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

tahanson43206 · 2024-09-01 08:06:24

===
Today on Mars: 0037/22/13 Friday Days of the week offset 2 with Earth. (count from Mars to Earth (updated 2024/08/28))

Today on Earth: 2024/09/01 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: 321.4 Sol Number: 598 Change in degrees is +.5 Julian date is: J0037598
Solar Longitude: 320.9 Sol Number: 597 Change in degrees is +.6 Julian date is: J0037597
Solar Longitude: 320.3 Sol Number: 596 Change in degrees is +.6 Julian date is: J0037596
<<#

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: 219.177,608 km [25.1 km/s] Difference is +184079 <= +7670 km/hour at 12 on 09/01 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 218,993,529 km [25.1 km/s] Difference is +183399 <= +7642 km/hour at 12 on 08/31 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 218,810,130 km [25.1 km/s] Difference is +182720 <= +7613 km/hour at 12 on 08/30 (time 12:00) (24 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: In path – HIP 27696 RA 05h 51m 50.7s – Day 0 -
TYC 1862-674-1 RA 05h 49m 19.0s – Day 0 – Day 1 below 5 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: 2024/09/01 213,571,000 (decreasing)
Earth Distance: 2024/08/31 214,442,000 (decreasing)
Earth Distance: 2024/08/30 215,330,000 (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 598 is in Month 22 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 22 extends from Sol 585 through 613. <<== There are 28 days in Month 22. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 598 is Friday in the Proposed Business calendar for Mars. Sol 594 was a Skip Day on Mars. Next is near 630 October 3rd
##

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 22 of 24: <<== Fourth month of Quarter 4

tahanson43206 · 2024-09-02 06:05:13

Place holder for today's Calendar update:

Object: Mars [ ▸ Sky Map ] << 12:00:09 UTC
RA 05h 53m 50.3s Dec +23° 21' 37.5" Appar J2000
Mag: 0.70 (Estimated: JPL) Const: Taurus
Sun Dist: 219,362,291 km [25.1 km/s]
Earth Dist: 212,761,843 km [28.2 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
322
Sol number:
599

(th)

tahanson43206 · 2024-09-02 09:37:15

===
Today on Mars: 0037/22/14 Saturday Days of the week offset 2 with Earth. (count from Mars to Earth (updated 2024/08/28))

Today on Earth: 2024/09/02 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: 322.0 Sol Number: 599 Change in degrees is +.6 Julian date is: J0037599
Solar Longitude: 321.4 Sol Number: 598 Change in degrees is +.5 Julian date is: J0037598
Solar Longitude: 320.9 Sol Number: 597 Change in degrees is +.6 Julian date is: J0037597
<<#

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: 219,362,291 km [25.1 km/s] Difference is +184683 <= +7695 km/hour at 12 on 09/02 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 219.177,608 km [25.1 km/s] Difference is +184079 <= +7670 km/hour at 12 on 09/01 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 218,993,529 km [25.1 km/s] Difference is +183399 <= +7642 km/hour at 12 on 08/31 (time 12:00) (24 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: Stars way below path: TYC 1863-1835-1 RA 05h 54m 42.6s – Day 0 -
HIP 27696 RA 05h 51m 50.7s – Day 0 – Day 1 between 5 and 10 hour markers
====*====*>>>

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: 2024/09/02 212,629,000 (decreasing)
Earth Distance: 2024/09/01 213,571,000 (decreasing)
Earth Distance: 2024/08/31 214,442,000 (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 599 is in Month 22 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 22 extends from Sol 585 through 613. <<== There are 28 days in Month 22. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 599 is Saturday in the Proposed Business calendar for Mars. Sol 594 was a Skip Day on Mars. Next is near 630 October 3rd
##

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 22 of 24: <<== Fourth month of Quarter 4

tahanson43206 · 2024-09-03 06:01:56

Place holder for today's Calendar update

Greenwich, UK 09/03/2024, 13:00:00 Europe/London << 12:00:00 UTC
Object: Mars [ ▸ Sky Map ]
RA 05h 56m 29.4s Dec +23° 23' 02.4" Appar J2000
Mag: 0.68 (Estimated: JPL) Const: Taurus
Sun Dist: 219,547,593 km [25.0 km/s]
Earth Dist: 211,872,773 km [28.0 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
322.5
Sol number:
600

tahanson43206 · 2024-09-03 11:40:36

===
Today on Mars: 0037/22/15 Sunday Days of the week offset 2 with Earth. (count from Mars to Earth (updated 2024/08/28))

Today on Earth: 2024/09/03 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: 322.5 Sol Number: 600 Change in degrees is +.5 Julian date is: J0037600
Solar Longitude: 322.0 Sol Number: 599 Change in degrees is +.6 Julian date is: J0037599
Solar Longitude: 321.4 Sol Number: 598 Change in degrees is +.5 Julian date is: J0037598
<<#

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: 219,547,593 km [25.0 km/s] Difference is +185302 <= +7721 km/hour at 12 on 09/03 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 219,362,291 km [25.1 km/s] Difference is +184683 <= +7695 km/hour at 12 on 09/02 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 219.177,608 km [25.1 km/s] Difference is +184079 <= +7670 km/hour at 12 on 09/01 (time 12:00) (24 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 just above path: TYC 1863-1500-1 RA 05h 57m 14.8s – Day 0 -
TYC 1863-1835-1 RA 05h 54m 42.6s – Day 0 – Day 1 way 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: 2024/09/03 211,670,000 (decreasing)
Earth Distance: 2024/09/02 212,629,000 (decreasing)
Earth Distance: 2024/09/01 213,571,000 (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 600 is in Month 22 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 22 extends from Sol 585 through 613. <<== There are 28 days in Month 22. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 600 is Sunday in the Proposed Business calendar for Mars. Sol 594 was a Skip Day on Mars. Next is near 630 October 3rd
##

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 22 of 24: <<== Fourth month of Quarter 4

tahanson43206 · 2024-09-04 06:01:36

Place holder for today's Calendar update

Greenwich, UK 09/04/2024, 13:00:03 Europe/London << 12:00:03 UTC
Object: Mars [ ▸ Sky Map ]
RA 05h 59m 08.4s Dec +23° 24' 17.6" Appar J2000
Mag: 0.66 (Estimated: JPL) Const: Taurus
Sun Dist: 219,733,518 km [25.0 km/s]
Earth Dist: 210,978,666 km [27.8 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
323.1
Sol number:
601

(th)

tahanson43206 · 2024-09-04 16:06:15

===
Today on Mars: 0037/22/16 Monday Days of the week offset 2 with Earth. (count from Mars to Earth (updated 2024/08/28))

Today on Earth: 2024/09/04 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: 323.1 Sol Number: 601 Change in degrees is +.6 Julian date is: J0037601
Solar Longitude: 322.5 Sol Number: 600 Change in degrees is +.5 Julian date is: J0037600
Solar Longitude: 322.0 Sol Number: 599 Change in degrees is +.6 Julian date is: J0037599
<<#

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: 219,733,518 km [25.0 km/s] Difference is +185925 <= +7747 km/hour at 12 on 09/04 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 219,547,593 km [25.0 km/s] Difference is +185302 <= +7721 km/hour at 12 on 09/03 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 219,362,291 km [25.1 km/s] Difference is +184683 <= +7695 km/hour at 12 on 09/02 (time 12:00) (24 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 directly in path TYC 1864-67-1 RA 06h 00m 11.4s – Day 0 -
TYC 1863-1500-1 RA 05h 57m 14.8s – Day 0 – Day 1 past 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: 2024/09/04 210,605,000 (decreasing)
Earth Distance: 2024/09/03 211,670,000 (decreasing)
Earth Distance: 2024/09/02 212,629,000 (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 601 is in Month 22 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 22 extends from Sol 585 through 613. <<== There are 28 days in Month 22. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 601 is Monday in the Proposed Business calendar for Mars. Sol 594 was a Skip Day on Mars. Next is near 630 October 3rd
##

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 22 of 24: <<== Fourth month of Quarter 4

tahanson43206 · 2024-09-05 06:02:22

Place holder for today's Calendar update

Object: Mars [ ▸ Sky Map ] << 12:00:55 UTC
RA 06h 01m 46.5s Dec +23° 25' 23.5" Appar J2000
Mag: 0.65 (Estimated: JPL) Const: Taurus
Sun Dist: 219,920,120 km [25.0 km/s]
Earth Dist: 210,079,197 km [27.6 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
323.7
Sol number:
602

(th)

tahanson43206 · 2024-09-05 13:17:09

===
Today on Mars: 0037/22/17 Tuesday Days of the week offset 2 with Earth. (count from Mars to Earth (updated 2024/08/28))

Today on Earth: 2024/09/05 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: 323.7 Sol Number: 602 Change in degrees is +.6 Julian date is: J0037602
Solar Longitude: 323.1 Sol Number: 601 Change in degrees is +.6 Julian date is: J0037601
Solar Longitude: 322.5 Sol Number: 600 Change in degrees is +.5 Julian date is: J0037600
<<#

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: 219,920,120 km [25.0 km/s] Difference is +186602 <= +7775 km/hour at 12 on 09/05 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 219,733,518 km [25.0 km/s] Difference is +185925 <= +7747 km/hour at 12 on 09/04 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 219,547,593 km [25.0 km/s] Difference is +185302 <= +7721 km/hour at 12 on 09/03 (time 12:00) (24 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 right to left in the view from Earth. Slant .005 degrees.
Next up: Star below path TYC 1864-1254-1 RA 06h 03m 16.0s – Day 0 -
TYC 1864-67-1 RA 06h 00m 11.4s – Day 0 – Day 1 just past 5 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: 2024/09/05 209,827,000 (decreasing)
Earth Distance: 2024/09/04 210,605,000 (decreasing)
Earth Distance: 2024/09/03 211,670,000 (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 602 is in Month 22 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 22 extends from Sol 585 through 613. <<== There are 28 days in Month 22. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 602 is Tuesday in the Proposed Business calendar for Mars. Sol 594 was a Skip Day on Mars. Next is near 630 October 3rd
##

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 22 of 24: <<== Fourth month of Quarter 4

NewMarsMember · 2024-09-05 17:04:15

I am happy to report we received an inquiry about membership.

The applicant just joined the Mars Society, and inquired about participation in this forum.

Here is my reply:

First, thanks for joining the Society! We are one of many activities supported by the Mars Society. The current Executive Director was our webmaster until he took on the larger role.Second, we have a 20+ year history.I am a (Junior) moderator, with responsibility for admitting new members. We admit new members by email due to the 20,000 spammer accounts that were created when we had open enrollment.***I have admitted five new members since we started this procedure, and none are active. I would like very much to bring in new members, but admitting someone who then never shows up is a waste of everyone's time.***Please study the forum and examine the current active members. Are these people you want to interact with for not just a day or two, but for years?***You can see that GW Johnson is a serious contributor but we have other members who are on the light side. Everyone has a role in the history of the forum.The procedure to admit a new member is simple enough. What is challenging is finding the right person.Let's see if this is something you really want to do. We are not here to give folks a soap box. We ARE here to give folks a chance to pull on the oars.***Spend some time studying the 20+ year history, and a few of the thousands of contributors, and let me know something that would convince me you are worth admission.(th)

(th)

Last edited by NewMarsMember (2024-09-05 17:05:26)

tahanson43206 · 2024-09-06 06:02:23

Place holder for today's Calendar update

Greenwich, UK 09/06/2024, 13:00:47 Europe/London << 12:00:47 UTC
Object: Mars [ ▸ Sky Map ]
RA 06h 04m 24.0s Dec +23° 26' 19.6" Appar J2000
Mag: 0.64 (Estimated: JPL) Const: Gemini
Sun Dist: 220,107,178 km [25.0 km/s]
Earth Dist: 209,175,381 km [27.5 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
324.2
Sol number:
603

tahanson43206 · 2024-09-06 10:04:15

===
Today on Mars: 0037/22/18 Wednesday Days of the week offset 2 with Earth. (count from Mars to Earth (updated 2024/08/28))

Today on Earth: 2024/09/06 Friday 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: 324.2 Sol Number: 603 Change in degrees is +.5 Julian date is: J0037603
Solar Longitude: 323.7 Sol Number: 602 Change in degrees is +.6 Julian date is: J0037602
Solar Longitude: 323.1 Sol Number: 601 Change in degrees is +.6 Julian date is: J0037601
<<#

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: 220,107,178 km [25.0 km/s] Difference is +187058 <= +7794 km/hour at 12 on 09/06 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 219,920,120 km [25.0 km/s] Difference is +186602 <= +7775 km/hour at 12 on 09/05 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 219,733,518 km [25.0 km/s] Difference is +185925 <= +7747 km/hour at 12 on 09/04 (time 12:00) (24 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 right to left in the view from Earth. Slant .005 degrees.
Next up: Star below path TYC 1864-1817-1 RA 06h 04m 34.4s – Day 0 -
Note Boomer below path: HIP 28734
TYC 1864-1254-1 RA 06h 03m 16.0s – Day 0 – Day 1 Just past Mars – might be good for another day
====*====*>>>

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: 2024/09/06 209,024,000 (decreasing)
Earth Distance: 2024/09/05 209,827,000 (decreasing)
Earth Distance: 2024/09/04 210,605,000 (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 603 is in Month 22 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 22 extends from Sol 585 through 613. <<== There are 28 days in Month 22. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 603 is Wednesday in the Proposed Business calendar for Mars. Sol 594 was a Skip Day on Mars. Next is near 630 October 3rd
##

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 22 of 24: <<== Fourth month of Quarter 4

tahanson43206 · 2024-09-07 05:59:06

Place Holder for today's Calendar update...

Greenwich, UK 09/07/2024, 13:00:01 Europe/London << 12:00:01 UTC
Object: Mars [ ▸ Sky Map ]
RA 06h 07m 00.9s Dec +23° 27' 07.1" Appar J2000
Mag: 0.63 (Estimated: JPL) Const: Gemini
Sun Dist: 220,294,689 km [25.0 km/s]
Earth Dist: 208,267,191 km [27.3 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
324.8 << month will increment when longitude reaches 330 degrees
Sol number:
604

(th)

tahanson43206 · 2024-09-08 06:05:58

===
Today on Mars: 0037/22/19 Thursday Days of the week offset 2 with Earth. (count from Mars to Earth (updated 2024/08/28))

Today on Earth: 2024/09/07 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: 324.8 Sol Number: 604 Change in degrees is +.6 Julian date is: J0037604
Solar Longitude: 324.2 Sol Number: 603 Change in degrees is +.5 Julian date is: J0037603
Solar Longitude: 323.7 Sol Number: 602 Change in degrees is +.6 Julian date is: J0037602
<<#

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: 220,294,689 km [25.0 km/s] Difference is +187611 <= +7813 km/hour at 12 on 09/07 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 220,107,178 km [25.0 km/s] Difference is +187058 <= +7794 km/hour at 12 on 09/06 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 219,920,120 km [25.0 km/s] Difference is +186602 <= +7775 km/hour at 12 on 09/05 (time 12:00) (24 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 right to left in the view from Earth. Slant .005 degrees.
Next up: Star directly in path TYC 1877-1662-1 RA 06h 8m 52.0s – Day 0 -
TYC 1864-1817-1 RA 06h 04m 34.4s – Day 0 – Day 1 Just barely still in view when checked at 1:37 UTC on Sunday.
====*====*>>>

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: 2024/09/07 207,725,000 (decreasing)
Earth Distance: 2024/09/06 209,024,000 (decreasing)
Earth Distance: 2024/09/05 209,827,000 (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 604 is in Month 22 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 22 extends from Sol 585 through 613. <<== There are 28 days in Month 22. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 604 is Thursday in the Proposed Business calendar for Mars. Sol 594 was a Skip Day on Mars. Next is near 630 October 3rd
##

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 22 of 24: <<== Fourth month of Quarter 4

tahanson43206 · 2024-09-08 06:06:55

This post is for the calendar update for 9/7/2024

Greenwich, UK 09/08/2024, 13:00:00 Europe/London << 12:00:00 UTC
Object: Mars (open sky map)
RA 06h 09m 36.9s Dec +23° 27' 45.2" Appar J2000
Mag: 0.64 (Estimated: JPL) Const: Gemini
Sun Dist: 220,482,825 km [24.9 km/s]
Earth Dist: 207,353,746 km [27.1 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
325.4
Sol number:
605

(th)

tahanson43206 · 2024-09-08 10:05:23

===
Today on Mars: 0037/22/20 Friday Days of the week offset 2 with Earth. (count from Mars to Earth (updated 2024/08/28))

Today on Earth: 2024/09/08 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: 325.2 Sol Number: 605 Change in degrees is +.6 Julian date is: J0037605
Solar Longitude: 324.8 Sol Number: 604 Change in degrees is +.6 Julian date is: J0037604
Solar Longitude: 324.2 Sol Number: 603 Change in degrees is +.5 Julian date is: J0037603
<<#

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: 220,482,825 km [24.9 km/s] Difference is +188136 <= +7839 km/hour at 12 on 09/08 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 220,294,689 km [25.0 km/s] Difference is +187611 <= +7813 km/hour at 12 on 09/07 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 220,107,178 km [25.0 km/s] Difference is +187058 <= +7794 km/hour at 12 on 09/06 (time 12:00) (24 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 right to left in the view from Earth. Slant .005 degrees.
Next up: Star below path and ahead of 11 hours marker TYC 1877-1316-1 RA 06h 09m 55.3s – Day 0 -
TYC 1877-1662-1 RA 06h 8m 52.0s – Day 0 – Day 1 – Ahead of Mars – might be there tomorrow
====*====*>>>

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: 2024/09/08 207,200,000 (decreasing)
Earth Distance: 2024/09/07 207,725,000 (decreasing)
Earth Distance: 2024/09/06 209,024,000 (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 605 is in Month 22 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 22 extends from Sol 585 through 613. <<== There are 28 days in Month 22. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 605 is Friday in the Proposed Business calendar for Mars. Sol 594 was a Skip Day on Mars. Next is near 630 October 3rd
##

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 22 of 24: <<== Fourth month of Quarter 4

tahanson43206 · 2024-09-09 06:11:47

Place Holder for today's Calendar update:

Greenwich, UK 09/09/2024, 13:00:00 Europe/London << 12:00:00 UTC
Object: Mars (open sky map)
RA 06h 12m 12.5s Dec +23° 28' 14.7" Appar J2000
Mag: 0.64 (Estimated: JPL) Const: Gemini
Sun Dist: 220,671,469 km [24.9 km/s]
Earth Dist: 206,435,549 km [26.9 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
325.9
Sol number:
606

(th)

tahanson43206 · 2024-09-09 18:22:06

===
Today on Mars: 0037/22/21 Saturday Days of the week offset 2 with Earth. (count from Mars to Earth (updated 2024/08/28))

Today on Earth: 2024/09/09 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: 325.9 Sol Number: 606 Change in degrees is +.5 Julian date is: J0037606
Solar Longitude: 325.4 Sol Number: 605 Change in degrees is +.6 Julian date is: J0037605
Solar Longitude: 324.8 Sol Number: 604 Change in degrees is +.6 Julian date is: J0037604
<<#

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: 220,671,469 km [24.9 km/s] Difference is +188644 <= +7860 km/hour at 12 on 09/09 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 220,482,825 km [24.9 km/s] Difference is +188136 <= +7839 km/hour at 12 on 09/08 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 220,294,689 km [25.0 km/s] Difference is +187611 <= +7813 km/hour at 12 on 09/07 (time 12:00) (24 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 right to left in the view from Earth. Slant .005 degrees.
Next up: Star a little above path and at far left: TYC 1877-694-1 RA 06h 14m 21.0s – Day 0 -
TYC 1877-1316-1 RA 06h 09m 55.3s – Day 0 – Day 1 Out of view when checked at Midnight UTC
====*====*>>>

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: 2024/09/09 205,963,000 (decreasing)
Earth Distance: 2024/09/08 207,200,000 (decreasing)
Earth Distance: 2024/09/07 207,725,000 (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 606 is in Month 22 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 22 extends from Sol 585 through 613. <<== There are 28 days in Month 22. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 606 is Saturday in the Proposed Business calendar for Mars. Sol 594 was a Skip Day on Mars. Next is near 630 October 3rd
##

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 22 of 24: <<== Fourth month of Quarter 4

tahanson43206 · 2024-09-10 06:03:39

Place holder for today's Calendar update

Greenwich, UK 09/10/2024, 13:00:49 Europe/London<<<12:00:49 UTC
Object: Mars (open sky map)
RA 06h 14m 47.0s Dec +23° 28' 35.6" Appar J2000
Mag: 0.64 (Estimated: JPL) Const: Gemini
Sun Dist: 220,860,709 km [24.9 km/s]
Earth Dist: 205,512,124 km [26.7 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
326.5
Sol number:
607

tahanson43206 · 2024-09-10 14:19:53

===
Today on Mars: 0037/22/22 Sunday Days of the week offset 2 with Earth. (count from Mars to Earth (updated 2024/08/28))

Today on Earth: 2024/09/10 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: 326.5 Sol Number: 607 Change in degrees is +.6 Julian date is: J0037607
Solar Longitude: 325.9 Sol Number: 606 Change in degrees is +.5 Julian date is: J0037606
Solar Longitude: 325.4 Sol Number: 605 Change in degrees is +.6 Julian date is: J0037605
<<#

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: 220,860,709 km [24.9 km/s] Difference is +189240 <= +7885 km/hour at 12 on 09/10 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 220,671,469 km [24.9 km/s] Difference is +188644 <= +7860 km/hour at 12 on 09/09 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 220,482,825 km [24.9 km/s] Difference is +188136 <= +7839 km/hour at 12 on 09/08 (time 12:00) (24 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 right to left in the view from Earth. Slant .005 degrees.
Next up: Star above path TYC 1877-424-1 RA 06h 15m 32.5s – Day 0 -
TYC 1877-694-1 RA 06h 14m 21.0s – Day 0 – Day 1 just ahead of 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.

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: 2024/09/10 205,192,000 (decreasing)
Earth Distance: 2024/09/09 205,963,000 (decreasing)
Earth Distance: 2024/09/08 207,200,000 (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 607 is in Month 22 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 22 extends from Sol 585 through 613. <<== There are 28 days in Month 22. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 607 is Sunday in the Proposed Business calendar for Mars. Sol 594 was a Skip Day on Mars. Next is near 630 October 3rd
##

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 22 of 24: <<== Fourth month of Quarter 4

tahanson43206 · 2024-09-11 06:03:36

Place holder for today's Calendar update

Greenwich, UK 09/11/2024, 13:00:04 Europe/London << 12:00:04 UTC
Object: Mars (open sky map)
RA 06h 17m 21.0s Dec +23° 28' 47.3" Appar J2000
Mag: 0.65 (Estimated: JPL) Const: Gemini
Sun Dist: 221,050,217 km [24.9 km/s]
Earth Dist: 204,585,028 km [26.5 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
327
Sol number:
608

tahanson43206 · 2024-09-11 10:28:20

===
Today on Mars: 0037/22/23 Monday Days of the week offset 2 with Earth. (count from Mars to Earth (updated 2024/08/28))

Today on Earth: 2024/09/11 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: 327.0 Sol Number: 608 Change in degrees is +.5 Julian date is: J0037608
Solar Longitude: 326.5 Sol Number: 607 Change in degrees is +.6 Julian date is: J0037607
Solar Longitude: 325.9 Sol Number: 606 Change in degrees is +.5 Julian date is: J0037606
<<#

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: 221,050,217 km [24.9 km/s] Difference is +189508 <= +7896 km/hour at 12 on 09/11 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 220,860,709 km [24.9 km/s] Difference is +189240 <= +7885 km/hour at 12 on 09/10 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 220,671,469 km [24.9 km/s] Difference is +188644 <= +7860 km/hour at 12 on 09/09 (time 12:00) (24 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 right to left in the view from Earth. Slant .005 degrees.
Next up: Stars in slant formation above path: TYC 1878-419-1 RA 06h 18m 25.6s – Day 0 -
TYC 1877-424-1 RA 06h 15m 32.5s – Day 0 – Day 1 – past 5 hours marker
TYC 1877-694-1 RA 06h 14m 21.0s – Day 0 – Day 1 just ahead of Mars - Day 2 still visible at far right … last moments for 694
====*====*>>>

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: 2024/09/11 204,415,000 (decreasing)
Earth Distance: 2024/09/10 205,192,000 (decreasing)
Earth Distance: 2024/09/09 205,963,000 (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 608 is in Month 22 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 22 extends from Sol 585 through 613. <<== There are 28 days in Month 22. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 608 is Monday in the Proposed Business calendar for Mars. Sol 594 was a Skip Day on Mars. Next is near 630 October 3rd
##

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 22 of 24: <<== Fourth month of Quarter 4

tahanson43206 · 2024-09-12 06:02:33

Place holder for today's Calendar update:

Greenwich, UK 09/12/2024, 13:00:45 Europe/London << 12:00:45 UTC
Object: Mars (open sky map)
RA 06h 19m 54.5s Dec +23° 28' 51.7" Appar J2000
Mag: 0.65 (Estimated: JPL) Const: Gemini
Sun Dist: 221,240,363 km [24.8 km/s]
Earth Dist: 203,652,378 km [26.4 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
327.6
Sol number:
609

(th)

tahanson43206 · 2024-09-12 13:59:02

===
Today on Mars: 0037/22/24 Tuesday Days of the week offset 2 with Earth. (count from Mars to Earth (updated 2024/08/28))

Today on Earth: 2024/09/12 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: 327.6 Sol Number: 609 Change in degrees is +.6 Julian date is: J0037609
Solar Longitude: 327.0 Sol Number: 608 Change in degrees is +.5 Julian date is: J0037608
Solar Longitude: 326.5 Sol Number: 607 Change in degrees is +.6 Julian date is: J0037607
<<#

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: 221,240,363 km [24.9 km/s] Difference is +190146 <= +7923 km/hour at 12 on 09/12 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 221,050,217 km [24.9 km/s] Difference is +189508 <= +7896 km/hour at 12 on 09/11 (time 12:00) (24 hours)
Distance: Mars >> Sun per theskylive.com: 220,860,709 km [24.9 km/s] Difference is +189240 <= +7885 km/hour at 12 on 09/10 (time 12:00) (24 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 right to left in the view from Earth. Slant .005 degrees.
Next up: Star above path TYC 1878-362-1 RA 06h 21m 14.9s – Day 0 –
TYC 1878-419-1 RA 06h 18m 25.6s – Day 0 – Day 1 above 11th hour 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: 2024/09/12 203,348,000 (decreasing)
Earth Distance: 2024/09/11 204,415,000 (decreasing)
Earth Distance: 2024/09/10 205,192,000 (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 609 is in Month 22 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 22 extends from Sol 585 through 613. <<== There are 28 days in Month 22. See post 82 of Holidays topic for current details.
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 609 is Tuesday in the Proposed Business calendar for Mars. Sol 594 was a Skip Day on Mars. Next is near 630 October 3rd
##

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 22 of 24: <<== Fourth month of Quarter 4

tahanson43206 · 2024-09-13 05:58:49

Place Holder for today's Calendar update...

Greenwich, UK 09/13/2024, 13:00:01 Europe/London << 12:00:01 UTC
Object: Mars (open sky map)
RA 06h 22m 27.0s Dec +23° 28' 46.8" Appar J2000
Mag: 0.65 (Estimated: JPL) Const: Gemini
Sun Dist: 221,430,759 km [24.8 km/s]
Earth Dist: 202,716,021 km [26.2 km/s]

Martian Year:
37
Martian Astronomical Month:
11
Solar longitude Ls:
328.1
Sol number:
610

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