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Astronomy Picture of the Day - Comet Lemmon Brightens
NASA ^ | 30 Sep, 2025 | Image Credit & Copyright: Victor Sabet & Julien De Winter

Posted on 09/30/2025 12:05:55 PM PDT by MtnClimber

Explanation: Comet Lemmon is brightening and moving into morning northern skies. Besides Comet SWAN25B and Comet ATLAS, Comet C/2025 A6 (Lemmon) is now the third comet currently visible with binoculars and on long camera exposures. Comet Lemmon was discovered early this year and is still headed into the inner Solar System. The comet will round the Sun on November 8, but first it will pass its nearest to the Earth -- at about half the Earth-Sun distance -- on October 21. Although the brightnesses of comets are notoriously hard to predict, optimistic estimates have Comet Lemmon then becoming visible to the unaided eye. The comet should be best seen in predawn skies until mid-October, when it also becomes visible in evening skies. The featured image showing the comet's split and rapidly changing ion tail was taken in Texas, USA late last week.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; comet; 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 09/30/2025 12:05:55 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 09/30/2025 12:06:15 PM 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

🪐 🌟 🌌 🍔

3 posted on 09/30/2025 12:07:09 PM 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
Besides Comet SWAN25B and Comet ATLAS, Comet C/2025 A6 (Lemmon) is now the third comet currently visible

So, it's the odd couple with Lemmon.

4 posted on 09/30/2025 1:31:20 PM PDT by SIDENET
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To: MtnClimber

NICE! I hope it keeps brightening.


5 posted on 09/30/2025 3:31:42 PM PDT by telescope115 (Ad Astra, Ad Deum…)
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To: MtnClimber

I drove my Uncle’s Comet through the garage wall.


6 posted on 09/30/2025 4:45:02 PM PDT by blueunicorn6 ("A crack shot and a good dancer” )
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To: blueunicorn6

Comet “Falcon” or Comet “Maverick?”


7 posted on 09/30/2025 5:02:29 PM PDT by John Milner (Marching for Peace is like breathing for food.)
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To: John Milner

Falcon


8 posted on 10/01/2025 6:08:11 AM PDT by blueunicorn6 ("A crack shot and a good dancer” )
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