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Astronomy Picture of the Day - The Images not Posted during the Government Shutdown - A Double Helix Lunar Eclipse
NASA ^ | 3 Nov, 2025 | Image Credit & Copyright: Chunlin Liu

Posted on 12/19/2025 8:24:48 AM PST by MtnClimber

Explanation: The image was timed to capture a total lunar eclipse -- but it came with quite a twist. First, the eclipse: the fully Earth-shadowed Moon is visible as the orange orb near the top. The eclipsed Moon's orange color is caused by a slight amount of red light scattered first by Earth's atmosphere, adding a color like a setting Sun. Now, the twist: one of the apparent double helix bands is the Milky Way, the central disk of our home galaxy. The second band is zodiacal light, sunlight scattered by dust in our Solar System. The reason they cross is because the plane where dust orbits our Sun is tilted relative to the plane where stars orbit our Galaxy. This well-known tilt is shown dramatically in the featured wide-angle Mercator-projected picture, spanning from horizon to horizon, captured in early September from Mingantu Observing Station in Inner Mongolia, China.


TOPICS: Astronomy; 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 12/19/2025 8:24:48 AM PST by MtnClimber
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To: MtnClimber

2 posted on 12/19/2025 8:25:04 AM PST 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

🪐 🌟 🌌 🍔


3 posted on 12/19/2025 8:25:59 AM PST 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

Wow.


4 posted on 12/19/2025 8:35:09 AM PST by No name given ( Anonymous is who you’ll know me as )
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To: MtnClimber

Beautiful.


5 posted on 12/19/2025 8:43:55 AM PST by ConservativeMind (Trump: Befuddling Democrats, Republicans, and the Media for the benefit of the US and all mankind.)
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To: MtnClimber

A giant microwave oven that cooks those cheeseburgers that fall from the sky.


6 posted on 12/19/2025 9:17:29 AM PST by blueunicorn6 ("A crack shot and a good dancer” )
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To: MtnClimber

Nice!


7 posted on 12/19/2025 11:23:45 AM PST by telescope115 (Ad Astra, Ad Deum…)
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