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#1551 2022-09-09 06:45:34

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/06 Friday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/09 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 Earth Calendar]

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

One day note: This is the First Sol of Astronomical Month 11

Martian Year: 36  Martian Month in 12 month format: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 300.5 Sol Number: 563  Change in degrees is +.6 Julian date is: J0036563
Solar Longitude: 299.9 Sol Number: 562  Change in degrees is +.6 Julian date is: J0036562
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   213,079,160 km [25.8 km/s] Difference is +148737 <= 6197 km/hour at 8.0 on 09/09 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   212,930,423 km [25.8 km/s] Difference is +147368 <= 6140 km/hour at 8.0 on 09/08 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   212,783,055 km [25.8 km/s] Difference is +146074 <= 6086 km/hour at 8.0 on 09/07 (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 1641240 RA 04h 37m 54.1s Day 0 - just above the 13 hour marker
: Star TYC 1278-1849-1 Mg 12.11 RA 04h 36m 10.4s Ahead of 13 hour marker on Day 1 - Just past the 6.5 hour marker
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/09 136,036,111  (decrease)
Earth Distance 2022/09/08 136,919,172  (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.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 563 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 563 is Friday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1552 2022-09-10 06:14:43

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/07 Saturday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/10 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 301.1 Sol Number: 564  Change in degrees is +.6 Julian date is: J0036564
Solar Longitude: 300.5 Sol Number: 563  Change in degrees is +.6 Julian date is: J0036563
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   213,229,208 km [25.7 km/s] Difference is +150048 <= 6252 km/hour at 8.0 on 09/10 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   213,079,160 km [25.8 km/s] Difference is +148737 <= 6197 km/hour at 8.0 on 09/09 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   212,930,423 km [25.8 km/s] Difference is +147368 <= 6140 km/hour at 8.0 on 09/08 (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: Lots of choices: TYC's 1279-471-1, 1279-492-1, 1279-461-1, 1278-73-1 in a row just above path about 13 hours ahead on Day 0
: PGC 1641240 RA 04h 37m 54.1s Day 0 - just above the 13 hour marker - Day 1 between 6.5 and 13 hour markers
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/10 135,186,049  (decrease)
Earth Distance 2022/09/09 136,036,111  (decrease)
Earth Distance 2022/09/08 136,919,172  (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.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 564 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 564 is Saturday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1553 2022-09-11 07:02:51

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/08 Sunday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/11 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 301.7 Sol Number: 565  Change in degrees is +.6 Julian date is: J0036565
Solar Longitude: 301.1 Sol Number: 564  Change in degrees is +.6 Julian date is: J0036564
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   213,380,577 km [25.7 km/s] Difference is +151369 <= 6307 km/hour at 8.0 on 09/11 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   213,229,208 km [25.7 km/s] Difference is +150048 <= 6252 km/hour at 8.0 on 09/10 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   213,079,160 km [25.8 km/s] Difference is +148737 <= 6197 km/hour at 8.0 on 09/09 (time 8:00)
---

Observation: The sky view is ** filled ** with objects and very few have been recorded and given identification by humans or their robot assistants
And! ** All ** the location assignments are from the perspective of Earth.  The entire catalog needs to be adjusted when inter-stellar travel begins
The work that lies ahead for the astronomical community is daunting - there is work ahead for centuries
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 13 hour marker: TYC 1279-516-1 Mg 9.57 RA 04h 42m 11.9s on Day 0
: TYC's 1279-471-1, 1279-492-1, 1279-461-1, 1278-73-1 in a row just above path about 13 hours ahead on Day 0 - Day 1 over markers 6.5h and 13h
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/11 134,285,590  (decrease)
Earth Distance 2022/09/10 135,186,049  (decrease)
Earth Distance 2022/09/09 136,036,111  (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.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 565 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 565 is Sunday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1554 2022-09-12 06:59:23

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/09 Monday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/12 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 302.3 Sol Number: 566  Change in degrees is +.6 Julian date is: J0036566
Solar Longitude: 301.7 Sol Number: 565  Change in degrees is +.6 Julian date is: J0036565
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   213,533,442 km [25.7 km/s] Difference is +152865 <= 6369 km/hour at 8.0 on 09/12 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   213,380,577 km [25.7 km/s] Difference is +151369 <= 6307 km/hour at 8.0 on 09/11 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   213,229,208 km [25.7 km/s] Difference is +150048 <= 6252 km/hour at 8.0 on 09/10 (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: star below path and way out front: TYC 1279-1732-1 Mg 10.63 RA 04h 45m 06.0s
: TYC 1279-516-1 Mg 9.57 RA 04h 42m 11.9s on Day 0 - Day 1 between 7 and 14 hour markers
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/12 133,415,969  (decrease)
Earth Distance 2022/09/11 134,285,590  (decrease)
Earth Distance 2022/09/10 135,186,049  (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.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 566 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 566 is Monday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1555 2022-09-13 06:49:44

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/10 Tuesday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/13 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 302.9 Sol Number: 567  Change in degrees is +.6 Julian date is: J0036567
Solar Longitude: 302.3 Sol Number: 566  Change in degrees is +.6 Julian date is: J0036566
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   213,687,106 km [25.7 km/s] Difference is +153744 <= 6406 km/hour at 8.0 on 09/13 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   213,533,442 km [25.7 km/s] Difference is +152865 <= 6369 km/hour at 8.0 on 09/12 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   213,380,577 km [25.7 km/s] Difference is +151369 <= 6307 km/hour at 8.0 on 09/11 (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: Two galaxies above and below path: PGC 1646523 RA 04h 46m 28.9s PGC 1647321 above Day 0 at 14 hour marker
: TYC 1279-1732-1 Mg 10.63 RA 04h 45m 06.0s  - Day 1 directly below 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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/13 132,549,777  (decrease)
Earth Distance 2022/09/12 133,415,969  (decrease)
Earth Distance 2022/09/11 134,285,590  (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.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 567 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 567 is Tuesday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1556 2022-09-15 10:03:38

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/12 Thursday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/15 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 304.0 Sol Number: 569  Change in degrees is +.5 Julian date is: J0036569
Solar Longitude: 303.5 Sol Number: 568  Change in degrees is +.6 Julian date is: J0036568
Solar Longitude: 302.9 Sol Number: 567  Change in degrees is +.6 Julian date is: J0036567
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   213,998,670 km [25.7 km/s] Difference is +156414 <= 6517 km/hour at 8.0 on 09/15 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   213,842,256 km [25.7 km/s] Difference is +155070 <= 6461 km/hour at 8.0 on 09/14 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   213,687,106 km [25.7 km/s] Difference is +153744 <= 6406 km/hour at 8.0 on 09/13 (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 Star above path and above 14 hour marker on Day 0 - TYC 1292-648-1 Mg 11.01 RA 04h 50m 15.1s
22352 Mg 7.02 RA 04h 48m 43.9s below path and ahead of the 14 hour marker on Day 0 - On Day 1 just below the 7 hour marker
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/15 130,685,555  (decrease)
Earth Distance 2022/09/14 131,639,272  (decrease)
Earth Distance 2022/09/13 132,549,777  (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.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 569 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 569 is Thursday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1557 2022-09-16 07:10:00

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/13 Friday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/16 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 304.6 Sol Number: 570  Change in degrees is +.6 Julian date is: J0036570
Solar Longitude: 304.0 Sol Number: 569  Change in degrees is +.5 Julian date is: J0036569
Solar Longitude: 303.5 Sol Number: 568  Change in degrees is +.6 Julian date is: J0036568
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   214,156,221 km [25.6 km/s] Difference is +157551 <= 6565 km/hour at 8.0 on 09/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   213,998,670 km [25.7 km/s] Difference is +156414 <= 6517 km/hour at 8.0 on 09/15 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   213,842,256 km [25.7 km/s] Difference is +155070 <= 6461 km/hour at 8.0 on 09/14 (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 Not Much! TYC 1292-596-1 Mg 11.70 RA 04h 52m 11.5s just below path right at 14 hour marker on Day 0
Day 0 - TYC 1292-648-1 Mg 11.01 RA 04h 50m 15.1s  - Day 1 above 7 hour marker
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/16 129,918,056  (decrease)
Earth Distance 2022/09/15 130,685,555  (decrease)
Earth Distance 2022/09/14 131,639,272  (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.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 570 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 570 is Thursday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1558 2022-09-17 06:31:51

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/14 Saturday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/17 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 305.2 Sol Number: 571  Change in degrees is +.6 Julian date is: J0036571
Solar Longitude: 304.6 Sol Number: 570  Change in degrees is +.6 Julian date is: J0036570
Solar Longitude: 304.0 Sol Number: 569  Change in degrees is +.5 Julian date is: J0036569
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   214,314,995 km [25.6 km/s] Difference is +158774 <= 6615 km/hour at 8.0 on 09/17 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   214,156,221 km [25.6 km/s] Difference is +157551 <= 6565 km/hour at 8.0 on 09/16 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   213,998,670 km [25.7 km/s] Difference is +156414 <= 6517 km/hour at 8.0 on 09/15 (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 and well ahead of 16 hour marker: TYC 1292-4-1 Mg 9.14 RA 04h 54m 26.0s Day 0 -
! TYC 1292-596-1 Mg 11.70 RA 04h 52m 11.5s just below path right at 14 hour marker on Day 0 - Day 1 just below 7.5 hour marker
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/17 129,065,828  (decrease)
Earth Distance 2022/09/16 129,918,056  (decrease)
Earth Distance 2022/09/15 130,685,555  (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.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 571 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 571 is Saturday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1559 2022-09-18 06:48:11

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/15 Sunday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/18 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 305.8 Sol Number: 572  Change in degrees is +.6 Julian date is: J0036572
Solar Longitude: 305.2 Sol Number: 571  Change in degrees is +.6 Julian date is: J0036571
Solar Longitude: 304.6 Sol Number: 570  Change in degrees is +.6 Julian date is: J0036570
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   214,474,944 km [25.6 km/s] Difference is +159949 <= 6665 km/hour at 8.0 on 09/18 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   214,314,995 km [25.6 km/s] Difference is +158774 <= 6615 km/hour at 8.0 on 09/17 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   214,156,221 km [25.6 km/s] Difference is +157551 <= 6565 km/hour at 8.0 on 09/16 (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 - lots of labels! Two micro-Boomers below path: HIP 22947 Mg 7.32 RA 04h 56m 14.2s Day 0 ahead of 15 hour marker
TYC 1292-4-1 Mg 9.14 RA 04h 54m 26.0s Day 0 - On Day 1, 1292-4-1 is almost directly above 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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/18 128,181,212  (decrease)
Earth Distance 2022/09/17 129,065,828  (decrease)
Earth Distance 2022/09/16 129,918,056  (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.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 572 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 572 is Sunday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1560 2022-09-19 08:23:53

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/16 Monday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/19 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 306.4 Sol Number: 573  Change in degrees is +.6 Julian date is: J0036573
Solar Longitude: 305.8 Sol Number: 572  Change in degrees is +.6 Julian date is: J0036572
Solar Longitude: 305.2 Sol Number: 571  Change in degrees is +.6 Julian date is: J0036571
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   214,636,086 km [25.6 km/s] Difference is +161142 <= 6714 km/hour at 8.0 on 09/19 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   214,474,944 km [25.6 km/s] Difference is +159949 <= 6665 km/hour at 8.0 on 09/18 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   214,314,995 km [25.6 km/s] Difference is +158774 <= 6615 km/hour at 8.0 on 09/17 (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: Star just above path and well ahead of 15 hour marker: TYC 1293-977-1 Mg 11.52 RA 04h 58m 24.5s Day 0 -
: HIP 22947 Mg 7.32 RA 04h 56m 14.2s Day 0 ahead of 15 hour marker  - Day 1 below the 7.5 hour marker
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/19 127,246,588  (decrease)
Earth Distance 2022/09/18 128,181,212  (decrease)
Earth Distance 2022/09/17 129,065,828  (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.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 573 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 573 is Monday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1561 2022-09-20 08:15:38

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/17 Tuesday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/20 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 307.0 Sol Number: 574  Change in degrees is +.6 Julian date is: J0036574
Solar Longitude: 306.4 Sol Number: 573  Change in degrees is +.6 Julian date is: J0036573
Solar Longitude: 305.8 Sol Number: 572  Change in degrees is +.6 Julian date is: J0036572
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   214,798,287 km [25.6 km/s] Difference is +162201 <= 6758 km/hour at 8.0 on 09/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   214,636,086 km [25.6 km/s] Difference is +161142 <= 6714 km/hour at 8.0 on 09/19 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   214,474,944 km [25.6 km/s] Difference is +159949 <= 6665 km/hour at 8.0 on 09/18 (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: A trio of stars ascending above path: TYC 1293-1658-1 Mg 11.80 RA 04h 59m 32.7s Day 0 just above 15 hour marker
: TYC 1293-977-1 Mg 11.52 RA 04h 58m 24.5s Day 0 - Day 1 just above Mars
: HIP 22947 Mg 7.32 RA 04h 56m 14.2s Day 0 ahead of 15 hour marker  - Day 1 below the 7.5 hour marker - Day 2 at far right lower corner
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/20 126,375,942  (decrease)
Earth Distance 2022/09/19 127,246,588  (decrease)
Earth Distance 2022/09/18 128,181,212  (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.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 574 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 574 is Tuesday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1562 2022-09-21 06:51:27

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/18 Wednesday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/21 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 307.6 Sol Number: 575  Change in degrees is +.6 Julian date is: J0036575
Solar Longitude: 307.0 Sol Number: 574  Change in degrees is +.6 Julian date is: J0036574
Solar Longitude: 306.4 Sol Number: 573  Change in degrees is +.6 Julian date is: J0036573
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   214,961,641 km [25.5 km/s] Difference is +163354 <= 6806 km/hour at 8.0 on 09/21 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   214,798,287 km [25.6 km/s] Difference is +162201 <= 6758 km/hour at 8.0 on 09/20 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   214,636,086 km [25.6 km/s] Difference is +161142 <= 6714 km/hour at 8.0 on 09/19 (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: Way out there! TYC 1293-425-1 Mg 11.81 RA 05h 02m 15.3s above path and about 30 hours ahead - should be good for two days
: TYC 1293-1658-1 Mg 11.80 RA 04h 59m 32.7s Day 0 just above 15 hour marker - Day 1 Over the 7.5 hour marker
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/21 125,552,864  (decrease)
Earth Distance 2022/09/20 126,375,942  (decrease)
Earth Distance 2022/09/19 127,246,588  (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.
Table of estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 575 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 575 is Wednesday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1563 2022-09-21 09:31:23

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

This is a special item for the record, and for planning...

I asked Google to predict the next Mars Astronomical New Year event...

About 40,800,000 results (0.59 seconds)
As counted by earthly timekeepers, the current new year on Mars – Year 36 – begins on February 7, 2021. Just as on Earth, a year on Mars is defined as a single orbit around the sun. A Mars year lasts about 2 Earth-years (687 Earth-days). Thus the next Mars years will begin on December 26, 2022.

The Business Calendar for Mars is closing in one the end of the second complete Mars Year.

The upcoming 25th Anniversary Mars Convention is an opportunity to show the Proposed Business Calendar for Mars, in the waning Sols of Year 36.

I'd very much like to have a professional, commercial calendar available for sale, or at least download, by mid-December 2022.

(th)

Online

#1564 2022-09-22 06:36:12

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/19 Thursday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/22 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 308.2 Sol Number: 576  Change in degrees is +.6 Julian date is: J0036576
Solar Longitude: 307.6 Sol Number: 575  Change in degrees is +.6 Julian date is: J0036575
Solar Longitude: 307.0 Sol Number: 574  Change in degrees is +.6 Julian date is: J0036574
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   215,126,109 km [25.5 km/s] Difference is +164468 <= 6852 km/hour at 8.0 on 09/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   214,961,641 km [25.5 km/s] Difference is +163354 <= 6806 km/hour at 8.0 on 09/21 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   214,798,287 km [25.6 km/s] Difference is +162201 <= 6758 km/hour at 8.0 on 09/20 (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: Pair bracketing path: TYC 1293-1169-1 Mg 11.22 RA 05h 03m 06.2s Day 0 at 16 hour marker
TYC 1293-425-1 Mg 11.81 RA 05h 02m 15.3s above path - should be good for two days - Day 1 still ahead of 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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/22 124,687,777  (decrease)
Earth Distance 2022/09/21 125,552,864  (decrease)
Earth Distance 2022/09/20 126,375,942  (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.
Estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 7 and 8 minutes. Communications delay would be 14+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 576 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 576 is Thursday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1565 2022-09-22 11:45:01

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

This is for SpaceNut (primarily) ... anyone who is interested in the opportunity is welcome to pitch in...

GW Johnson has ** not ** made a commitment one way or the other, but he ** has ** acknowledged my inquiry about possibly advocating for items the NewMars forum might send to the convention for the 25th Anniversary meeting.

We (the forum) are approaching two complete Mars years of publishing the daily Proposed Mars Business calendar.  The proposed calendar ** could ** be arranged on a sheet of paper, using Excel or one of the free spreadsheet programs.

If you are at all interested in this idea, please note that the months of the calendar are identical, except for the ends of the quarters, which omit Friday.

The resulting calendar is 20 months of 28 days, and four that are 27 days.   The last day of the year is extended by whatever time is required to bring the Business Calendar into synchronization with the Astronomical Calendar. 

A model of the month is printed at the bottom of the daily update.

If we can have something ready in time, we could mail it to the convention, as well as having it available for download from our Dropbox account.

I'd like to take this opportunity to (again) thank Moderator RobertDyck for the inspiration for the regular form of the calendar.

(th)

Online

#1566 2022-09-23 07:23:16

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/20 Friday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/23 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 308.8 Sol Number: 577  Change in degrees is +.6 Julian date is: J0036577
Solar Longitude: 308.2 Sol Number: 576  Change in degrees is +.6 Julian date is: J0036576
Solar Longitude: 307.6 Sol Number: 575  Change in degrees is +.6 Julian date is: J0036575
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   215,291,614 km [25.5 km/s] Difference is +165505 <= 6896 km/hour at 8.0 on 09/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   215,126,109 km [25.5 km/s] Difference is +164468 <= 6852 km/hour at 8.0 on 09/22 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   214,961,641 km [25.5 km/s] Difference is +163354 <= 6806 km/hour at 8.0 on 09/21 (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 bracketing path: TYC 1294-1436-1 above 16 hour marker at RA 05h 04m 47.8s Mg 11.92 on Day 0
: TYC 1293-1169-1 Mg 11.22 RA 05h 03m 06.2s Day 0 at 16 hour marker - Day 1 past the 8 hour marker
TYC 1293-425-1 Mg 11.81 RA 05h 02m 15.3s above path - should be good for two days - Day 1 still ahead of Mars - Day 2 - past the 16 hour marker
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/23 123.782,333  (decrease)
Earth Distance 2022/09/22 124,687,777  (decrease)
Earth Distance 2022/09/21 125,552,864  (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.
Estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 6 and 7 minutes. Communications delay would be 12+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 577 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 577 is Friday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1567 2022-09-24 06:53:19

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/21 Saturday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/24 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 309.3 Sol Number: 578  Change in degrees is +.6 Julian date is: J0036578
Solar Longitude: 308.8 Sol Number: 577  Change in degrees is +.6 Julian date is: J0036577
Solar Longitude: 308.2 Sol Number: 576  Change in degrees is +.6 Julian date is: J0036576
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   215,458,208 km [25.5 km/s] Difference is +166594 <= 6941 km/hour at 8.0 on 09/24 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   215,291,614 km [25.5 km/s] Difference is +165505 <= 6896 km/hour at 8.0 on 09/23 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   215,126,109 km [25.5 km/s] Difference is +164468 <= 6852 km/hour at 8.0 on 09/22 (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: Another pair bracketing path: TYC 1294-1463-1 above and TYC 1294-1001-1 below: RA 05h 06m 30.4s Day 0 at 16 hour marker
: TYC 1294-1436-1 above 16 hour marker at RA 05h 04m 47.8s Mg 11.92 on Day 0 - Day 1 above 8 hour marker
: TYC 1293-1169-1 Mg 11.22 RA 05h 03m 06.2s Day 0 at 16 hour marker - Day 1 past the 8 hour marker - Day 2 Still visible 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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/24 122,924,598  (decrease)
Earth Distance 2022/09/23 123.782,333  (decrease)
Earth Distance 2022/09/22 124,687,777  (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.
Estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 6 and 7 minutes. Communications delay would be 12+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 578 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 578 is Saturday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1568 2022-09-25 06:50:19

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/22 Sunday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/25 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 309.9 Sol Number: 579  Change in degrees is +.6 Julian date is: J0036579
Solar Longitude: 309.3 Sol Number: 578  Change in degrees is +.6 Julian date is: J0036578
Solar Longitude: 308.8 Sol Number: 577  Change in degrees is +.6 Julian date is: J0036577
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   215,625,828 km [25.5 km/s] Difference is +167620 <= 6984 km/hour at 8.0 on 09/25 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   215,458,208 km [25.5 km/s] Difference is +166594 <= 6941 km/hour at 8.0 on 09/24 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   215,291,614 km [25.5 km/s] Difference is +165505 <= 6896 km/hour at 8.0 on 09/23 (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: a Galaxy above path: PGC 1665396 RA 05h 09m 11.5s Way out in front on Day 0
: TYC 1294-1463-1 above and TYC 1294-1001-1 below: RA 05h 06m 30.4s Day 0 at 16 hour marker - Day 1 Right at 8.5 hour marlker
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/25 122,056,111  (decrease)
Earth Distance 2022/09/24 122,924,598  (decrease)
Earth Distance 2022/09/23 123.782,333  (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.
Estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 6 and 7 minutes. Communications delay would be 12+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 579 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 579 is Sunday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1569 2022-09-26 07:20:15

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/23 Monday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/26 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 310.5 Sol Number: 580  Change in degrees is +.6 Julian date is: J0036580
Solar Longitude: 309.9 Sol Number: 579  Change in degrees is +.6 Julian date is: J0036579
Solar Longitude: 309.3 Sol Number: 578  Change in degrees is +.6 Julian date is: J0036578
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   215,794,490 km [25.5 km/s] Difference is +168662 <= 7028 km/hour at 8.0 on 09/26 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   215,625,828 km [25.5 km/s] Difference is +167620 <= 6984 km/hour at 8.0 on 09/25 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   215,458,208 km [25.5 km/s] Difference is +166594 <= 6941 km/hour at 8.0 on 09/24 (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 we have a micro-Boomer: HIP 24063 below path and ahead of 17 hour marker on Day 0: Mg 7.51 RA 05h 10m 12.9s
: PGC 1665396 RA 05h 09m 11.5s Way out in front on Day 0 - Day 1 Still out in front - definitely good for another day
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/26 121,163,176  (decrease)
Earth Distance 2022/09/25 122,056,111  (decrease)
Earth Distance 2022/09/24 122,924,598  (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.
Estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 6 and 7 minutes. Communications delay would be 12+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 580 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 580 is Monday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1570 2022-09-27 09:30:10

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/24 Tuesday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/27 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 311.1 Sol Number: 581  Change in degrees is +.6 Julian date is: J0036581
Solar Longitude: 310.5 Sol Number: 580  Change in degrees is +.6 Julian date is: J0036580
Solar Longitude: 309.9 Sol Number: 579  Change in degrees is +.6 Julian date is: J0036579
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   215,964,197 km [25.4 km/s] Difference is +169707 <= 7071 km/hour at 8.0 on 09/27 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   215,794,490 km [25.5 km/s] Difference is +168662 <= 7028 km/hour at 8.0 on 09/26 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   215,625,828 km [25.5 km/s] Difference is +167620 <= 6984 km/hour at 8.0 on 09/25 (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: another micro-Boomer HIP 24163 Mg 8.13 RA 05h 14m 20.1s Day 0 above path before 9 hour marker
: HIP 24063 below path and ahead of 17 hour marker on Day 0: Mg 7.51 RA 05h 10m 12.9s - Day 1 just past Mars
: PGC 1665396 RA 05h 09m 11.5s Way out in front on Day 0 - Day 1 Still out in front - definitely good for another day - Day 2 at 18 hour marker
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/27 120,209,666  (decrease)
Earth Distance 2022/09/26 121,163,176  (decrease)
Earth Distance 2022/09/25 122,056,111  (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.
Estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 6 and 7 minutes. Communications delay would be 12+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 581 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 581 is Tuesday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1571 2022-09-27 09:33:17

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Reminder for SpaceNut .... NewMars has an opportunity (at least potentially) to provide copies of the Business Calendar for Mars at the upcoming 25th Anniversary Convention of the Mars Society.

It should be possible to compute the calendar for the coming Mars Year 37, which will start in December of Earth's calendar.

If the layout is portrait, then the 24 months could be laid out in 8 rows of 3 months.

This would be a nice handout for GW Johnson and BeerMan to be able to offer attendees of their presentations.

(th)

Online

#1572 2022-09-28 11:09:16

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/25 Wednesday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/28 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 311.7 Sol Number: 582  Change in degrees is +.6 Julian date is: J0036582
Solar Longitude: 311.1 Sol Number: 581  Change in degrees is +.6 Julian date is: J0036581
Solar Longitude: 310.5 Sol Number: 580  Change in degrees is +.6 Julian date is: J0036580
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   216,134,831 km [25.4 km/s] Difference is +170634 <= 7110 km/hour at 8.0 on 09/28 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   215,964,197 km [25.4 km/s] Difference is +169707 <= 7071 km/hour at 8.0 on 09/27 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   215,794,490 km [25.5 km/s] Difference is +168662 <= 7028 km/hour at 8.0 on 09/26 (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: Pair bracketing path TYC 1295-564-1 Mg 11.46 RA 05h 13m 27.4s above path Day 0 ahead of 18 hour marker
HIP 24163 Mg 8.13 RA 05h 14m 20.1s Day 0 above path before 9 hour marker - Day 1 above 9 hour marker - might last one more day
: HIP 24063 below path and ahead of 17 hour marker on Day 0: Mg 7.51 RA 05h 10m 12.9s - Day 1 just past Mars Day 2 Still visible on 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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/28 119,279,999  (decrease)
Earth Distance 2022/09/27 120,209,666  (decrease)
Earth Distance 2022/09/26 121,163,176  (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.
Estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 6 and 7 minutes. Communications delay would be 12+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 582 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 582 is Wednesday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1573 2022-09-29 06:36:47

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/26 Thursday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/29 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 312.3 Sol Number: 583  Change in degrees is +.6 Julian date is: J0036583
Solar Longitude: 311.7 Sol Number: 582  Change in degrees is +.6 Julian date is: J0036582
Solar Longitude: 311.1 Sol Number: 581  Change in degrees is +.6 Julian date is: J0036581
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   216,306,357 km [25.4 km/s] Difference is +171526 <= 7147 km/hour at 8.0 on 09/29 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   216,134,831 km [25.4 km/s] Difference is +170634 <= 7110 km/hour at 8.0 on 09/28 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   215,964,197 km [25.4 km/s] Difference is +169707 <= 7071 km/hour at 8.0 on 09/27 (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: five stars across path: Top is TYC 1295-920-1 Mg 12.13 RA 05h 14m 21.4s Day 1 at 18 hour marker
TYC 1295-564-1 Mg 11.46 RA 05h 13m 27.4s above path Day 0 ahead of 18 hour marker - Day 1 right at Mars
HIP 24163 Mg 8.13 RA 05h 14m 20.1s Day 0 above path before 9 hour marker - Day 1 above 9 hour marker - might last one more day - Day 1 still visible
---

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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/29 118,574,413  (decrease)
Earth Distance 2022/09/28 119,279,999  (decrease)
Earth Distance 2022/09/27 120,209,666  (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.
Estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 6 and 7 minutes. Communications delay would be 12+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 583 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 583 is Thursday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1574 2022-09-30 07:50:10

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

Today on Mars: 0036/21/27 Friday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/09/30 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 312.8 Sol Number: 584  Change in degrees is +.5 Julian date is: J0036584
Solar Longitude: 312.3 Sol Number: 583  Change in degrees is +.6 Julian date is: J0036583
Solar Longitude: 311.7 Sol Number: 582  Change in degrees is +.6 Julian date is: J0036582
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
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:   216,478,883 km [25.4 km/s] Difference is +172526 <= 7189 km/hour at 8.0 on 09/30 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   216,306,357 km [25.4 km/s] Difference is +171526 <= 7147 km/hour at 8.0 on 09/29 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   216,134,831 km [25.4 km/s] Difference is +170634 <= 7110 km/hour at 8.0 on 09/28 (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: Not much - TYC 1295-1869-1 Mg 12.20 RA 05h 16m 23.1s Day 0 at 19 hour marker
TYC 1295-920-1 Mg 12.13 RA 05h 14m 21.4s Day 1 at 18 hour marker - Day 1 right at the 9.5 hour marker
TYC 1295-564-1 Mg 11.46 RA 05h 13m 27.4s above path Day 0 ahead of 18 hour marker - Day 1 right at Mars - Day 2 right at the 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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

---
Earth Distance 2022/09/30 117,664.212  (decrease)
Earth Distance 2022/09/29 118,574,413  (decrease)
Earth Distance 2022/09/28 119,279,999  (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.
Estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 6 and 7 minutes. Communications delay would be 12+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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 584 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 584 is Friday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

---

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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

Online

#1575 Yesterday 06:43:44

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 11,350

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

One day note: Today is the last Sol of Month 21 in the proposed calendar for Mars.

Today on Mars: 0036/21/28 Saturday <<-- Days of the week offset 0 with Earth.  (count from Mars to Earth (updated 2022/09/03))

--- 

Today on Earth: 2022/10/01 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred June 20, 2022 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

Solar Longitude: 313.4 Sol Number: 585  Change in degrees is +.6 Julian date is: J0036585
Solar Longitude: 312.8 Sol Number: 584  Change in degrees is +.5 Julian date is: J0036584
Solar Longitude: 312.3 Sol Number: 583  Change in degrees is +.6 Julian date is: J0036583
---

Note that Solar Longitude measurement varies as a function of location in orbit.  Ls 0 is the moment when the Sun appears to transit from one hemisphere to the other.  The transition itself is a function of the tilt of an object with respect to the Solar plane. Per squarewidget.com, Hipparchus created the celestial coordinate system we use today.

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars as seen from Earth
Todo: At next Aphelion/Perihelion record the Mars data J00##### (and set Search term)
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (estimated) 2024/05/08
Perihelion occurred at Ls 253 on Sol 485  Earth Date 2020/08/03  Earlier:  2018/09/16, 2016/10/29
Aphelion occurred at--- Ls 071 on Sol 152.  Aphelion Earth Dates: Earlier: 2017/10/07, 2015/11/20
Aphelion occurred near Ls 070 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]
Minus prefix means Mars is approaching the Sun.  Plus prefix means Mars is moving away from the Sun.
The figure computed to the right of "Difference" is the rate of change of the distance to Sun. Increasing to Aphelion/Decreasing to Perihelion.

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Distance: Mars >> Sun per theskylive.com:   216,652,345 km [25.4 km/s] Difference is +173462 <= 7228 km/hour at 8.0 on 10/01 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   216,478,883 km [25.4 km/s] Difference is +172526 <= 7189 km/hour at 8.0 on 09/30 (time 8:00)
Distance: Mars >> Sun per theskylive.com:   216,306,357 km [25.4 km/s] Difference is +171526 <= 7147 km/hour at 8.0 on 09/29 (time 8:00)
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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.

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Next up: TYC pair: 1847-37-1 below path Mg 10.79 TYC 1846-670-1 above path Mg 11.32 RA 05h 18m 07.7s -
- TYC 1295-1869-1 Mg 12.20 RA 05h 16m 23.1s Day 0 at 19 hour marker - Day 1 right at Mars - just above and to the right
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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 holding steady , and on 2022/09/01, it is inclining upward at about 10 degrees

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Earth Distance 2022/10/01 116,837,267  (decrease)
Earth Distance 2022/09/30 117,664.212  (decrease)
Earth Distance 2022/09/29 118,574,413  (decrease)
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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.
Estimated light times: 1:18, 2:36, 3:54, 4:72, 5:90, 6:108, 7:126, 8:144, 9:162, 10:180, 11:198,12:216, 13:234, 14:252, 15:270, 16:288, 17:306
Light travel time today is between 6 and 7 minutes. Communications delay would be 12+ minutes round trip.

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 2022/08/14 Retrograde movement is still in progress on sol 538

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

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Sol 585 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary. <<== Skip Day Sol 557
Month  21 extends from Sol 558 through 585. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 21
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 585 is Saturday  in the Proposed Business calendar for Mars.  Sol 557 was a skip day on Earth. 593 is next expected skip day.

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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  September 3,  2022 on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
The next Skip day is expected October 10, 2022 (range 9th >> 11th) on Earth. The next skip day will separate the week days.

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)
To find the first day of a period of coincidence: Set up: SearchTerm(colon) and (colon)Alignment and J0036*
Refinements of the search include: Author: tahanson43206 Topic: Martian Politics and Economy (Specify Posts instead of Topics)

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insight's 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 21 of 24: <<== Third month of Quarter 4

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