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Astronomy Picture of the Day - The Images not Posted during the Government Shutdown - Comet Lemmon over the High Tatras
NASA ^ | 22 Oct, 2025 | Image Credit & Copyright: Tomáš Slovinský & Constantine Themelis

Posted on 12/07/2025 9:11:42 AM PST by MtnClimber

Explanation: Comet Lemmon putting on a show for cameras around the globe. Passing nearest to the Earth this week, the photogenic comet C/2025 A6 (Lemmon) is now extending two long tails : a blue ion tail and a white dust tail. The ion tail is pushed away from the Sun by the ever-present by ever-changing solar wind, and shows structure also created by how much gas is ejected at any one moment. It glows because it is ionized by high energy sunlight. The dust tail is pushed away from the comet by sunlight and shines by reflecting sunlight. The featured image is an enhanced composite of 50 exposures all taken two days ago from Mlynica, Slovakia. The mountains in the foreground are the High Tatras that partly separate Slovakia from Poland. Although Comet Lemmon is best visible in long camera exposures, the shedding ice ball has become faintly visible in northern skies even to unaided eyes through dark skies toward the west after sunset.[Note: this is a month old, not visible now}


TOPICS: Astronomy; Science
KEYWORDS: apod; nasa; tatas
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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 12/07/2025 9:11:42 AM PST by MtnClimber
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To: MtnClimber

2 posted on 12/07/2025 9:12:10 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

3 posted on 12/07/2025 9:12:37 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

🪐 🌟 🌌 🍔


4 posted on 12/07/2025 9:13:22 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

5 posted on 12/07/2025 9:17:23 AM PST by Diogenesis (Si vis pacem, para bellum)
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To: MtnClimber

Beautiful photo! What a great composition. Thanks for labeling it!


6 posted on 12/07/2025 10:40:08 AM PST by telescope115 (Ad Astra, Ad Deum…)
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To: Diogenesis

What an awesome photo, did you take it?


7 posted on 12/07/2025 10:41:36 AM PST by telescope115 (Ad Astra, Ad Deum…)
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To: telescope115

https://en.wikipedia.org/wiki/C/2025_A6_%28Lemmon%29


8 posted on 12/07/2025 11:23:08 AM PST by Diogenesis (Si vis pacem, para bellum)
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