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

SpaceNut · 2024-07-04 09:02:17

Most calendars like to show images above the numbers for the month. The images can be of any format or topic as some like light holes, astronomy views of the stars ect...

Not all of the information of the day needs all of the above post to give people the importance of mars movement for each increment.

tahanson43206 · 2024-07-04 09:18:31

For SpaceNut re @2251

Thanks for keeping the idea of a printed Calendar alive!

In our meeting with Executive Director James Burk, I had technical difficulties so could not participate.

Subsequently, I sent an email to Mr. Burk about GW Johnson's course offering, and Mr. Burk invited GW Johnson to participate in the Mars
society member forum, in order to make contact with folks who might be interested in the course.

The calendar never got to the batter's box, let alone first base.

Your keeping the idea alive is much appreciated.

You may have noticed that the daily updates are slim these days, due to relocation and Internet incompatibility.

I'll try to at least keep the daily distance snapshot in view.

(th)

tahanson43206 · 2024-07-05 05:47:39

Place holder for today's Calender update

Distance: 210,172,609 km [26.1 km/s]

Martian Year:
37
Martian Month:
10
Solar longitude Ls:
287.2
Sol number:
542

tahanson43206 · 2024-07-06 06:21:03

210288761 km [ km/s]

Place holder for today's Calendar update

2024/07/07 Saturday 12:00 UTC
Sol 543 Year 37 287.8 Month 10
210,288,761 km 26.1 [ km/s]

(th)

tahanson43206 · 2024-07-06 09:16:33

===
Today on Mars: 0037/20/14 Saturday Days of the week offset 0 with Earth. (count from Mars to Earth (updated 2024/05/14))

Today on Earth: 2024/07/06 Saturday Earth Date) Post Title: Today on Mars [Aphelion occurred May 30, 2023 Earth Calendar]
====*=

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

Martian Year: 37 Martian Astronomical Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

===
Solar Longitude: 287.8 Sol Number: 543 Change in degrees is +.? Julian date is: J0037543
Gap
Solar Longitude: 286.5 Sol Number: 541 Change in degrees is +.? Julian date is: J0037541
Gap
Solar Longitude: 284.1 Sol Number: 537 Change in degrees is +.6 Julian date is: J0037537
<<#

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. Update from Mars.NASA.gov (The Sun crosses the equator of Mars (Vernal Equinox)). 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 2024/05/08 Next: (estimated) 2026/03/06
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (actual) 2024/05/08
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: 210,288,761 km [26.1 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/06 (time 8:00) (24.0 hours)
Gap
Distance: Mars >> Sun per theskylive.com: 210,057,347 km [26.2 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/04 (time 8:00) (24.0 hours)
Gap
Distance: Mars >> Sun per theskylive.com: 209,613,647 km [26.2 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 06/30 (time 8:00) (24.0 hours)
==*==*==*

Observation: The sky view is ** filled ** with objects and some 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.

=== Mars is in Regular Movement as seen from Earth. Mars is progressing from lower right to upper left in the view from Earth. Slant 20 degrees.
Next up: Galaxy in path PGC 1521240 RA 03h 11m 40.5s Day 0 -
====*====*>>>

Zoom Out Capability 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 (Zoom out)
Update 2022/12/08 TheSkyLive.com provides a large view of selected objects: Select [Major Bodies] Then select [Information] in the body of interest
Update 2022/12/08 Scroll down to (body) Position and Finder Charts. Field of view is 50x30 degrees.

Note: The curve of the path of Mars as seen against the background of stars is now a line heading left at a downward angle.
As of 2023/01/11, the curve of the path has returned to regular movement to the left border

Light travel time today is between 14 and 15 minutes. Communications delay would be 28+ minutes round trip.

===
Earth Distance 2024/07/06 256,518,000 (decreasing)
Gap
Earth Distance 2024/07/04 257,820,000 (decreasing)
Gap
Earth Distance 2024/06/30 260,397,000 (decreasing)
#>

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, 8:144,9:162,10:180,11:198,12:216,13:234,14:252,15:270,16:288,17:306,18:324,19:342,20:360,21:378,22:396

Maximum Earth-Mars distance is estimated to be 401 million kilometers (both at apogee and opposite vs Sun)
Mars and Earth were in Opposition (Earth center) in December of 2022. The date coincided with a (very rare) occultation of Mars by the Moon.
Mars and Earth were in Conjunction (Sun center) in November of 2023.
Mars and Earth appear to have been as close as they will get in this cycle. 81,454,323 kilometers on J0036644 Time: 4.53 minutes - 9 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.

Regular movement of Mars as seen from Earth resumed as of 2023/01/13. RA is once again increasing.
According to www.hercampus.com, Retrograde movement began October 30, 2022.
The online solar system display at the link below shows clearly how the Mars movement will occur in months ahead.

This web site offers an online model of the solar system: www.solarsystemscope.com It requires Chrome 57, Firefox 52 or Safari 10.1. Viewed 2022/10/13: Opposition will occur some time in December of 2022. Per earthsky.org, the date is December 8, 2022.

This web site offers an online orrery view of the Solar System: https://www.theplanetstoday.com/

===
Sol 543 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. <<== There are 28 days in Month 20. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 543 is Saturday in the Proposed Business calendar for Mars. Sol 521 was a Skip Day on Mars. Next is near 558 July 18th
##

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 37
Per www.planetary.org Year 36 started 2021/02/07 on Earth. Mars Year 37 began 2022/12/27 on Earth.

Days of the Week Alignment:
Days of the week fall behind Earth due to the longer Sol, but they also change 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* or J0037*
The most recent End-Of-Quarter change occurred: … The search specified above gave 11 pages of results.

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*** <<-- Insight's mission is over (2022)

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 Copyright ® 2023 NewMars.com Mars Society
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 20 of 24: <<== Second month of Quarter 4

tahanson43206 · 2024-07-07 05:56:35

Place holder for today's Calendar update

210,407,488 km [26.1 km/s] 12:02 UTC

Martian Year:
37
Martian Month:
10
Solar longitude Ls:
288.4
Sol number:
544

(th)

tahanson43206 · 2024-07-07 20:35:23

Place holder for daily Calendar update... this is for Monday 2024/07/08

210,527,370 km [26.0 km/s]

Martian Year:
37
Martian Month:
10
Solar longitude Ls:
289
Sol number:
545

(th)

tahanson43206 · 2024-07-09 05:04:33

Place holder for today's Calendar update

7 AM EST early snapshot: 210,644,105 km [26.0 km/s]
8 AM EST regular snapshot: 210,649,205 km [26.0 km/s]

Martian Year:
37
Martian Month:
10
Solar longitude Ls:
289.6
Sol number:
546

(th)

tahanson43206 · 2024-07-10 04:20:27

Place holder for today's Calendar update

Early snapshot at 10:20 UTC: 210,763,838 km [26.0 km/s]

Snapshot at 12:02:50 UTC: 210,772,717 km [26.0 km/s]

(th)

tahanson43206 · 2024-07-10 06:54:24

===
Today on Mars: 0037/20/18 Wednesday Days of the week offset 0 with Earth. (count from Mars to Earth (updated 2024/05/14))

Today on Earth: 2024/07/10 Wednesday Earth Date) Post Title: Today on Mars [Aphelion occurred May 30, 2023 Earth Calendar]
====*=

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

Martian Year: 37 Martian Astronomical Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

===
Solar Longitude: 290.2 Sol Number: 547 Change in degrees is +.? Julian date is: J0037547
Gap
Solar Longitude: 287.8 Sol Number: 543 Change in degrees is +.? Julian date is: J0037543
Gap
Solar Longitude: 286.5 Sol Number: 541 Change in degrees is +.? Julian date is: J0037541
<<#

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. Update from Mars.NASA.gov (The Sun crosses the equator of Mars (Vernal Equinox)). 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 2024/05/08 Next: (estimated) 2026/03/06
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (actual) 2024/05/08
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: 210,762,006 km [26.1 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/06 (time 8:00) (24.0 hours)
Gap
Distance: Mars >> Sun per theskylive.com: 210,288,761 km [26.1 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/06 (time 8:00) (24.0 hours)
Gap
Distance: Mars >> Sun per theskylive.com: 210,057,347 km [26.2 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/04 (time 8:00) (24.0 hours)
==*==*==*

Observation: The sky view is ** filled ** with objects and some 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.

=== Mars is in Regular Movement as seen from Earth. Mars is progressing from lower right to upper left in the view from Earth. Slant 20 degrees.
Next up: Mini-Boomer above path HIP 15724 RA -3h 22m 32.6s – Day 0 -
====*====*>>>

Zoom Out Capability 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 (Zoom out)
Update 2022/12/08 TheSkyLive.com provides a large view of selected objects: Select [Major Bodies] Then select [Information] in the body of interest
Update 2022/12/08 Scroll down to (body) Position and Finder Charts. Field of view is 50x30 degrees.

Note: The curve of the path of Mars as seen against the background of stars is now a line heading left at a downward angle.
As of 2023/01/11, the curve of the path has returned to regular movement to the left border

Light travel time today is between 14 and 15 minutes. Communications delay would be 28+ minutes round trip.

===
Earth Distance 2024/07/10 254,049,000 (decreasing)
Gap
Earth Distance 2024/07/04 257,820,000 (decreasing)
Gap
Earth Distance 2024/06/30 260,397,000 (decreasing)
#>

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, 8:144,9:162,10:180,11:198,12:216,13:234,14:252,15:270,16:288,17:306,18:324,19:342,20:360,21:378,22:396

Maximum Earth-Mars distance is estimated to be 401 million kilometers (both at apogee and opposite vs Sun)
Mars and Earth were in Opposition (Earth center) in December of 2022. The date coincided with a (very rare) occultation of Mars by the Moon.
Mars and Earth were in Conjunction (Sun center) in November of 2023.
Mars and Earth appear to have been as close as they will get in this cycle. 81,454,323 kilometers on J0036644 Time: 4.53 minutes - 9 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.

Regular movement of Mars as seen from Earth resumed as of 2023/01/13. RA is once again increasing.
According to www.hercampus.com, Retrograde movement began October 30, 2022.
The online solar system display at the link below shows clearly how the Mars movement will occur in months ahead.

This web site offers an online model of the solar system: www.solarsystemscope.com It requires Chrome 57, Firefox 52 or Safari 10.1. Viewed 2022/10/13: Opposition will occur some time in December of 2022. Per earthsky.org, the date is December 8, 2022.

This web site offers an online orrery view of the Solar System: https://www.theplanetstoday.com/

===
Sol 547 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. <<== There are 28 days in Month 20. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 547 is Wednesday in the Proposed Business calendar for Mars. Sol 521 was a Skip Day on Mars. Next is near 558 July 18th
##

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 37
Per www.planetary.org Year 36 started 2021/02/07 on Earth. Mars Year 37 began 2022/12/27 on Earth.

Days of the Week Alignment:
Days of the week fall behind Earth due to the longer Sol, but they also change 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* or J0037*
The most recent End-Of-Quarter change occurred: … The search specified above gave 11 pages of results.

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*** <<-- Insight's mission is over (2022)

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 Copyright ® 2023 NewMars.com Mars Society
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 20 of 24: <<== Second month of Quarter 4

tahanson43206 · 2024-07-11 02:51:41

This is a place holder for today's Calendar update. 2024/07/11 at 12:00 UTC

Sun Dist: 210,897,490 km [26.0 km/s] Earth Dist: 253,332,974 km [36.9 km/s]

(th)

tahanson43206 · 2024-07-11 09:56:09

===
Today on Mars: 0037/20/19 Thursday Days of the week offset 0 with Earth. (count from Mars to Earth (updated 2024/05/14))

Today on Earth: 2024/07/11 Thursday Earth Date) Post Title: Today on Mars [Aphelion occurred May 30, 2023 Earth Calendar]
====*=

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

Martian Year: 37 Martian Astronomical Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

===
Solar Longitude: 290.8 Sol Number: 548 Change in degrees is +.6 Julian date is: J0037548
Solar Longitude: 290.2 Sol Number: 547 Change in degrees is +.? Julian date is: J0037547
Gap
Solar Longitude: 287.8 Sol Number: 543 Change in degrees is +.? Julian date is: J0037543
<<#

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. Update from Mars.NASA.gov (The Sun crosses the equator of Mars (Vernal Equinox)). 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 2024/05/08 Next: (estimated) 2026/03/06
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (actual) 2024/05/08
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: 210,892,430 km [26.1 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/11 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 210,762,006 km [26.1 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/10 (time 8:00) (24.0 hours)
Gap
Distance: Mars >> Sun per theskylive.com: 210,288,761 km [26.1 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/06 (time 8:00) (24.0 hours)
==*==*==*

Observation: The sky view is ** filled ** with objects and some 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.

=== Mars is in Regular Movement as seen from Earth. Mars is progressing from lower right to upper left in the view from Earth. Slant 20 degrees.
Next up: Star right at 9 hours marker TYC 1237-220-1 RA 03h 25m 26.7s – Day 0 -
Next up: Mini-Boomer above path HIP 15724 RA -3h 22m 32.6s – Day 0 – Day 1 past 9 hours marker – last day for 724
====*====*>>>

Zoom Out Capability 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 (Zoom out)
Update 2022/12/08 TheSkyLive.com provides a large view of selected objects: Select [Major Bodies] Then select [Information] in the body of interest
Update 2022/12/08 Scroll down to (body) Position and Finder Charts. Field of view is 50x30 degrees.

Note: The curve of the path of Mars as seen against the background of stars is now a line heading left at a downward angle.
As of 2023/01/11, the curve of the path has returned to regular movement to the left border

Light travel time today is between 14 and 15 minutes. Communications delay would be 28+ minutes round trip.

===
Earth Distance 2024/07/11 253,228,000 (decreasing)
Earth Distance 2024/07/10 254,049,000 (decreasing)
Gap
Earth Distance 2024/07/04 257,820,000 (decreasing)
#>

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, 8:144,9:162,10:180,11:198,12:216,13:234,14:252,15:270,16:288,17:306,18:324,19:342,20:360,21:378,22:396

Maximum Earth-Mars distance is estimated to be 401 million kilometers (both at apogee and opposite vs Sun)
Mars and Earth were in Opposition (Earth center) in December of 2022. The date coincided with a (very rare) occultation of Mars by the Moon.
Mars and Earth were in Conjunction (Sun center) in November of 2023.
Mars and Earth appear to have been as close as they will get in this cycle. 81,454,323 kilometers on J0036644 Time: 4.53 minutes - 9 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.

Regular movement of Mars as seen from Earth resumed as of 2023/01/13. RA is once again increasing.
According to www.hercampus.com, Retrograde movement began October 30, 2022.
The online solar system display at the link below shows clearly how the Mars movement will occur in months ahead.

This web site offers an online model of the solar system: www.solarsystemscope.com It requires Chrome 57, Firefox 52 or Safari 10.1. Viewed 2022/10/13: Opposition will occur some time in December of 2022. Per earthsky.org, the date is December 8, 2022.

This web site offers an online orrery view of the Solar System: https://www.theplanetstoday.com/

===
Sol 548 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. <<== There are 28 days in Month 20. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 548 is Thursday in the Proposed Business calendar for Mars. Sol 521 was a Skip Day on Mars. Next is near 558 July 18th
##

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 37
Per www.planetary.org Year 36 started 2021/02/07 on Earth. Mars Year 37 began 2022/12/27 on Earth.

Days of the Week Alignment:
Days of the week fall behind Earth due to the longer Sol, but they also change 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* or J0037*
The most recent End-Of-Quarter change occurred: … The search specified above gave 11 pages of results.

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*** <<-- Insight's mission is over (2022)

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 Copyright ® 2023 NewMars.com Mars Society
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 20 of 24: <<== Second month of Quarter 4

tahanson43206 · 2024-07-12 05:53:06

Place holder for today's Calendar update...
2024/07/12 Friday 12:00 UTC
Year 37 AM 10 Lg 291.4 Sol 549
Sun Dist: 211,024,048 km [26.0 km/s] Earth Dist: 252,669,365 km [36.8 km/s]

tahanson43206 · 2024-07-13 06:10:01

Place holder for today's Calendar update
Sun Dist: 211,152,187 km [26.0 km/s] Earth Dist: 252,002,646 km [36.6 km/s]

tahanson43206 · 2024-07-13 12:20:14

===
Today on Mars: 0037/20/21 Saturday Days of the week offset 0 with Earth. (count from Mars to Earth (updated 2024/05/14))

Today on Earth: 2024/07/13 Saturday Earth Date) Post Title: Today on Mars [Aphelion occurred May 30, 2023 Earth Calendar]
====*=

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

Martian Year: 37 Martian Astronomical Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

===
Solar Longitude: 292.1 Sol Number: 550 Change in degrees is +.7 Julian date is: J0037550
Solar Longitude: 291.4 Sol Number: 549 Change in degrees is +.6 Julian date is: J0037549
Solar Longitude: 290.8 Sol Number: 548 Change in degrees is +.6 Julian date is: J0037548
<<#

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. Update from Mars.NASA.gov (The Sun crosses the equator of Mars (Vernal Equinox)). 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 2024/05/08 Next: (estimated) 2026/03/06
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (actual) 2024/05/08
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: 211,152,187 km [26.0 km/s] Difference is +128139 <= +5339 km/hour at 08.0 on 07/13 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 211,024,048 km [26.0 km/s] Difference is +131618 <= +5484 km/hour at 08.0 on 07/12 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 210,892,430 km [26.1 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/11 (time 8:00) (24.0 hours)
==*==*==*

Observation: The sky view is ** filled ** with objects and some 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.

=== Mars is in Regular Movement as seen from Earth. Mars is progressing from lower right to upper left in the view from Earth. Slant 20 degrees.
Next up: Galaxy right on 9 hours marker PGC 1553520 RA 03h 31m 21.0s – Day 0 -
TYC 1238-311-0 RA 03h 29m 6.6s – Day 0 - Day 1 above 9 hours past marker – last day for 311
====*====*>>>

Zoom Out Capability 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 (Zoom out)
Update 2022/12/08 TheSkyLive.com provides a large view of selected objects: Select [Major Bodies] Then select [Information] in the body of interest
Update 2022/12/08 Scroll down to (body) Position and Finder Charts. Field of view is 50x30 degrees.

Note: The curve of the path of Mars as seen against the background of stars is now a line heading left at a downward angle.
As of 2023/01/11, the curve of the path has returned to regular movement to the left border

Light travel time today is between 13 and 14 minutes. Communications delay would be 26+ minutes round trip.

===
Earth Distance 2024/07/13 252,002,000 (decreasing)
Earth Distance 2024/07/12 252,569,000 (decreasing)
Earth Distance 2024/07/11 253,228,000 (decreasing)
#>

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, 8:144,9:162,10:180,11:198,12:216,13:234,14:252,15:270,16:288,17:306,18:324,19:342,20:360,21:378,22:396

Maximum Earth-Mars distance is estimated to be 401 million kilometers (both at apogee and opposite vs Sun)
Mars and Earth were in Opposition (Earth center) in December of 2022. The date coincided with a (very rare) occultation of Mars by the Moon.
Mars and Earth were in Conjunction (Sun center) in November of 2023.
Mars and Earth appear to have been as close as they will get in this cycle. 81,454,323 kilometers on J0036644 Time: 4.53 minutes - 9 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.

Regular movement of Mars as seen from Earth resumed as of 2023/01/13. RA is once again increasing.
According to www.hercampus.com, Retrograde movement began October 30, 2022.
The online solar system display at the link below shows clearly how the Mars movement will occur in months ahead.

This web site offers an online model of the solar system: www.solarsystemscope.com It requires Chrome 57, Firefox 52 or Safari 10.1. Viewed 2022/10/13: Opposition will occur some time in December of 2022. Per earthsky.org, the date is December 8, 2022.

This web site offers an online orrery view of the Solar System: https://www.theplanetstoday.com/

===
Sol 550 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. <<== There are 28 days in Month 20. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 550 is Saturday in the Proposed Business calendar for Mars. Sol 521 was a Skip Day on Mars. Next is near 558 July 18th
##

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 37
Per www.planetary.org Year 36 started 2021/02/07 on Earth. Mars Year 37 began 2022/12/27 on Earth.

Days of the Week Alignment:
Days of the week fall behind Earth due to the longer Sol, but they also change 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* or J0037*
The most recent End-Of-Quarter change occurred: … The search specified above gave 11 pages of results.

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*** <<-- Insight's mission is over (2022)

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 Copyright ® 2023 NewMars.com Mars Society
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 20 of 24: <<== Second month of Quarter 4

tahanson43206 · 2024-07-14 06:04:15

Sun Dist: 211,281,959 km [26.0 km/s] Earth Dist: 251,332,443 km [36.5 km/s]
Place holder for today's Calendar update. Snapshot taken at 12:00 UTC
(th)

tahanson43206 · 2024-07-15 05:50:47

place holder for today's Calendar update.
2024/07/15 Monday
Sol 552 Year 37 AMonth 10
Longitude: 293.3
Sun Dist: 211,413,141 km [25.9 km/s] Earth Dist: 250,659,788 km [36.3 km/s]

tahanson43206 · 2024-07-16 04:44:03

Place holder for today's Calendar update.
Year 37 Martian Month: 10
Solar longitude Ls: 293.9 Sol number: 553
The next Skip Day is expected July 18
This post is entered on July 16
Sun Dist: 211,541,735 km [25.9 km/s] Earth Dist: 250,004,846 km [36.2 km/s] << snapshot taken 11:15 UTC
Sun Dist: 211,545,908 km [25.9 km/s] Earth Dist: 249,983,663 km [36.2 km/s] << snapshot taken 12:00 UTC
(th)

tahanson43206 · 2024-07-16 07:35:21

===
Today on Mars: 0037/20/24 Tuesday Days of the week offset 0 with Earth. (count from Mars to Earth (updated 2024/05/14))

Today on Earth: 2024/07/16 Tuesday Earth Date) Post Title: Today on Mars [Aphelion occurred May 30, 2023 Earth Calendar]
====*=

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

Martian Year: 37 Martian Astronomical Month in 12 month format: 10 <<== The Astronomical month will increment when longitude reaches 300 degrees

===
Solar Longitude: 293.9 Sol Number: 553 Change in degrees is +.6 Julian date is: J0037553
Gap
Solar Longitude: 292.1 Sol Number: 550 Change in degrees is +.7 Julian date is: J0037550
Solar Longitude: 291.4 Sol Number: 549 Change in degrees is +.6 Julian date is: J0037549
<<#

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. Update from Mars.NASA.gov (The Sun crosses the equator of Mars (Vernal Equinox)). 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 2024/05/08 Next: (estimated) 2026/03/06
Perihelion occurred at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (actual) 2024/05/08
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: 211,413,141 km [25.9 km/s] Difference is +132767 <= +5532 km/hour at 08.0 on 07/16 (time 8:00) (24.0 hours)
Gap
Distance: Mars >> Sun per theskylive.com: 211,152,187 km [26.0 km/s] Difference is +128139 <= +5339 km/hour at 08.0 on 07/13 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 211,024,048 km [26.0 km/s] Difference is +131618 <= +5484 km/hour at 08.0 on 07/12 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 210,892,430 km [26.1 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/11 (time 8:00) (24.0 hours)
==*==*==*

Observation: The sky view is ** filled ** with objects and some 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.

=== Mars is in Regular Movement as seen from Earth. Mars is progressing from lower right to upper left in the view from Earth. Slant 20 degrees.
Next up: Star above path TYC 1243-644-1 RA 03h 39m 41.1s – Day 0 -
====*====*>>>

Zoom Out Capability 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 (Zoom out)
Update 2022/12/08 TheSkyLive.com provides a large view of selected objects: Select [Major Bodies] Then select [Information] in the body of interest
Update 2022/12/08 Scroll down to (body) Position and Finder Charts. Field of view is 50x30 degrees.

Note: The curve of the path of Mars as seen against the background of stars is now a line heading left at a downward angle.
As of 2023/01/11, the curve of the path has returned to regular movement to the left border

Light travel time today is between 13 and 14 minutes. Communications delay would be 26+ minutes round trip.

===
Earth Distance 2024/07/15 249,941,000 (decreasing)
Gap
Earth Distance 2024/07/13 252,002,000 (decreasing)
Earth Distance 2024/07/12 252,569,000 (decreasing)
Earth Distance 2024/07/11 253,228,000 (decreasing)
#>

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, 8:144,9:162,10:180,11:198,12:216,13:234,14:252,15:270,16:288,17:306,18:324,19:342,20:360,21:378,22:396

Maximum Earth-Mars distance is estimated to be 401 million kilometers (both at apogee and opposite vs Sun)
Mars and Earth were in Opposition (Earth center) in December of 2022. The date coincided with a (very rare) occultation of Mars by the Moon.
Mars and Earth were in Conjunction (Sun center) in November of 2023.
Mars and Earth appear to have been as close as they will get in this cycle. 81,454,323 kilometers on J0036644 Time: 4.53 minutes - 9 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.

Regular movement of Mars as seen from Earth resumed as of 2023/01/13. RA is once again increasing.
According to www.hercampus.com, Retrograde movement began October 30, 2022.
The online solar system display at the link below shows clearly how the Mars movement will occur in months ahead.

This web site offers an online model of the solar system: www.solarsystemscope.com It requires Chrome 57, Firefox 52 or Safari 10.1. Viewed 2022/10/13: Opposition will occur some time in December of 2022. Per earthsky.org, the date is December 8, 2022.

This web site offers an online orrery view of the Solar System: https://www.theplanetstoday.com/

===
Sol 553 is in Month 20 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 20 extends from Sol 530 through 557. <<== There are 28 days in Month 20. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 553 is Tuesday in the Proposed Business calendar for Mars. Sol 521 was a Skip Day on Mars. Next is near 558 July 18th
##

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 37
Per www.planetary.org Year 36 started 2021/02/07 on Earth. Mars Year 37 began 2022/12/27 on Earth.

Days of the Week Alignment:
Days of the week fall behind Earth due to the longer Sol, but they also change 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* or J0037*
The most recent End-Of-Quarter change occurred: … The search specified above gave 11 pages of results.

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*** <<-- Insight's mission is over (2022)

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 Copyright ® 2023 NewMars.com Mars Society
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 20 of 24: <<== Second month of Quarter 4

tahanson43206 · 2024-07-17 05:55:00

Place holder for today's Calendar update

Martian Year: 37 Martian Month: 10
Solar longitude Ls: 294.5 Sol number: 554

Sun Dist: 211679966 km [ km/s] Earth Dist: 249305424 km [ km/s] << taken at Noon UTC

Sun Dist: 211,680,282 km [25.9 km/s] Earth Dist: 249,303,846 km [36.0 km/s] << taken at 12:01 UTC

The difference in the two readings is one Earth minute.

(th)

tahanson43206 · 2024-07-18 04:45:06

Place holder for today's Calendar update...

From: Greenwich, UK
Time: 07/18/2024, 11:44:30 Europe/London
RA: 03h 43m 36.8s Dec: +18° 57' 50.8" (J2000)
Mag: 1.00 (Estimated: JPL) Const: Taurus
Sun Dist: 211,808,797 km [25.9 km/s] Earth Dist: 248,657,638 km [35.9 km/s]

And later:
Sun Dist: 211816196 km [ km/s] Earth Dist: 248620536 km [ km/s] taken at 12:02 UTC

Martian Year: 37 Martian Month: 10
Solar longitude Ls: 295.1 Sol number: 555

tahanson43206 · 2024-07-19 03:18:44

Place holder for today's Calendar update...

From: Greenwich, UK Time 12:00:32 UTC
Time: 07/19/2024, 13:00:32 Europe/London
RA: 03h 46m 37.4s Dec: +19° 08' 16.7" (J2000)
Mag: 0.98 (Estimated: JPL) Const: Taurus
Sun Dist: 211,953,246 km [25.9 km/s] Earth Dist: 247,935,647 km [35.7 km/s]

Time: 09/17 UTC Greenwich, UK
RA: 3.771704 Dec: 19.120215 (J2000)
Mag: 0.98 (Estimated: JPL) Const: Taurus
Sun Dist: 211937508 km [ km/s] Earth Dist: 248014081 km [ km/s]

Martian Year:
37
Martian Month:
10
Solar longitude Ls:
295.7
Sol number:
556

It may be a couple of weeks before I can resume regular posting of the Business Calendar updates.

(th)

tahanson43206 · 2024-07-19 20:11:05

Place holder for the Calendar update for Saturday July 20, 2024.

July 20, 1969 was the date of the Apollo Moon landing. 31+24>>55 years

Saturday marks the 55th anniversary of the Apollo 11 moon landing by Neil Armstrong and Buzz Aldrin. The cosmos is providing a full moon, and there are plenty of other events to honor the first lunar landing on July 20, 1969.9 hours ago
Moon fests, moon movie and even a full moon mark 55th ...
AP News
https://apnews.com › article › nasa-apollo-11-55th-anni...
Apollo 11 moon landing 50th anniversary
Remembering the Apollo 11 Moon Landing – 50th Anniversary Event Celebrations

Snapshot at 11:03:00 UTC
Greenwich, UK
Object: Mars [ ▸ Sky Map ]
RA 03h 50m 46s Dec +19° 22’ 01” Appar J2000
Mag: 0.97 (Estimated: JPL) Const: Taurus
Sun Dist: 212086248.4427 km [ km/s]
Earth Dist: 247274645.14021 km [ km/s]

Snapshot at 12:03 UTC

Time: 07/20/2024, 13:03:48 Europe/London
RA: 03h 49m 29.2s Dec: +19° 18' 01.5" (J2000)
Mag: 1.00 (Estimated: JPL) Const: Taurus
Sun Dist: 212,092,262 km [25.9 km/s] Earth Dist: 247,244,854 km [35.5 km/s]

(th)

tahanson43206 · 2024-07-21 05:53:20

Place holder for today's Calendar update...

RA 03h 53m 45.7s Dec +19° 31' 51.3" Appar J2000
Mag: 0.94 (Estimated: JPL) Const: Taurus
Sun Dist: 212,232,047 km [25.9 km/s]
Earth Dist: 246,553,944 km [35.4 km/s]

Martian Year:
37
Martian Month:
10
Solar longitude Ls:
296.9
Sol number:
558

tahanson43206 · 2024-07-21 19:55:45

Place holder for Monday's planned Calendar update....

Work is proceeding ** very ** slowly to restore full use of the wired computer network I brought over from a house to an apartment.

The apartment management is particular about how wires are run and where they are run, and I have acquired the prescribed wire run devices and have sized them to fit. However, it will be some time before the network is back in something like normal operation.

In the mean time, the normal format for the Daily Calendar update is on hold.

Update: Today is a Skip Day at Mars! Sol 558 is held over for today.

Year 37 Astronomical Month 10 Longitude 297.5 Sol 558

Greenwich, UK 07/22/2024, 13:00:02 Europe/London 12:00:02 UTC
Object: Mars [ ▸ Sky Map ]
RA 03h 56m 37.4s Dec +19° 41' 08.3" Appar J2000
Mag: 0.91 (Estimated: JPL) Const: Taurus
Sun Dist: 212,373,599 km [25.8 km/s]
Earth Dist: 245,857,794 km [35.2 km/s]

(th)

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#2251 2024-07-04 09:02:17

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

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

#2261 2024-07-11 02:51:41

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

#2262 2024-07-11 09:56:09

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

#2263 2024-07-12 05:53:06

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

#2264 2024-07-13 06:10:01

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

#2265 2024-07-13 12:20:14

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

#2266 2024-07-14 06:04:15

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

#2267 2024-07-15 05:50:47

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

#2268 2024-07-16 04:44:03

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

#2269 2024-07-16 07:35:21

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

#2270 2024-07-17 05:55:00

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

#2271 2024-07-18 04:45:06

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

#2272 2024-07-19 03:18:44

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

#2273 2024-07-19 20:11:05

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

#2274 2024-07-21 05:53:20

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

#2275 2024-07-21 19:55:45

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

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