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Astronomy Picture of the Day - The Da Vinci Glow
NASA ^ | 3 Apr, 2025 | Image Credit & Copyright: Giorgia Hofer

Posted on 04/03/2025 11:29:48 AM PDT by MtnClimber

Explanation: A 26 hour old Moon poses behind the craggy outline of the Italian Dolomites in this twilight mountain and skyscape. The one second long exposure was captured near moonset on March 30. And while only a a sliver of its sunlit surface is visible, most of the Moon's disk can be seen by earthshine as light reflected from a bright planet Earth illuminates the lunar nearside. Also known as the Moon's ashen glow, a description of earthshine in terms of sunlight reflected by Earth's oceans illuminating the Moon's dark surface was written over 500 years ago by Leonardo da Vinci. Of course earthshine is just the most familiar example of planetshine, the faint illumination of the dark portion of a moon by light reflected from its planet.


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 04/03/2025 11:29:48 AM PDT by MtnClimber
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To: MtnClimber

2 posted on 04/03/2025 11:30:10 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: 21stCenturion; 21twelve; 4everontheRight; A Navy Vet; A_perfect_lady; abb; AFB-XYZ; AFPhys; ...
Pinging the APOD list

πŸͺ 🌟 🌌 πŸ”

3 posted on 04/03/2025 11:31:06 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 full earth as seen from the moon is about 50 times brighter than the full moon as seen from the earth. That’s due to the clouds, the oceans, and earth being about 4 times the moon’s diameter. It would be interesting to land people on the moon while it’s new. They’d probably have plenty of light, even though it would be cold.


4 posted on 04/03/2025 11:41:09 AM PDT by Telepathic Intruder
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To: MtnClimber

That’s a first-class wowser. Thanks.


5 posted on 04/03/2025 11:44:33 AM PDT by ryderann
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To: MtnClimber
...sunlight reflected by Earth's oceans illuminating the Moon's dark surface...

Wow - I never would have thought this could happen.

6 posted on 04/03/2025 11:59:59 AM PDT by Deaf and Discerning
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To: MtnClimber
"A 26 hour old Moon "

I for one welcome our new moon.

7 posted on 04/03/2025 12:06:14 PM PDT by DannyTN
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To: Telepathic Intruder

β€œ They’d probably have plenty of light, even though it would be cold.”

Is it ever NOT cold on the moon?


8 posted on 04/03/2025 12:55:50 PM PDT by JimRed (TERM LIMITS, NOW! Finish the damned WALL! TRUTH is the new HATE fSPEECH! )
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To: JimRed
Mars ain't the kind of place to raise your kids
In fact, it's cold as hell


But the moon gets warm enough to cook a steak on the sunlit side.
9 posted on 04/03/2025 1:13:47 PM PDT by Telepathic Intruder
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