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

tahanson43206 · 2024-07-22 09:47:24

===
Today on Mars: 0037/21/01 Sunday Days of the week offset 1 with Earth. (count from Mars to Earth (updated 2024/07/22))

Today on Earth: 2024/07/22 Monday 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: 297.5 Sol Number: 558 Change in degrees is +? Julian date is: J0037558
Gap
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
<#

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: 212,373,599 km [25.9 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/22 (time 8:00) (24.0 hours)
Gap
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)
==*==*==*

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 way out in front of Mars TYC 1257-692-1 RA 03h 57m 49.4s – 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: 2024/07/22 245,760,000 (decreasing)
Gap
Earth Distance 2024/07/15 249,941,000 (decreasing)
Gap
Earth Distance 2024/07/13 252,002,000 (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 558 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. <<== There are 28 days in Month 21. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 558 is Sunday in the Proposed Business calendar for Mars. Sol 558 was a Skip Day on Mars. Next is near 585 August 26
##

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 21 of 24: <<== Third month of Quarter 4

There are gaps in this report because access to facilities has been limited, and time has been absorbed by other duties.

(th)

tahanson43206 · 2024-07-23 06:01:40

Place holder for today's Calendar update: 12:00:30 UTC
RA 03h 59m 29.1s Dec +19° 50' 14.2" Appar J2000
Mag: 0.94 (Estimated: JPL) Const: Taurus
Sun Dist: 212,516,611 km [25.8 km/s]
Earth Dist: 245,157,755 km [35.1 km/s]

Yesterday was a skip day
Martian Year:
37
Martian Month:
10
Solar longitude Ls:
298.1
Sol number:
559

(th)

tahanson43206 · 2024-07-23 21:08:15

Place holder for Wednesday's Calendar update
Year 37 AM 10 Lg 298.7 Sol 560
***
Object: Mars [ ▸ Sky Map ] Taken at 12:00 UTC
RA 04h 02m 20.2s Dec +19° 59' 07.4" Appar J2000
Mag: 0.94 (Estimated: JPL) Const: Taurus
Sun Dist: 212,660,915 km [25.8 km/s]
Earth Dist: 244,454,448 km [34.9 km/s]

tahanson43206 · 2024-07-24 08:57:29

===
Today on Mars: 0037/21/03 Tuesday Days of the week offset 1 with Earth. (count from Mars to Earth (updated 2024/07/22))

Today on Earth: 2024/07/24 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: 298.7 Sol Number: 560 Change in degrees is +? Julian date is: J0037560
Gap
Solar Longitude: 297.5 Sol Number: 558 Change in degrees is +? Julian date is: J0037558
Gap
Solar Longitude: 293.9 Sol Number: 553 Change in degrees is +.6 Julian date is: J0037553
<<#

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: 212,660,915 km [25.8 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/24 (time 8:00) (24.0 hours)
Gap
Distance: Mars >> Sun per theskylive.com: 212,373,599 km [25.9 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/22 (time 8:00) (24.0 hours)
Gap
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)
==*==*==*

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: data unavailable
====*====*>>>

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: 2024/07/25 244.372,000 (decreasing)
Gap
Earth Distance: 2024/07/22 245,760,000 (decreasing)
Gap
Earth Distance 2024/07/15 249,941,000 (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 560 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. <<== There are 28 days in Month 21. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 560 is Tuesday in the Proposed Business calendar for Mars. Sol 558 was a Skip Day on Mars. Next is near 585 August 26
##

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 21 of 24: <<== Third month of Quarter 4

tahanson43206 · 2024-07-25 05:00:33

Place holder for today's Calendar update

Martian Year: 37 Martian Astromical Month: 10
Solar longitude Ls: 299.3 Sol number: 561

Initial observation taken at 11:01 UTC:
RA 04h 05m 04s Dec +20° 07’ 29” Appar J2000
Mag: 0.87 (Estimated: JPL) Const: Taurus
Sun Dist: 212800615.10517 km [ km/s]
Earth Dist: 243776243.40965 km [ km/s]

Snapshot taken at 12:00 UTC

Greenwich, UK 07/25/2024, 12:59:59 Europe/London
Object: Mars [ ▸ Sky Map ]
RA 04h 05m 11.8s Dec +20° 07' 50.2" Appar J2000
Mag: 0.87 (Estimated: JPL) Const: Taurus
Sun Dist: 212,806,639 km [25.8 km/s]
Earth Dist: 243,747,065 km [34.8 km/s]

tahanson43206 · 2024-07-25 09:09:42

===
Today on Mars: 0037/21/04 Wednesday Days of the week offset 1 with Earth. (count from Mars to Earth (updated 2024/07/22))

Today on Earth: 2024/07/25 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: 299.3 Sol Number: 561 Change in degrees is +.6 Julian date is: J0037561
Solar Longitude: 298.7 Sol Number: 560 Change in degrees is +? Julian date is: J0037560
Gap
Solar Longitude: 297.5 Sol Number: 558 Change in degrees is +? Julian date is: J0037558
Gap
Solar Longitude: 293.9 Sol Number: 553 Change in degrees is +.6 Julian date is: J0037553
<<#

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: 212,806,639 km [25.8 km/s] Difference is +145724 <= +6072 km/hour at 08.0 on 07/25 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 212,660,915 km [25.8 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/24 (time 8:00) (24.0 hours)
Gap
Distance: Mars >> Sun per theskylive.com: 212,373,599 km [25.9 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/22 (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: a trio of Stars right at the 9 hours marker TYC 1258-611-1 RA 04h 05m 17.2s – 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: 2024/07/25 243,665,000 (decreasing)
Earth Distance: 2024/07/24 244.372,000 (decreasing)
Gap
Earth Distance: 2024/07/22 245,760,000 (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 561 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. <<== There are 28 days in Month 21. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 561 is Wednesday in the Proposed Business calendar for Mars. Sol 558 was a Skip Day on Mars. Next is near 585 August 26
##

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 21 of 24: <<== Third month of Quarter 4

tahanson43206 · 2024-07-26 05:26:42

Place holder for today's Calendar update

Martian Year: 37 Martian Astronomical Month: 10
Solar longitude Ls: 299.9 Sol number: 562

The Mars Astronomical month is about to change from 10 to 11, as the Longitude increases from 299.9 to 300 over the coming hours.

RA 04h 08m 03.5s Dec +20° 16' 22.5" Appar J2000
Mag: 0.86 (Estimated: JPL) Const: Taurus
Sun Dist: 212,953,718 km [25.8 km/s]
Earth Dist: 243,035,728 km [34.6 km/s]

(th)

tahanson43206 · 2024-07-26 21:04:39

Place holder for Saturday's Calendar update

We are in Astronomical month 11
Martian Year: 37 Martian Month: 11
Solar longitude Ls: 300.5 Sol number: 563

Snapshot at 7 AM EST 11:00 UTC
Greenwich, UK 07/27/2024, 12:00:00 Europe/London
Object: Mars [ ▸ Sky Map ]
RA 04h 10m 47.6s Dec +20° 24' 22.7" Appar J2000
Mag: 0.87 (Estimated: JPL) Const: Taurus
Sun Dist: 213,095,917 km [25.8 km/s]
Earth Dist: 242,350,265 km [34.5 km/s]

(th)

tahanson43206 · 2024-07-27 20:27:36

Place holder for Sunday's Calendar update

Greenwich, UK 07/28/2024, 12:59:59 Europe/London
Object: Mars [ ▸ Sky Map ]
RA 04h 13m 45.8s Dec +20° 32' 51.4" Appar J2000
Mag: 0.85 (Estimated: JPL) Const: Taurus
Sun Dist: 213,251,854 km [25.7 km/s]
Earth Dist: 241,600,915 km [34.3 km/s]

And:
Martian Year:
37
Martian Month:
11
Solar longitude Ls:
301.1
Sol number:
564

(th)

tahanson43206 · 2024-07-28 07:29:25

===
Today on Mars: 0037/21/07 Saturday Days of the week offset 1 with Earth. (count from Mars to Earth (updated 2024/07/22))

Today on Earth: 2024/07/28 Sunday 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: 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: J0037564
Gap
Solar Longitude: 299.3 Sol Number: 561 Change in degrees is +.6 Julian date is: J0037561
Solar Longitude: 298.7 Sol Number: 560 Change in degrees is +? Julian date is: J0037560
<<#

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: 213,251,854 km [25.7 km/s] Difference is +155937 <= +6237 km/hour at 08.0 on 07/28 (time 8:00) (24.0 hours)
Gap
Distance: Mars >> Sun per theskylive.com: 212,806,639 km [25.8 km/s] Difference is +145724 <= +6072 km/hour at 08.0 on 07/25 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 212,660,915 km [25.8 km/s] Difference is +?????? <= +???? km/hour at 08.0 on 07/24 (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: A star above 9 hours marker TYC 1259-465-1 RA 04h 13m 32.0s 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: 2024/07/28 241,556,000 (decreasing)
Gap
Earth Distance: 2024/07/25 243,665,000 (decreasing)
Earth Distance: 2024/07/24 244.372,000 (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 564 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. <<== There are 28 days in Month 21. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 564 is Saturday in the Proposed Business calendar for Mars. Sol 558 was a Skip Day on Mars. Next is near 585 August 26
##

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 21 of 24: <<== Third month of Quarter 4

tahanson43206 · 2024-07-28 20:14:32

Place holder for Monday's Calendar update.

Greenwich, UK 07/29/2024, 12:59:59 Europe/London @ 12:00 UTC
Object: Mars [ ▸ Sky Map ]
RA 04h 16m 37.0s Dec +20° 40' 49.2" Appar J2000
Mag: 0.84 (Estimated: JPL) Const: Taurus
Sun Dist: 213,402,880 km [25.7 km/s]
Earth Dist: 240,877,270 km [34.1 km/s]

Martian Year:
37
Martian Month:
11
Solar longitude Ls:
301.7
Sol number:
565

(th)

tahanson43206 · 2024-07-29 17:26:04

Place holder for Tuesday's Calendar update.

Snapshot at 12:00 UTC
Greenwich, UK 07/30/2024, 13:00:02 Europe/London
Object: Mars [ ▸ Sky Map ]
RA 04h 19m 28.1s Dec +20° 48' 35.5" Appar J2000
Mag: 0.83 (Estimated: JPL) Const: Taurus
Sun Dist: 213,555,190 km [25.7 km/s]
Earth Dist: 240,149,372 km [34.0 km/s]

Snapshot at 11 AM UTC
Greenwich, UK 07/30/2024, 12:00:13 Europe/London
Object: Mars [ ▸ Sky Map ]
RA 04h 19m 21.1s Dec +20° 48' 16.7" Appar J2000
Mag: 0.84 (Estimated: JPL) Const: Taurus
Sun Dist: 213,548,838 km [25.7 km/s]
Earth Dist: 240,179,691 km [34.0 km/s]

Martian Year:
37
Martian Month:
11
Solar longitude Ls:
302.3
Sol number:
566

(th)

tahanson43206 · 2024-07-30 18:12:51

Place holder for Wednesday's Calendar update

Snapshot taken 12:00 UTC
Greenwich, UK 07/31/2024, 13:00:10 Europe/London
Object: Mars [ ▸ Sky Map ]
RA 04h 22m 19.3s Dec +20° 56' 10.7" Appar J2000
Mag: 0.83 (Estimated: JPL) Const: Taurus
Sun Dist: 213,708,772 km [25.7 km/s]
Earth Dist: 239,417,153 km [33.8 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
302.9
Sol number:
567

tahanson43206 · 2024-07-31 07:39:43

===
Today on Mars: 0037/21/09 Monday Days of the week offset 1 with Earth. (count from Mars to Earth (updated 2024/07/22))

Today on Earth: 2024/07/31 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: 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: J0037567
Gap
Solar Longitude: 301.1 Sol Number: 564 Change in degrees is +.6 Julian date is: J0037564
Gap
Solar Longitude: 299.3 Sol Number: 561 Change in degrees is +.6 Julian date is: J0037561
<<#

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: 213,708,772 km [25.7 km/s] Difference is +153582 <= +6143 km/hour at 08.0 on 07/31 (time 8:00) (24.0 hours)
Gap
Distance: Mars >> Sun per theskylive.com: 213,251,854 km [25.7 km/s] Difference is +155937 <= +6237 km/hour at 08.0 on 07/28 (time 8:00) (24.0 hours)
Gap
Distance: Mars >> Sun per theskylive.com: 212,806,639 km [25.8 km/s] Difference is +145724 <= +6072 km/hour at 08.0 on 07/25 (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 ahead of 9 hour marker and just below path: TYC 1276-1561-1 RA 04h 22m 28.4s – 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: 2024/07/31 239,367,000 (decreasing)
Gap
Earth Distance: 2024/07/28 241,556,000 (decreasing)
Gap
Earth Distance: 2024/07/25 243,665,000 (decreasing)
Earth Distance: 2024/07/24 244.372,000 (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 567 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. <<== There are 28 days in Month 21. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 567 is Tuesday in the Proposed Business calendar for Mars. Sol 558 was a Skip Day on Mars. Next is near 585 August 26
##

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 21 of 24: <<== Third month of Quarter 4

tahanson43206 · 2024-07-31 19:50:38

Place holder for Thursday's Calendar update
On Earth, we are moving into the Month of August.
Users of the Business Calendar for Mars are solidly in Month 21.
The Business Calendar for Mars has 20 months of 28 days, and four months of 27 days.
Those months with 27 days come at the end of the Quarter, when Friday is omitted in the last week of the quarter.
The Astronomical calendar and the Business calendar for Mars are re-aligned to the nanosecond at midnight of the new year.

Greenwich, UK 08/01/2024, 13:00:04 Europe/London <<== 12:00 UTC
Object: Mars [ ▸ Sky Map ]
RA 04h 25m 09.9s Dec +21° 03' 34.0" Appar J2000
Mag: 0.83 (Estimated: JPL) Const: Taurus
Sun Dist: 213,863,573 km [25.7 km/s]
Earth Dist: 238,680,745 km [33.6 km/s]

Martian Year:
37
Martian Month:
11
Solar longitude Ls:
303.5
Sol number:
568

tahanson43206 · 2024-08-01 16:10:52

===
Today on Mars: 0037/21/10 Tuesday Days of the week offset 1 with Earth. (count from Mars to Earth (updated 2024/07/22))

Today on Earth: 2024/08/01 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

===
Solar Longitude: 303.5 Sol Number: 568 Change in degrees is +.6 Julian date is: J0037568
Solar Longitude: 302.9 Sol Number: 567 Change in degrees is +.6 Julian date is: J0037567
Gap
Solar Longitude: 301.1 Sol Number: 564 Change in degrees is +.6 Julian date is: J0037564
<<#

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: 213,863,573 km [25.7 km/s] Difference is +154801 <= +6192 km/hour at 08.0 on 08/01 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 213,708,772 km [25.7 km/s] Difference is +153582 <= +6143 km/hour at 08.0 on 07/31 (time 8:00) (24.0 hours)
Gap
Distance: Mars >> Sun per theskylive.com: 213,251,854 km [25.7 km/s] Difference is +155937 <= +6237 km/hour at 08.0 on 07/28 (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: HIP 20680 above path between 10 and 5 hour markers RA 04h 25m 47.5s – Day 0
Next up: Star well ahead of Mars: TYC 1277-136-1 RA 04h 26m 47.0s – 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: 2024/08/01 238,370,000 (decreasing)
Earth Distance: 2024/07/31 239,367,000 (decreasing)
Gap
Earth Distance: 2024/07/28 241,556,000 (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 568 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. <<== There are 28 days in Month 21. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 568 is Wednesday in the Proposed Business calendar for Mars. Sol 558 was a Skip Day on Mars. Next is near 585 August 26
##

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 21 of 24: <<== Third month of Quarter 4

Conditions around the preparation of this daily report are improving.

Stability has been hard to come by, but a major milestone has passed, and conditions look favorable from here, despite lingering hardware shortfalls.

(th)

tahanson43206 · 2024-08-02 06:02:16

Place holder for today's calendar update

Get the App
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Greenwich, UK
Object: Mars [ ▸ Sky Map ]
RA 04h 28m 00s Dec +21° 10’ 45” Appar J2000
Mag: 0.84 (Estimated: JPL) Const: Taurus
Sun Dist: 214019637.6396 km [ km/s]
Earth Dist: 237939828.37055 km [ km/s]

Martian Year: 37 Martian Astronomical Month: 11
Solar longitude Ls: 304.1 Sol number: 569

(th)

tahanson43206 · 2024-08-02 19:17:39

Place holder for Saturday's Calendar update

Greenwich, UK 08/03/2024, 13:15:35 Europe/London >> 12:15:36 UTC
Object: Mars [ ▸ Sky Map ]
RA 04h 30m 53.0s Dec +21° 17' 50.6" Appar J2000
Mag: 0.83 (Estimated: JPL) Const: Taurus
Sun Dist: 214,178,554 km [25.6 km/s]
Earth Dist: 237,186,801 km [33.3 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
304.7
Sol number:
570
(th)

tahanson43206 · 2024-08-03 11:32:48

===
Today on Mars: 0037/21/13 Friday Days of the week offset 1 with Earth. (count from Mars to Earth (updated 2024/07/22))

Today on Earth: 2024/08/03 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

===
Solar Longitude: 304.7 Sol Number: 570 Change in degrees is +.6 Julian date is: J00375760
Gap
Solar Longitude: 303.5 Sol Number: 568 Change in degrees is +.6 Julian date is: J0037568
Solar Longitude: 302.9 Sol Number: 567 Change in degrees is +.6 Julian date is: J0037567
<<#

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: 214,178,554 km [25.6 km/s] Difference is +158917 <= +6357 km/hour at 08.2 on 08/15 (time 8:00) (24.25 hours)
Gap note above reading was taken at UTC 12:15
Distance: Mars >> Sun per theskylive.com: 213,863,573 km [25.7 km/s] Difference is +154801 <= +6192 km/hour at 08.0 on 08/01 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 213,708,772 km [25.7 km/s] Difference is +153582 <= +6143 km/hour at 08.0 on 07/31 (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 below path TYC 1277-562-1 RA 04h 31m 41.7s – 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: 2024/08/03 237,024,000 (decreasing)
Gap
Earth Distance: 2024/08/01 238,370,000 (decreasing)
Earth Distance: 2024/07/31 239,367,000 (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 570 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. <<== There are 28 days in Month 21. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 570 is Friday in the Proposed Business calendar for Mars. Sol 558 was a Skip Day on Mars. Next is near 585 August 26
##

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 21 of 24: <<== Third month of Quarter 4

tahanson43206 · 2024-08-04 05:48:16

Place holder for today's Calendar update

Greenwich, UK 08/04/2024, 13:00:04 Europe/London TAKEN at 12:00 UTC
Object: Mars [ ▸ Sky Map ]
RA 04h 33m 41.4s Dec +21° 24' 35.2" Appar J2000
Mag: 0.87 (Estimated: JPL) Const: Taurus
Sun Dist: 214,335,284 km [25.6 km/s]
Earth Dist: 236,445,410 km [33.2 km/s]

Martian Year:
37
Martian Month:
11
Solar longitude Ls:
305.2
Sol number:
571

tahanson43206 · 2024-08-04 12:18:57

===
Today on Mars: 0037/21/14 Saturday Days of the week offset 1 with Earth. (count from Mars to Earth (updated 2024/07/22))

Today on Earth: 2024/08/04 Sunday 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: 11 <<== The Astronomical month will increment when longitude reaches 330 degrees

===
Solar Longitude: 305.2 Sol Number: 571 Change in degrees is +.5 Julian date is: J0037571
Solar Longitude: 304.7 Sol Number: 570 Change in degrees is +.6 Julian date is: J0037570
Gap
Solar Longitude: 303.5 Sol Number: 568 Change in degrees is +.6 Julian date is: J0037568
Solar Longitude: 302.9 Sol Number: 567 Change in degrees is +.6 Julian date is: J0037567
<<#

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: 214,335,284 km [25.6 km/s] Difference is +156730 <= +6269 km/hour at 08.0 on 08/04 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 214,178,554 km [25.6 km/s] Difference is +158917 <= +6357 km/hour at 08.2 on 08/03 (time 8:00) (24.25 hours)
Gap note above reading was taken at UTC 12:15
Distance: Mars >> Sun per theskylive.com: 213,863,573 km [25.7 km/s] Difference is +154801 <= +6192 km/hour at 08.0 on 08/01 (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 in path: TYC 1278-379-1 RA 04h 34m 45.0s – Day 0 -
TYC 1277-562-1 RA 04h 31m 41.7s – Day 0 – Day 1 below 10 hours marker
====*====*>>>

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: 2024/08/04 236,250,000 (decreasing)
Earth Distance: 2024/08/03 237,024,000 (decreasing)
Gap
Earth Distance: 2024/08/01 238,370,000 (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 571 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. <<== There are 28 days in Month 21. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 571 is Saturday in the Proposed Business calendar for Mars. Sol 558 was a Skip Day on Mars. Next is near 585 August 26
##

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 21 of 24: <<== Third month of Quarter 4

tahanson43206 · 2024-08-04 19:50:07

Place holder for Monday's Calendar update.

Object: Mars [ ▸ Sky Map ] Snapshot taken at 2:02 UTC
RA 04h 36m 31.8s Dec +21° 31' 13.2" Appar J2000
Mag: 0.87 (Estimated: JPL) Const: Taurus
Sun Dist: 214,495,217 km [25.6 km/s]
Earth Dist: 235,690,060 km [33.0 km/s]

Martian Year:
37
Martian Month:
11
Solar longitude Ls:
305.8
Sol number:
572

(th)

tahanson43206 · 2024-08-05 13:32:23

===
Today on Mars: 0037/21/15 Sunday Days of the week offset 1 with Earth. (count from Mars to Earth (updated 2024/07/22))

Today on Earth: 2024/08/05 Monday 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: 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: J0037572
Solar Longitude: 305.2 Sol Number: 571 Change in degrees is +.5 Julian date is: J0037571
Solar Longitude: 304.7 Sol Number: 570 Change in degrees is +.6 Julian date is: J0037570
<<#

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: 214,495,217 km [25.6 km/s] Difference is +159933 <= +6397 km/hour at 08.0 on 08/05 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 214,335,284 km [25.6 km/s] Difference is +156730 <= +6269 km/hour at 08.0 on 08/04 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 214,178,554 km [25.6 km/s] Difference is +158917 <= +6357 km/hour at 08.2 on 08/03 (time 8:00) (24.25 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 1278-730-1 RA 04h 37m 22.7s – Day 0 -
TYC 1278-379-1 RA 04h 34m 45.0s – Day 0 – Day 1 above 10 hour marker – last day for 379
====*====*>>>

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: 2024/08/05 235,456,000 (decreasing)
Earth Distance: 2024/08/04 236,250,000 (decreasing)
Earth Distance: 2024/08/03 237,024,000 (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 572 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. <<== There are 28 days in Month 21. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 572 is Sunday in the Proposed Business calendar for Mars. Sol 558 was a Skip Day on Mars. Next is near 585 August 26
##

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 21 of 24: <<== Third month of Quarter 4

tahanson43206 · 2024-08-06 05:02:35

Place holder for today's Calendar update...

Greenwich, UK 08/06/2024, 13:00:00 Europe/London << 12:00 UTC
Object: Mars [ ▸ Sky Map ]
RA 04h 39m 21.6s Dec +21° 37' 38.2" Appar J2000
Mag: 0.89 (Estimated: JPL) Const: Taurus
Sun Dist: 214,655,633 km [25.6 km/s]
Earth Dist: 234,933,527 km [32.8 km/s]

Early snapshot at 11:00 UTC
reenwich, UK 08/06/2024, 12:00:00 Europe/London
Object: Mars [ ▸ Sky Map ]
RA 04h 39m 14.6s Dec +21° 37' 22.6" Appar J2000
Mag: 0.89 (Estimated: JPL) Const: Taurus
Sun Dist: 214,648,913 km [25.6 km/s]
Earth Dist: 234,965,201 km [32.8 km/s]

Martian Year:
37
Martian Month:
11
Solar longitude Ls:
306.4
Sol number:
573

tahanson43206 · 2024-08-06 07:54:39

===
Today on Mars: 0037/21/16 Monday Days of the week offset 1 with Earth. (count from Mars to Earth (updated 2024/07/22))

Today on Earth: 2024/08/06 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: 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: J0037573
Solar Longitude: 305.8 Sol Number: 572 Change in degrees is +.6 Julian date is: J0037572
Solar Longitude: 305.2 Sol Number: 571 Change in degrees is +.5 Julian date is: J0037571
<<#

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: 214,655,633 km [25.6 km/s] Difference is +169416 <= +6416 km/hour at 08.0 on 08/06 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 214,495,217 km [25.6 km/s] Difference is +159933 <= +6397 km/hour at 08.0 on 08/05 (time 8:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 214,335,284 km [25.6 km/s] Difference is +156730 <= +6269 km/hour at 08.0 on 08/04 (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: Galaxy below path: PGC 1653789 RA 04h 39m 58.6s – Day 0 -
TYC 1278-730-1 RA 04h 37m 22.7s – Day 0 – Day 1 – Above five hours past marker
====*====*>>>

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: 2024/08/06 234,874,000 (decreasing)
Earth Distance: 2024/08/05 235,456,000 (decreasing)
Earth Distance: 2024/08/04 236,250,000 (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 573 is in Month 21 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 21 extends from Sol 558 through 585. <<== There are 28 days in Month 21. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 573 is Monday in the Proposed Business calendar for Mars. Sol 558 was a Skip Day on Mars. Next is near 585 August 26
##

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 21 of 24: <<== Third month of Quarter 4

New Mars Forums

Announcement

#2276 2024-07-22 09:47:24

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

#2277 2024-07-23 06:01:40

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#2278 2024-07-23 21:08:15

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#2279 2024-07-24 08:57:29

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#2285 2024-07-28 07:29:25

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

#2286 2024-07-28 20:14:32

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#2290 2024-07-31 19:50:38

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#2291 2024-08-01 16:10:52

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#2293 2024-08-02 19:17:39

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#2294 2024-08-03 11:32:48

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