 Tuesday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/23 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 213.7 Sol Number: 428  Change in degrees is +.6
Previous SL:      213.1 Previous Sol:427
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   210,270,174 km [26.1 km/s] Difference is -118646 <= -4944 km/hour at 8.0 on 04/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,388,820 km [26.1 km/s] Difference is -120533 <= -5086 km/hour at 8.0 on 04/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,509,353 km [26.1 km/s] Difference is -122060 <= -5086 km/hour at 8.0 on 04/21 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Another pair of galaxies across the path: Top PGC 977259 RA 22h 34m 47.8s Day 0 about 10 hours ahead
PGC 974801 RA 22h 32m 07.4s Day 0 about 15 hours ahead -Day 1 about 11 hours behind

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/23 250,086,666  (decrease)
Earth Distance 2022/04/22 250,999,999  (decrease)
Earth Distance 2022/04/21 251,857,777  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 428 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 428 is Tuesday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1413 2022-04-24 07:15:38

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/11 Wednesday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/24 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 214,3 Sol Number: 429  Change in degrees is +.6
Previous SL:      213.7 Previous Sol:428
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   210,153,081 km [26.1 km/s] Difference is -117093 <= -4879 km/hour at 8.0 on 04/24 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,270,174 km [26.1 km/s] Difference is -118646 <= -4944 km/hour at 8.0 on 04/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,388,820 km [26.1 km/s] Difference is -120533 <= -5086 km/hour at 8.0 on 04/22 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Above: Star 5814-1430-1 Mg 8.60 -Day 0 about 7 hours ahead
Next up:  Star TYC 5814-1428-1 Mg 10.36 RA 22h 37m 21.5s - Day 0 about 7 hours ahead
PGC 977259 RA 22h 34m 47.8s Day 0 about 10 hours ahead - Day 1 about 13 hours past

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/24 249,232,222  (decrease)
Earth Distance 2022/04/23 250,086,666  (decrease)
Earth Distance 2022/04/22 250,999,999  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 429 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 429 is Wednesday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1414 2022-04-24 10:15:45

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 29,309

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

So with the calendar would be the Julian version which is the year followed by the day count so as to be able to know where you are in the mars calendar year.
That said we are on 0036459 if I read the format correctly in that we are in the 16th month...

Offline

#1415 2022-04-25 06:53:46

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/12 Thursday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/25 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One Day Note: Per SpaceNut suggestion in Post #1414, this would be Julian day 0036430 on Mars.

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 215.0 Sol Number: 430  Change in degrees is +.7
Previous SL:      214.3 Previous Sol:429
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   210,037,670 km [26.1 km/s] Difference is -115411 <= -4809 km/hour at 8.0 on 04/25 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,153,081 km [26.1 km/s] Difference is -117093 <= -4879 km/hour at 8.0 on 04/24 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,270,174 km [26.1 km/s] Difference is -118646 <= -4944 km/hour at 8.0 on 04/23 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: slim pickings - One galaxy below path: PGC 932380 RA 22h 40m 38.3s - Day 0 about 9 hours ahead
Star 5814-1430-1 Mg 8.60 -Day 0 about 7 hours ahead - Day 1 at far right of view - about 17 hours behind
Star TYC 5814-1428-1 Mg 10.36 RA 22h 37m 21.5s - Day 0 about 7 hours ahead - Day 1 at far right of view

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/25 248,383,333  (decrease)
Earth Distance 2022/04/24 249,232,222  (decrease)
Earth Distance 2022/04/23 250,086,666  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 430 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 430 is Thursday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1416 2022-04-25 20:46:23

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 29,309

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

On Day Note: Per SpaceNut suggestion in Post #1414, this would be Julian day 0036430 on Mars.

We might drop the 2 lead zeros if we do not thing we will need them to shorten the display digit count.

Nice thou I was way off. Its one way to do schedules that make sense when we need to know where we are in a process. It also gives the means to do a count down once you set the first parameter for when the process starts.

We will use lots of different calendars to be able to keep work and other activities making sense as we adjust to mars time.

Offline

#1417 2022-04-26 07:00:48

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/13 Friday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/26 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 215.6 Sol Number: 431  Change in degrees is +.6 Julian date is: 0036431
Solar Longitude: 215.0 Sol Number: 430  Change in degrees is +.7 Julian date is: 0036430
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   209,923,959 km [26.1 km/s] Difference is -113711 <= -4738 km/hour at 8.0 on 04/26 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,037,670 km [26.1 km/s] Difference is -115411 <= -4809 km/hour at 8.0 on 04/25 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,153,081 km [26.1 km/s] Difference is -117093 <= -4879 km/hour at 8.0 on 04/24 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: An unlabeled asterism across the path: RA 22h 43m 10.5s about 10 hours ahead on Day 1
Next up: There are plenty of stars but none are marked. Dry hole! First time this has happened since this daily procedure started.
PGC 932380 RA 22h 40m 38.3s - Day 0 about 9 hours ahead - Day 1 still visible just above the bottom of the view - about 16 hours behind

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/26 247,514,444  (decrease)
Earth Distance 2022/04/25 248,383,333  (decrease)
Earth Distance 2022/04/24 249,232,222  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 431 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 431 is Friday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1418 2022-04-27 06:13:53

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/14 Saturday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/27 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 216.2 Sol Number: 432  Change in degrees is +.6 Julian date is: 0036432
Solar Longitude: 215.6 Sol Number: 431  Change in degrees is +.7 Julian date is: 0036431
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   209,811,976 km [26.1 km/s] Difference is -111983 <= -4666 km/hour at 8.0 on 04/27 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,923,959 km [26.1 km/s] Difference is -113711 <= -4738 km/hour at 8.0 on 04/26 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   210,037,670 km [26.1 km/s] Difference is -115411 <= -4809 km/hour at 8.0 on 04/25 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Unnamed asterism at 22h 46m 21.8s about 12 hours ahead
Next up: Star pair across path at 9 hour mark: Top TYC 5812-1284-1 Mg 10.96 RA 22h 45m 33.9s
Next up: Bottom and trailing TYC 5812-831-2 Mg 11.60 RA 22h 46m 20.8s
An unlabeled asterism across the path: RA 22h 43m 10.5s about 10 hours ahead on Day 1 - Day 1 still visible at the extreme right edge of the view

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/27 246,678,888  (decrease)
Earth Distance 2022/04/26 247,514,444  (decrease)
Earth Distance 2022/04/25 248,383,333  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 432 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 432 is Saturday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1419 2022-04-28 08:50:35

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/15 Sunday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/28 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 216.8 Sol Number: 433  Change in degrees is +.6 Julian date is: 0036433
Solar Longitude: 216.2 Sol Number: 432  Change in degrees is +.7 Julian date is: 0036432
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   209,701,650 km [26.1 km/s] Difference is -110326 <= -4597 km/hour at 8.0 on 04/28 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,811,976 km [26.1 km/s] Difference is -111983 <= -4666 km/hour at 8.0 on 04/27 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,923,959 km [26.1 km/s] Difference is -113711 <= -4738 km/hour at 8.0 on 04/26 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Star right at 9 hour marker: TYC 5813-1247-1 Mg 11.73 RA 22h 48m 59.2s Day 0 -
Unnamed asterism at 22h 46m 21.8s about 12 hours ahead - Day 1 about 12 hours behind
Star pair across path at 9 hour mark: Top TYC 5812-1284-1 Mg 10.96 RA 22h 45m 33.9s - Day 1 still visible but just barely on far right
Bottom and trailing TYC 5812-832-1 Mg 11.60 RA 22h 46m 20.8s  - Still visible in lower right on Day 1

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/28 245,730,000  (decrease)
Earth Distance 2022/04/27 246,678,888  (decrease)
Earth Distance 2022/04/26 247,514,444  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 433 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 433 is Sunday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Offline

#1420 2022-04-29 06:53:07

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/16 Monday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/29 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 217.4 Sol Number: 434  Change in degrees is +.6 Julian date is: 0036434
Solar Longitude: 216.8 Sol Number: 433  Change in degrees is +.6 Julian date is: 0036433
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   209,593,191 km [26.2 km/s] Difference is -108459 <= -4519 km/hour at 8.0 on 04/29 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,701,650 km [26.1 km/s] Difference is -110326 <= -4597 km/hour at 8.0 on 04/28 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,811,976 km [26.1 km/s] Difference is -111983 <= -4666 km/hour at 8.0 on 04/27 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Star TYC 5813-421-1 Mg 12.32 RA 22h 52m 05.0s in path Day 0 about 11 hours ahead
Star right at 9 hour marker: TYC 5813-1247-1 Mg 11.73 RA 22h 48m 59.2s Day 0 - Day 1 Out of view on right

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/29 244,936,666  (decrease)
Earth Distance 2022/04/28 245,730,000  (decrease)
Earth Distance 2022/04/27 246,678,888  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 434 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 434 is Monday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1421 2022-04-30 06:27:05

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/17 Tuesday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/04/30 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 218.0 Sol Number: 435  Change in degrees is +.6 Julian date is: 0036435
Solar Longitude: 217.4 Sol Number: 434  Change in degrees is +.6 Julian date is: 0036434
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   209,486,445 km [26.2 km/s] Difference is -106746 <= -4448 km/hour at 8.0 on 04/30 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,593,191 km [26.2 km/s] Difference is -108459 <= -4519 km/hour at 8.0 on 04/29 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,701,650 km [26.1 km/s] Difference is -110326 <= -4597 km/hour at 8.0 on 04/28 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Star at (about) 12 hours ahead just above path: TYC 5813-797-1 Mg 11.94 RA 22h 54m 50.5s
Next up: Star and Galaxy combination: TYC 5813-511-1 Mg 12.16 RA 22h 54m 24.3s PGC 1006607 Day 0 at 9 hour marker
TYC 5813-421-1 Mg 12.32 RA 22h 52m 05.0s in path Day 0 about 11 hours ahead - Day 1 Still visible at (about) hour 12

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/04/30 244,095,333  (decrease)
Earth Distance 2022/04/29 244,936,666  (decrease)
Earth Distance 2022/04/28 245,730,000  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 435 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 435 is Tuesday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1422 2022-05-01 08:08:37

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/18 Wednesday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/05/01 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 218.7 Sol Number: 436  Change in degrees is +.7 Julian date is: 0036436
Solar Longitude: 218.0 Sol Number: 435  Change in degrees is +.6 Julian date is: 0036435
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   209,381,449 km [26.2 km/s] Difference is -104996 <= -4374 km/hour at 8.0 on 05/01 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,486,445 km [26.2 km/s] Difference is -106746 <= -4448 km/hour at 8.0 on 04/30 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,593,191 km [26.2 km/s] Difference is -108459 <= -4519 km/hour at 8.0 on 04/29 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Not much ... unlabeled star in minor asterism at RA 22h 57m 48.8s about 10 hours ahead on Day 0 just below path
Star at (about) 12 hours ahead just above path: TYC 5813-797-1 Mg 11.94 RA 22h 54m 50.5s - Day 1 about 12 hours past
TYC 5813-511-1 Mg 12.16 RA 22h 54m 24.3s PGC 1006607 Day 0 at 9 hour marker - Day 1 still visible at (about) 15 hours past

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/05/01 243,182,154  (decrease)
Earth Distance 2022/04/30 244,095,333  (decrease)
Earth Distance 2022/04/29 244,936,666  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 436 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 436 is Wednesday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

Offline

#1423 2022-05-02 08:58:37

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/19 Thursday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/05/02 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 219.3 Sol Number: 437  Change in degrees is +.6 Julian date is: 0036437
Solar Longitude: 218.7 Sol Number: 436  Change in degrees is +.7 Julian date is: 0036436
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   209,269,319 km [26.2 km/s] Difference is -112130 <= -4296 km/hour at 10.1 on 05/02 (time 10:06)
Distance: Mars >> Sun per theskylive.com:   209,381,449 km [26.2 km/s] Difference is -104996 <= -4374 km/hour at 8.0 on 05/01 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,486,445 km [26.2 km/s] Difference is -106746 <= -4448 km/hour at 8.0 on 04/30 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: A pair of galaxies in the path and about 15 hours ahead on Day 0: PGC 1010414 and PGC 1010348 RA 23h 01m 08.8s
Next up: Galaxy below path: PGC 1007429 RA 23h 01m 10.8s Day 0 about 10 hours ahead -
star in minor asterism at RA 22h 57m 48.8s about 10 hours ahead on Day 0 just below path - Day 1 still visible in lower right of view

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/05/02 242,295,666  (decrease)
Earth Distance 2022/05/01 243,182,154  (decrease)
Earth Distance 2022/04/30 244,095,333  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 437 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 437 is Thursday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Offline

#1424 2022-05-03 07:17:25

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/20 Friday <<-- Days of the week offset 4 with Earth. 
---
Today on Earth: 2022/05/03 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 219.9 Sol Number: 438  Change in degrees is +.6 Julian date is: 0036438
Solar Longitude: 219.4 Sol Number: 437  Change in degrees is +.6 Julian date is: 0036437
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   209,172,687 km [26.2 km/s] Difference is -096632 <= -4220 km/hour at 9.0 on 05/03 (time 9:00)
Distance: Mars >> Sun per theskylive.com:   209,269,319 km [26.2 km/s] Difference is -112130 <= -4296 km/hour at 10.1 on 05/02 (time 10:06)
Distance: Mars >> Sun per theskylive.com:   209,381,449 km [26.2 km/s] Difference is -104996 <= -4374 km/hour at 8.0 on 05/01 (time 8:00)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: TYC 5820-143-1 Mg 11.14 RA 23h 03m 33.2s in path and about 12 hours ahead on Day 0
A pair of galaxies in the path and about 15 hours ahead on Day 0: PGC 1010414 and PGC 1010346 RA 23h 01m 08.8s - Day 1 about 8 hours past
Galaxy below path: PGC 1007429 RA 23h 01m 10.8s Day 0 about 10 hours ahead - Day 1 about 9 hours past

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/05/03 241,505,133  (decrease)
Earth Distance 2022/05/02 242,295,666  (decrease)
Earth Distance 2022/05/01 243,182,154  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 438 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 438 is Friday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

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#1425 2022-05-04 07:53:40

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 18,137

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

Today on Mars: 0036/16/21 Saturday <<-- Days of the week offset 4 with Earth.  (count from Mars to Earth! Adjusted 2022/05/04)
---
Today on Earth: 2022/05/04 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for oppositon/perigee/aphelion

Martian Year: 36  Martian Month in 12 month format: 8 <<== The Astronomical month will increment when longitude reaches 240 degrees

Solar Longitude: 220.5 Sol Number: 439  Change in degrees is +.6 Julian date is: 0036439
Solar Longitude: 219.9 Sol Number: 438  Change in degrees is +.6 Julian date is: 0036438
---
Note that Solar Longitude measurement varies as a function of location in orbit. 

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

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

Note on data below: The figure quoted after distance is a rate of progress along the orbital path [exact meaning to be determined]
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

Distance: Mars >> Sun per theskylive.com:   209,077,292 km [26.2 km/s] Difference is -095395 <= -4148 km/hour at 8.0 on 05/04 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   209,172,687 km [26.2 km/s] Difference is -096632 <= -4220 km/hour at 9.0 on 05/03 (time 9:00)
Distance: Mars >> Sun per theskylive.com:   209,269,319 km [26.2 km/s] Difference is -112130 <= -4296 km/hour at 10.1 on 05/02 (time 10:06)
---
Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
2022/01/19 - All current (existing) stellar catalogs are computed with reference to the Earth.  Another civilization would use it's planet as reference.
Perhaps a Milky Way frame of reference will become necessary at some point. The Earth is as good a Zero point as any, for humans.

Next up: Star just below path: TYC 5248-741-1 Mg 11.37 RA 23h 7m 13.3s Day 0 at least 15 hours ahead.

Mars itself is showing location of: RA 23h 04m 54.1s In the next 24 hours of Earth time, Mars will advance through 23h 7m 13.3s to: ?
Thinking out loud here: if an orbit is 668 Earth Days, then each Earth day Mars should advance 360/668 degrees, or .5389. The actual rate varies (ellipse)
However, Earth is moving simultaneously, so where Mars appears against the celestial background will vary over the Mars year.

TYC 5820-143-1 Mg 11.14 RA 23h 03m 33.2s in path and about 12 hours ahead on Day 0 - Day 1 still visible at extreme right of screen about 11 hours past

---

As a general observation ... I've become increasingly interested in knowing what the larger view of the sky might be like.
The site: theskylive.com does a terrific job of matching the view from Earth towards Mars, against a background of actual astronomical plates.
I wish there were a way (or rather, I wish I ** knew ** about a way that may exist) to enlarge the view until the entire galaxy is in view.
Update 2021/07/30 I wrote to an astronomer to ask if there might be a web site with a view showing the galaxy in context of a given view.
Update 2022/01/22 What I'm asking for is a "Zoom Out" feature.  If anyone knows of such a service, please contact the NewMars portal.

Note: The curve of the path of Mars as seen against the background of stars is now a line trending upward and East as seen from Earth
In recent days, the curve has been slowly bending up , and on 2022/04/11, it is inclining upward at about 10 degrees

Earth Distance 2022/05/04 240,633,666  (decrease)
Earth Distance 2022/05/03 241,505,133  (decrease)
Earth Distance 2022/05/02 242,295,666  (decrease)
---
Mars and Earth are coming closer after Conjunction.  The two planets were on opposite sides of the Sun at Earth Distance maximum October 2021.

Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:240,000,000/17:270,000,000]

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

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

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1
---
Sol 439 is in Month 16 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 411
Month  16 extends from Sol 919 through 446. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 15
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 439 is Saturday  in the Proposed Business calendar for Mars.  Sol 411 was a skip day on Earth.
---
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The last Skip Day occurred in April 2022 (on:6th) on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected in May 2022 (on 13th) on Earth.

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

For current weather on Mars see:

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

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

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

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

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

Standard Month in Mars Business Calendar
Su    Mo    Tu    We    Th    Fr    Sa
1       2      3      4      5      6      7
8       9    10     11    12    13    14
15    16    17     18    19    20    21
22    23    24     25    26    27    28

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

Month 16 of 24: Fourth month of the 3rd Quarter and Second Half

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