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===
Today on Mars: 0038/17/04 Wednesday Days of the week OFFSET 0 with Earth. (count from Mars to Earth )
Sol 450 Business Month 17 Fifth month of Quarter 3 of Year 38
Today on Earth: 2026/02/18 Wednesday Earth Date) Post Title: Today on Mars
====*====*==
To see how this calendar works, we show the standard 28 day month at the bottom of this daily report.
There are 20 months of 28 Sols and 4 months of 27 Sols at the end of the four six-month quarters.
New Years Eve is extended to align the Business Calendar for Mars with the Astronomical calendar.
Business and Astronomical both start at zero (to the nanosecond) on New Year's Day.
This calendar has been in operation for two full Mars years (36 and 37). We are in Year 38
Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for opposition/perigee/aphelion
Martian Year: 38 Martian Astronomical Interval in 12 interval format: 8 <<== The Astronomical interval
Check Longitude: the interval will increment when longitude reaches 240 degrees
===
Solar Longitude: 228.0 Sol Number: 450 Change in degrees is +.6 Julian date is: J0038450
Solar Longitude: 227.4 Sol Number: 449 Change in degrees is +.6 Julian date is: J0038449 << Skipdayonmars
Solar Longitude: 226.8 Sol Number: 449 Change in degrees is +.7 Julian date is: J0038449
#>
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 date as J00##### (and set Search term)
Perihelion occurred in 2024 at Ls 251 on Sol 485 - Earth Date 2024/05/08 Next: (estimated) 2026/03/06
Perihelion occurred in 2022 at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (actual) 2024/05/08
Aphelion Earth Dates: Next: 2027/03/04 Earlier: 2025/04/16, 2023/05/30, 2021/07/12, 2019/08/25, 2017/10/07, 2015/11/20
Aphelion occurred at--- Ls 071 on Sol 152.
Aphelion occurred near Ls 070 on Sol 153 (per http://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.
Aphelion of Mars is due March 04, 2027 Sol 151-152 Note velocity of Mars was 22.0 km/s nearing Aphelion (21.97 km/s)
===
Distance: Mars >> Sun per theskylive.com: 207,999,796 km [26.3 km/s] Difference is -76242 <= -3177 km/hour at 12.0 on 02/18 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 208,076,038 km [26.3 km/s] Difference is -78206 <= -3259 km/hour at 12.0 on 02/17 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 208,154,244 km [26.3 km/s] Difference is -80162 <= -3340 km/hour at 12.0 on 02/16 (time 12:00) (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.
Next ahead: TYC 6361-588-1 21h 34m 51.1s above path Day 0
TYC 6361-282-1 RA 21h 30m 58.7s Day 0 – Day 1 lower right corner
====*====*===
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.
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
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip.
=== Time estimate will change below 342
Earth Distance in km: 2026/02/18 352,445,769 (decreasing)
Earth Distance in km: 2026/02/17 352,650,231 (decreasing)
Earth Distance in km: 2026/02/16 352,853,522 (decreasing)
<<#
Maximum Earth-Mars distance is estimated to be 401 million kilometers (both at apogee and opposite vs Sun) Minimum is about 56 million kilometers
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 Year 36. 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.
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 450 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 17 extends from Sol 447 through 474. <<== There are 28 days in Month 17. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 450 is Wednesday in the Proposed Business calendar for Mars. Sol 449 was a Skip Day on Mars. Next is near 486 of Year 38
##
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. Year 38 started November 12, 2024 on Earth
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
Copyright the Mars Society All Rights Reserved
Month 17 of 24: << There are 28 days in Month 17. Fifth month of Q3
Offline
Like button can go here
Place holder for today's Calendar update:
[51.4792N, 0.0000E] 02/19/2026, 13:00:07 Europe/London
Object: Mars (open sky map)
RA 21h 36m 08.8s Dec -15° 25' 49.8" Appar J2000
Mag: 1.06 (Estimated: JPL) Const: Capricornus
Sun Dist: 207,925,519 km [26.3 km/s]
Earth Dist: 352,240,139 km [56.1 km/s]
Who is online
In total there are 58 users online :: 0 registered, 0 hidden and 58 guests (based on users active over the past 5 minutes)
Most users ever online was 6169 on Fri Feb 06, 2026 4:17 am
Martian Year:
38
Martian Astronomical Month:
8
Solar longitude Ls:
228.6
Sol number:
451
Next ahead: TYC 6361-588-1 21h 34m 51.1s above path Day 0
TYC 6361-282-1 RA 21h 30m 58.7s Day 0 – Day 1 lower right corner
Total number of registered users: 19,630
Total number of topics: 8,983
Total number of posts: 233,845
Today: 238159
Offline
Like button can go here
===
Today on Mars: 0038/17/05 Thursday Days of the week OFFSET 0 with Earth. (count from Mars to Earth )
Sol 451 Business Month 17 Fifth month of Quarter 3 of Year 38
Today on Earth: 2026/02/19 Thursday Earth Date) Post Title: Today on Mars
====*====*==
To see how this calendar works, we show the standard 28 day month at the bottom of this daily report.
There are 20 months of 28 Sols and 4 months of 27 Sols at the end of the four six-month quarters.
New Years Eve is extended to align the Business Calendar for Mars with the Astronomical calendar.
Business and Astronomical both start at zero (to the nanosecond) on New Year's Day.
This calendar has been in operation for two full Mars years (36 and 37). We are in Year 38
Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for opposition/perigee/aphelion
Martian Year: 38 Martian Astronomical Interval in 12 interval format: 8 <<== The Astronomical interval
Check Longitude: the interval will increment when longitude reaches 240 degrees
===
Solar Longitude: 228.6 Sol Number: 451 Change in degrees is +.6 Julian date is: J0038451
Solar Longitude: 228.0 Sol Number: 450 Change in degrees is +.6 Julian date is: J0038450
Solar Longitude: 227.4 Sol Number: 449 Change in degrees is +.6 Julian date is: J0038449 << Skipdayonmars
#>
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 date as J00##### (and set Search term)
Perihelion occurred in 2024 at Ls 251 on Sol 485 - Earth Date 2024/05/08 Next: (estimated) 2026/03/06
Perihelion occurred in 2022 at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (actual) 2024/05/08
Aphelion Earth Dates: Next: 2027/03/04 Earlier: 2025/04/16, 2023/05/30, 2021/07/12, 2019/08/25, 2017/10/07, 2015/11/20
Aphelion occurred at--- Ls 071 on Sol 152.
Aphelion occurred near Ls 070 on Sol 153 (per http://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.
Aphelion of Mars is due March 04, 2027 Sol 151-152 Note velocity of Mars was 22.0 km/s nearing Aphelion (21.97 km/s)
===
Distance: Mars >> Sun per theskylive.com: 207,925,519 km [26.3 km/s] Difference is -74277 <= -3095 km/hour at 12.0 on 02/19 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 207,999,796 km [26.3 km/s] Difference is -76242 <= -3177 km/hour at 12.0 on 02/18 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 208,076,038 km [26.3 km/s] Difference is -78206 <= -3259 km/hour at 12.0 on 02/17 (time 12:00) (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.
Next ahead: micro-Boomer in path HIP 106710 RA 21 36m 56.5s Day 0 -
TYC 6361-588-1 21h 34m 51.1s above path Day 0 – Day 1 above Mars
====*====*===
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.
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
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip.
=== Time estimate will change below 342
Earth Distance in km: 2026/02/19 352,240,139 (decreasing)
Earth Distance in km: 2026/02/18 352,445,769 (decreasing)
Earth Distance in km: 2026/02/17 352,650,231 (decreasing)
<<#
Maximum Earth-Mars distance is estimated to be 401 million kilometers (both at apogee and opposite vs Sun) Minimum is about 56 million kilometers
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 Year 36. 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.
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 451 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 17 extends from Sol 447 through 474. <<== There are 28 days in Month 17. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 451 is Thursday in the Proposed Business calendar for Mars. Sol 449 was a Skip Day on Mars. Next is near 486 of Year 38
##
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. Year 38 started November 12, 2024 on Earth
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
Copyright the Mars Society All Rights Reserved
Month 17 of 24: << There are 28 days in Month 17. Fifth month of Q3
Offline
Like button can go here
Place holder for today's Calendar update: Friday
[51.4792N, 0.0000E] 02/20/2026, 13:00:10 Europe/London
Object: Mars (open sky map)
RA 21h 39m 14.1s Dec -15° 10' 36.7" Appar J2000
Mag: 1.06 (Estimated: JPL) Const: Capricornus
Sun Dist: 207,853,236 km [26.4 km/s]
Earth Dist: 352,033,441 km [56.1 km/s]
Who is online
In total there are 230 users online :: 1 registered, 0 hidden and 229 guests (based on users active over the past 5 minutes)
Most users ever online was 6169 on Fri Feb 06, 2026 4:17 am
Martian Year:
38
Martian Astronomical Month:
8
Solar longitude Ls:
229.3
Sol number:
452
Today: 238175
Total number of registered users: 19,630
Total number of topics: 8,984
Total number of posts: 233,861
Offline
Like button can go here
===
Today on Mars: 0038/17/06 Friday Days of the week OFFSET 0 with Earth. (count from Mars to Earth )
Sol 452 Business Month 17 Fifth month of Quarter 3 of Year 38
Today on Earth: 2026/02/20 Friday Earth Date) Post Title: Today on Mars
====*====*==
To see how this calendar works, we show the standard 28 day month at the bottom of this daily report.
There are 20 months of 28 Sols and 4 months of 27 Sols at the end of the four six-month quarters.
New Years Eve is extended to align the Business Calendar for Mars with the Astronomical calendar.
Business and Astronomical both start at zero (to the nanosecond) on New Year's Day.
This calendar has been in operation for two full Mars years (36 and 37). We are in Year 38
Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for opposition/perigee/aphelion
Martian Year: 38 Martian Astronomical Interval in 12 interval format: 8 <<== The Astronomical interval
Check Longitude: the interval will increment when longitude reaches 240 degrees
===
Solar Longitude: 229.3 Sol Number: 452 Change in degrees is +.7 Julian date is: J0038452
Solar Longitude: 228.6 Sol Number: 451 Change in degrees is +.6 Julian date is: J0038451
Solar Longitude: 228.0 Sol Number: 450 Change in degrees is +.6 Julian date is: J0038450
#>
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 date as J00##### (and set Search term)
Perihelion occurred in 2024 at Ls 251 on Sol 485 - Earth Date 2024/05/08 Next: (estimated) 2026/03/06
Perihelion occurred in 2022 at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (actual) 2024/05/08
Aphelion Earth Dates: Next: 2027/03/04 Earlier: 2025/04/16, 2023/05/30, 2021/07/12, 2019/08/25, 2017/10/07, 2015/11/20
Aphelion occurred at--- Ls 071 on Sol 152.
Aphelion occurred near Ls 070 on Sol 153 (per http://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.
Aphelion of Mars is due March 04, 2027 Sol 151-152 Note velocity of Mars was 22.0 km/s nearing Aphelion (21.97 km/s)
===
Distance: Mars >> Sun per theskylive.com: 207,853,236 km [26.4 km/s] Difference is -72289 <= -3012 km/hour at 12.0 on 02/20 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 207,925,519 km [26.3 km/s] Difference is -74277 <= -3095 km/hour at 12.0 on 02/19 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 207,999,796 km [26.3 km/s] Difference is -76242 <= -3177 km/hour at 12.0 on 02/18 (time 12:00) (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.
Next ahead: Star in path TYC 6362-392-1 RA 21h 39m 37.5s Day 0 -
micro-Boomer in path HIP 106710 RA 21 36m 56.5s Day 0 – Day 1 past 8 hours
====*====*===
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.
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
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip.
=== Time estimate will change below 342
Earth Distance in km: 2026/02/20 352,033,441 (decreasing)
Earth Distance in km: 2026/02/19 352,240,139 (decreasing)
Earth Distance in km: 2026/02/18 352,445,769 (decreasing)
<<#
Maximum Earth-Mars distance is estimated to be 401 million kilometers (both at apogee and opposite vs Sun) Minimum is about 56 million kilometers
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 Year 36. 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.
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 452 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 17 extends from Sol 447 through 474. <<== There are 28 days in Month 17. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 452 is Friday in the Proposed Business calendar for Mars. Sol 449 was a Skip Day on Mars. Next is near 486 of Year 38
##
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. Year 38 started November 12, 2024 on Earth
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
Copyright the Mars Society All Rights Reserved
Month 17 of 24: << There are 28 days in Month 17. Fifth month of Q3
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Place holder for today's Calendar update.
[51.4792N, 0.0000E] 02/21/2026, 13:00:14 Europe/London
Object: Mars (open sky map)
RA 21h 42m 19.4s Dec -14° 55' 14.6" Appar J2000
Mag: 1.08 (Estimated: JPL) Const: Capricornus
Sun Dist: 207,782,949 km [26.4 km/s]
Earth Dist: 351,825,699 km [56.0 km/s]
Who is online
In total there are 602 users online :: 1 registered, 0 hidden and 601 guests (based on users active over the past 5 minutes)
Most users ever online was 6169 on Fri Feb 06, 2026 4:17 am
Martian Year:
38
Martian Astronomical Month:
8
Solar longitude Ls:
229.9
Sol number:
453
Next ahead: Star in path TYC 6362-392-1 RA 21h 39m 37.5s Day 0 -
micro-Boomer in path HIP 106710 RA 21 36m 56.5s Day 0 – Day 1 past 8 hours
Total number of registered users: 19,630
Total number of topics: 8,985
Total number of posts: 233,888
Newest registered user: Scarecrow2025
Registered users online: 1
Guests online: 77
This post: 238202
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===
Today on Mars: 0038/17/07 Saturday Days of the week OFFSET 0 with Earth. (count from Mars to Earth )
Sol 453 Business Month 17 Fifth month of Quarter 3 of Year 38
Today on Earth: 2026/02/21 Saturday Earth Date) Post Title: Today on Mars
====*====*==
To see how this calendar works, we show the standard 28 day month at the bottom of this daily report.
There are 20 months of 28 Sols and 4 months of 27 Sols at the end of the four six-month quarters.
New Years Eve is extended to align the Business Calendar for Mars with the Astronomical calendar.
Business and Astronomical both start at zero (to the nanosecond) on New Year's Day.
This calendar has been in operation for two full Mars years (36 and 37). We are in Year 38
Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for opposition/perigee/aphelion
Martian Year: 38 Martian Astronomical Interval in 12 interval format: 8 <<== The Astronomical interval
Check Longitude: the interval will increment when longitude reaches 240 degrees
===
Solar Longitude: 229.9 Sol Number: 453 Change in degrees is +.6 Julian date is: J0038453
Solar Longitude: 229.3 Sol Number: 452 Change in degrees is +.7 Julian date is: J0038452
Solar Longitude: 228.6 Sol Number: 451 Change in degrees is +.6 Julian date is: J0038451
#>
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 date as J00##### (and set Search term)
Perihelion occurred in 2024 at Ls 251 on Sol 485 - Earth Date 2024/05/08 Next: (estimated) 2026/03/06
Perihelion occurred in 2022 at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (actual) 2024/05/08
Aphelion Earth Dates: Next: 2027/03/04 Earlier: 2025/04/16, 2023/05/30, 2021/07/12, 2019/08/25, 2017/10/07, 2015/11/20
Aphelion occurred at--- Ls 071 on Sol 152.
Aphelion occurred near Ls 070 on Sol 153 (per http://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.
Aphelion of Mars is due March 04, 2027 Sol 151-152 Note velocity of Mars was 22.0 km/s nearing Aphelion (21.97 km/s)
===
Distance: Mars >> Sun per theskylive.com: 207,782,949 km [26.4 km/s] Difference is -70287 <= -2929 km/hour at 12.0 on 02/21 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 207,853,236 km [26.4 km/s] Difference is -72289 <= -3012 km/hour at 12.0 on 02/20 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 207,925,519 km [26.3 km/s] Difference is -74277 <= -3095 km/hour at 12.0 on 02/19 (time 12:00) (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.
Next ahead: Star in path TYC 5800-887-1 RA21h 43m 03.6s – Day 0
Star in path TYC 6362-392-1 RA 21h 39m 37.5s Day 0 – Day 1 past 8 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.
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
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip.
=== Time estimate will change below 342
Earth Distance in km: 2026/02/21 351,825,699 (decreasing)
Earth Distance in km: 2026/02/20 352,033,441 (decreasing)
Earth Distance in km: 2026/02/19 352,240,139 (decreasing)
<<#
Maximum Earth-Mars distance is estimated to be 401 million kilometers (both at apogee and opposite vs Sun) Minimum is about 56 million kilometers
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 Year 36. 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.
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 453 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 17 extends from Sol 447 through 474. <<== There are 28 days in Month 17. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 453 is Saturday in the Proposed Business calendar for Mars. Sol 449 was a Skip Day on Mars. Next is near 486 of Year 38
##
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. Year 38 started November 12, 2024 on Earth
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
Copyright the Mars Society All Rights Reserved
Month 17 of 24: << There are 28 days in Month 17. Fifth month of Q3
Offline
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Place holder for Sunday 2026/02/22
[51.4792N, 0.0000E] 02/22/2026, 13:00:01 Europe/London
Object: Mars (open sky map)
RA 21h 45m 24.1s Dec -14° 39' 43.9" Appar J2000
Mag: 1.08 (Estimated: JPL) Const: Capricornus
Sun Dist: 207,714,682 km [26.4 km/s]
Earth Dist: 351,617,028 km [56.0 km/s]
In total there are 301 users online :: 0 registered, 0 hidden and 301 guests (based on users active over the past 5 minutes)
Most users ever online was 6169 on Fri Feb 06, 2026 4:17 am
Martian Year:
38
Martian Astronomical Month:
8
Solar longitude Ls:
230.5
Sol number:
454
Total number of registered users: 19,630
Total number of topics: 8,985
Total number of posts: 233,912
Today: 238226
Offline
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===
Today on Mars: 0038/17/08 Sunday Days of the week OFFSET 0 with Earth. (count from Mars to Earth )
Sol 454 Business Month 17 Fifth month of Quarter 3 of Year 38
Today on Earth: 2026/02/22 Sunday Earth Date) Post Title: Today on Mars
====*====*==
To see how this calendar works, we show the standard 28 day month at the bottom of this daily report.
There are 20 months of 28 Sols and 4 months of 27 Sols at the end of the four six-month quarters.
New Years Eve is extended to align the Business Calendar for Mars with the Astronomical calendar.
Business and Astronomical both start at zero (to the nanosecond) on New Year's Day.
This calendar has been in operation for two full Mars years (36 and 37). We are in Year 38
Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for opposition/perigee/aphelion
Martian Year: 38 Martian Astronomical Interval in 12 interval format: 8 <<== The Astronomical interval
Check Longitude: the interval will increment when longitude reaches 240 degrees
===
Solar Longitude: 230.5 Sol Number: 454 Change in degrees is +.6 Julian date is: J0038454
Solar Longitude: 229.9 Sol Number: 453 Change in degrees is +.6 Julian date is: J0038453
Solar Longitude: 229.3 Sol Number: 452 Change in degrees is +.7 Julian date is: J0038452
#>
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 date as J00##### (and set Search term)
Perihelion occurred in 2024 at Ls 251 on Sol 485 - Earth Date 2024/05/08 Next: (estimated) 2026/03/06
Perihelion occurred in 2022 at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (actual) 2024/05/08
Aphelion Earth Dates: Next: 2027/03/04 Earlier: 2025/04/16, 2023/05/30, 2021/07/12, 2019/08/25, 2017/10/07, 2015/11/20
Aphelion occurred at--- Ls 071 on Sol 152.
Aphelion occurred near Ls 070 on Sol 153 (per http://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.
Aphelion of Mars is due March 04, 2027 Sol 151-152 Note velocity of Mars was 22.0 km/s nearing Aphelion (21.97 km/s)
===
Distance: Mars >> Sun per theskylive.com: 207,714,682 km [26.4 km/s] Difference is -68267 <= -2844 km/hour at 12.0 on 02/22 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 207,782,949 km [26.4 km/s] Difference is -70287 <= -2929 km/hour at 12.0 on 02/21 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 207,853,236 km [26.4 km/s] Difference is -72289 <= -3012 km/hour at 12.0 on 02/20 (time 12:00) (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.
Next ahead: Galaxy and star in path PGC 922344 TYC 5800-97-1 RA 21h 45m 49.5s Day 0 -
Star in path TYC 5800-887-1 RA21h 43m 03.6s – Day 0 – Day 1 right at 8 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.
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
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip.
=== Time estimate will change below 342
Earth Distance in km: 2026/02/22 351,617,028 (decreasing)
Earth Distance in km: 2026/02/21 351,825,699 (decreasing)
Earth Distance in km: 2026/02/20 352,033,441 (decreasing)
<<#
Maximum Earth-Mars distance is estimated to be 401 million kilometers (both at apogee and opposite vs Sun) Minimum is about 56 million kilometers
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 Year 36. 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.
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 454 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 17 extends from Sol 447 through 474. <<== There are 28 days in Month 17. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 454 is Sunday in the Proposed Business calendar for Mars. Sol 449 was a Skip Day on Mars. Next is near 486 of Year 38
##
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. Year 38 started November 12, 2024 on Earth
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
Copyright the Mars Society All Rights Reserved
Month 17 of 24: << There are 28 days in Month 17. Fifth month of Q3
Offline
Like button can go here
This post is about the discovery by SpaceNut of a calendar design called "Darian" that is described in an article in WikiPedia.
I'd like to make as clear as possible that the Business Calendar for Mars was designed by RobertDyck independently of the Darian calendar and the two are not related in any way whatsoever.
That said, there are striking similarities, and also striking differences.
For one, the day dropped from the last month of each quarter is ** Friday ** in the Business Calendar for Mars.
For two, the month names in the Darian calendar are based upon Astrological convention.
In the Business Calendar for Mars, the months are identified by the sky directly overhead at midnight at Sagan City (Viking 1)
Gemini has prepared a table showing the sky coordinates for the view above Sagan City at midnight of each first Sol of the 24 months.
+----------+----------------------+-----------+------------+
| Month # | Zenith Constellation | RA (Midn) | Declination|
+----------+----------------------+-----------+------------+
| 01 (Sag) | Gemini / Mithuna | 06h 00m | +22.48° |
| 02 (Dha) | Gemini (End) | 07h 00m | +22.48° |
| 03 (Cap) | Cancer / Karka | 08h 00m | +22.48° |
| 04 (Mak) | Cancer (End) | 09h 00m | +22.48° |
| 05 (Aqu) | Leo / Simha | 10h 00m | +22.48° |
| 06 (Kum) | Leo (End) | 11h 00m | +22.48° |
| 07 (Pis) | Virgo / Kanya | 12h 00m | +22.48° |
| 08 (Min) | Virgo (Mid) | 13h 00m | +22.48° |
| 09 (Ari) | Virgo (End) | 14h 00m | +22.48° |
| 10 (Mes) | Libra / Tula | 15h 00m | +22.48° |
| 11 (Tau) | Libra (End) | 16h 00m | +22.48° |
| 12 (Ris) | Scorpius / Vrishika | 17h 00m | +22.48° |
| 13 (Gem) | Sagittarius / Dhanus | 18h 00m | +22.48° |
| 14 (Mit) | Sagittarius (Mid) | 19h 00m | +22.48° |
| 15 (Can) | Sagittarius (End) | 20h 00m | +22.48° |
| 16 (Kar) | Capricornus / Makara | 21h 00m | +22.48° |
| 17 (Leo) | Aquarius / Kumba | 22h 00m | +22.48° |
| 18 (Sim) | Aquarius (End) | 23h 00m | +22.48° |
| 19 (Vir) | Pisces / Mina | 00h 00m | +22.48° |
| 20 (Kan) | Pisces (End) | 01h 00m | +22.48° |
| 21 (Lib) | Aries / Mesha | 02h 00m | +22.48° |
| 22 (Tul) | Aries (End) | 03h 00m | +22.48° |
| 23 (Sco) | Taurus / Rishabha | 04h 00m | +22.48° |
| 24 (Vri) | Taurus (End) | 05h 00m | +22.48° |
+----------+----------------------+-----------+------------+
It should be possible to prepare the printed copy of the Business Calendar for Mars using existing skyscapes captured by satellites at Mars.
Many thanks to SpaceNut for providing this report of work done by Mars Society members in the past.
Many thanks to the employees and management of Google, for providing the table of coordinates.
Gemini offered this addendum:
"The Business Calendar for Mars anchors its months to the midnight zenith of Sagan City (22.48 N), ensuring that the stars overhead provide a direct, observable confirmation of the date. Because a midnight observer is facing 180 degrees away from the Sun, the 'Midnight Constellation' naturally sits in opposition to the Darian 'Solar Constellation,' creating a dual-reference system that bridges observational areography with traditional orbital mechanics."
Here is a link to the full chat: https://docs.google.com/document/d/1ohC … sp=sharing
(th)
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Place holder for today's Calendar update:
[51.4792N, 0.0000E] 02/23/2026, 13:00:07 Europe/London
Object: Mars (open sky map)
RA 21h 48m 27.9s Dec -14° 24' 04.1" Appar J2000
Mag: 1.09 (Estimated: JPL) Const: Capricornus
Sun Dist: 207,648,416 km [26.4 km/s]
Earth Dist: 351,407,406 km [56.0 km/s]
Who is online
In total there are 11 users online :: 0 registered, 0 hidden and 11 guests (based on users active over the past 5 minutes)
Most users ever online was 6169 on Fri Feb 06, 2026 4:17 am
Martian Year:
38
Martian Astronomical Month:
8
Solar longitude Ls:
231.2
Sol number:
455
Total number of registered users: 19,630
Total number of topics: 8,987
Total number of posts: 233,936
Today 238250
Below is a link to a Google Document showing a long chat with Gemini about the Business Calendar for Mars
https://docs.google.com/document/d/190S … sp=sharing
The plan in work is to produce a physical calendar in time for the beginning of Mars year 39
That will occur in September of 2026 on Earth, just ahead of the opening of the Hohmann Transfer window.
It will also be in time to catch the 2026 Holiday gift giving season on Earth
Potentially it might be in time to catch the start of the Academic year on Earth.
(th)
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===
Today on Mars: 0038/17/09 Monday Days of the week OFFSET 0 with Earth. (count from Mars to Earth )
Sol 455 Business Month 17 Fifth month of Quarter 3 of Year 38
Today on Earth: 2026/02/23 Monday Earth Date) Post Title: Today on Mars
====*====*==
To see how this calendar works, we show the standard 28 day month at the bottom of this daily report.
There are 20 months of 28 Sols and 4 months of 27 Sols at the end of the four six-month quarters.
New Years Eve is extended to align the Business Calendar for Mars with the Astronomical calendar.
Business and Astronomical both start at zero (to the nanosecond) on New Year's Day.
This calendar has been in operation for two full Mars years (36 and 37). We are in Year 38
This calendar is NOT the Darian Calendar: http://newmars.com/forums/viewtopic.php … 10#p238210
Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for opposition/perigee/aphelion
Martian Year: 38 Martian Astronomical Interval in 12 interval format: 8 <<== The Astronomical interval
Check Longitude: the interval will increment when longitude reaches 240 degrees
===
Solar Longitude: 231.2 Sol Number: 455 Change in degrees is +.7 Julian date is: J0038455
Solar Longitude: 230.5 Sol Number: 454 Change in degrees is +.6 Julian date is: J0038454
Solar Longitude: 229.9 Sol Number: 453 Change in degrees is +.6 Julian date is: J0038453
#>
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 date as J00##### (and set Search term)
Perihelion occurred in 2024 at Ls 251 on Sol 485 - Earth Date 2024/05/08 Next: (estimated) 2026/03/06
Perihelion occurred in 2022 at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (actual) 2024/05/08
Aphelion Earth Dates: Next: 2027/03/04 Earlier: 2025/04/16, 2023/05/30, 2021/07/12, 2019/08/25, 2017/10/07, 2015/11/20
Aphelion occurred at--- Ls 071 on Sol 152.
Aphelion occurred near Ls 070 on Sol 153 (per http://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.
Aphelion of Mars is due March 04, 2027 Sol 151-152 Note velocity of Mars was 22.0 km/s nearing Aphelion (21.97 km/s)
===
Distance: Mars >> Sun per theskylive.com: 207,648,416 km [26.4 km/s] Difference is -66266 <= -2761 km/hour at 12.0 on 02/23 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 207,714,682 km [26.4 km/s] Difference is -68267 <= -2844 km/hour at 12.0 on 02/22 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 207,782,949 km [26.4 km/s] Difference is -70287 <= -2929 km/hour at 12.0 on 02/21 (time 12:00) (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.
Next ahead: PGC 926865 RA 21h 49m 42.4s Day 0
Galaxy and star in path PGC 922344 TYC 5800-97-1 RA 21h 45m 49.5s Day 0 – Day 1 past 8 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.
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
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip.
=== Time estimate will change below 342
Earth Distance in km: 2026/02/23 351,407,406 (decreasing)
Earth Distance in km: 2026/02/22 351,617,028 (decreasing)
Earth Distance in km: 2026/02/21 351,825,699 (decreasing)
<<#
Maximum Earth-Mars distance is estimated to be 401 million kilometers (both at apogee and opposite vs Sun) Minimum is about 56 million kilometers
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 Year 36. 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.
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 455 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 17 extends from Sol 447 through 474. <<== There are 28 days in Month 17. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 455 is Monday in the Proposed Business calendar for Mars. Sol 449 was a Skip Day on Mars. Next is near 486 of Year 38
##
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. Year 38 started November 12, 2024 on Earth
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
Copyright the Mars Society All Rights Reserved
Month 17 of 24: << There are 28 days in Month 17. Fifth month of Q3
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Place holder for Calendar for Tuesday 2026/02/24
[51.4792N, 0.0000E] 02/24/2026, 13:00:01 Europe/London
Object: Mars (open sky map)
RA 21h 51m 31.7s Dec -14° 08' 15.3" Appar J2000
Mag: 1.10 (Estimated: JPL) Const: Capricornus
Sun Dist: 207,584,185 km [26.4 km/s]
Earth Dist: 351,196,983 km [55.9 km/s]
Martian Year:
38
Martian Astronomical Month:
8
Solar longitude Ls:
231.8
Sol number:
456
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===
Today on Mars: 0038/17/10 Tuesday Days of the week OFFSET 0 with Earth. (count from Mars to Earth )
Sol 456 Business Month 17 Fifth month of Quarter 3 of Year 38
Today on Earth: 2026/02/24 Tuesday Earth Date) Post Title: Today on Mars
====*====*==
To see how this calendar works, we show the standard 28 day month at the bottom of this daily report.
There are 20 months of 28 Sols and 4 months of 27 Sols at the end of the four six-month quarters.
New Years Eve is extended to align the Business Calendar for Mars with the Astronomical calendar.
Business and Astronomical both start at zero (to the nanosecond) on New Year's Day.
This calendar has been in operation for two full Mars years (36 and 37). We are in Year 38
This calendar is NOT the Darian Calendar: http://newmars.com/forums/viewtopic.php … 10#p238210
Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html also see: in-the-sky.org for opposition/perigee/aphelion
Martian Year: 38 Martian Astronomical Interval in 12 interval format: 8 <<== The Astronomical interval
Check Longitude: the interval will increment when longitude reaches 240 degrees
===
Solar Longitude: 231.8 Sol Number: 456 Change in degrees is +.6 Julian date is: J0038456
Solar Longitude: 231.2 Sol Number: 455 Change in degrees is +.7 Julian date is: J0038455
Solar Longitude: 230.5 Sol Number: 454 Change in degrees is +.6 Julian date is: J0038454
#>
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 date as J00##### (and set Search term)
Perihelion occurred in 2024 at Ls 251 on Sol 485 - Earth Date 2024/05/08 Next: (estimated) 2026/03/06
Perihelion occurred in 2022 at Ls 251 on Sol 485 - Earth Date 2022/06/21 Next: (actual) 2024/05/08
Aphelion Earth Dates: Next: 2027/03/04 Earlier: 2025/04/16, 2023/05/30, 2021/07/12, 2019/08/25, 2017/10/07, 2015/11/20
Aphelion occurred at--- Ls 071 on Sol 152.
Aphelion occurred near Ls 070 on Sol 153 (per http://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.
Aphelion of Mars is due March 04, 2027 Sol 151-152 Note velocity of Mars was 22.0 km/s nearing Aphelion (21.97 km/s)
===
Distance: Mars >> Sun per theskylive.com: 207,584,185 km [26.4 km/s] Difference is -64231 <= -2676 km/hour at 12.0 on 02/24 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 207,648,416 km [26.4 km/s] Difference is -66266 <= -2761 km/hour at 12.0 on 02/23 (time 12:00) (24.0 hours)
Distance: Mars >> Sun per theskylive.com: 207,714,682 km [26.4 km/s] Difference is -68267 <= -2844 km/hour at 12.0 on 02/22 (time 12:00) (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.
Next ahead: Three galaxies across path PGC 931232 RA 21h 52m 23.6s Day 0
PGC 926865 RA 21h 49m 42.4s Day 0 - Day 1 just past 8 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.
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
Light travel time today is between 19 and 20 minutes. Communications delay would be 38+ minutes round trip.
=== Time estimate will change below 342
Earth Distance in km: 2026/02/24 351,196,983 (decreasing)
Earth Distance in km: 2026/02/23 351,407,406 (decreasing)
Earth Distance in km: 2026/02/22 351,617,028 (decreasing)
<<#
Maximum Earth-Mars distance is estimated to be 401 million kilometers (both at apogee and opposite vs Sun) Minimum is about 56 million kilometers
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 Year 36. 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.
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 456 is in Month 17 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 17 extends from Sol 447 through 474. <<== There are 28 days in Month 17. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 456 is Tuesday in the Proposed Business calendar for Mars. Sol 449 was a Skip Day on Mars. Next is near 486 of Year 38
##
The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. Year 38 started November 12, 2024 on Earth
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
Copyright the Mars Society All Rights Reserved
Month 17 of 24: << There are 28 days in Month 17. Fifth month of Q3
Offline
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