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Astronomy Picture of the Day - Two Worlds, One Sun
NASA ^ | 15 Jun, 2025 | Left Image Credit & Copyright: Damia Bouic; Right Image Credit: NASA, JPL-Caltech, MSSS; Digital pro

Posted on 06/15/2025 10:17:00 AM PDT by MtnClimber

Explanation: How different does sunset appear from Mars than from Earth? For comparison, two images of our common star were taken at sunset, one from Earth and one from Mars. These images were scaled to have the same angular width and are featured here side-by-side. A quick inspection will reveal that the Sun appears slightly smaller from Mars than from Earth. This makes sense since Mars is 50% further from the Sun than Earth. More striking, perhaps, is that the Martian sunset is noticeably bluer near the Sun than the typically orange colors near the setting Sun from Earth. The reason for the blue hues from Mars is not fully understood, but thought to be related to forward scattering properties of Martian dust. The terrestrial sunset was taken in 2012 March from Marseille, France, while the Martian sunset was captured in 2015 by NASA's robotic Curiosity rover from Gale crater on Mars.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; nasa
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 06/15/2025 10:17:00 AM PDT by MtnClimber
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To: MtnClimber

2 posted on 06/15/2025 10:17:24 AM PDT by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber

I like our sun better.


3 posted on 06/15/2025 10:18:30 AM PDT by BenLurkin (The above is not a statement of fact. It is opinion or satire. Or both.)
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To: 21stCenturion; 21twelve; 4everontheRight; A Navy Vet; A_perfect_lady; abb; AFB-XYZ; AFPhys; ...
Pinging the APOD list

πŸͺ 🌟 🌌 πŸ”

4 posted on 06/15/2025 10:18:35 AM PDT by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber

The picture on the right, the Martian sunset, I have used as my wallpaper, and I have wowed people by telling them that that is where it’s from.


5 posted on 06/15/2025 11:33:15 AM PDT by telescope115 (I NEED MY SPACE!!! πŸ”­)
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To: MtnClimber

Wow.


6 posted on 06/15/2025 11:40:36 AM PDT by No name given ( Anonymous is who you’ll know me as)
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To: MtnClimber

I’m a bit surprised that the sun doesn’t appear even smaller from Mars.

I recall calculating it once — Phobos & Deimos don’t come close to producing an eclipse.


7 posted on 06/15/2025 4:07:06 PM PDT by scrabblehack
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To: MtnClimber
        venus                  earth                   moon                   mars                titan

8 posted on 06/16/2025 8:20:06 AM PDT by martin_fierro (< |:)~)
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To: martin_fierro

Interesting set of photos.


9 posted on 06/16/2025 8:24:53 AM PDT by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber

#2 Look closer and you will see wine bottles everywhere in the photo on the left side.... πŸΎπŸ‡

The Martians must be teetotalers.


10 posted on 06/16/2025 8:59:45 AM PDT by minnesota_bound (Making money now. Still want much more.)
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