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Astronomy Picture of the Day - Two Camera Comets in One Sky
NASA ^ | 29 Sep, 2025 | Image Credit & Copyright: Luc Perrot (TWAN)

Posted on 09/29/2025 12:25:06 PM PDT by MtnClimber

Explanation: It may look like these comets are racing, but they are not. Comets C/2025 K1 ATLAS (left) and C/2025 R2 SWAN (right) appeared near each other by chance last week in the featured image taken from France's Reunion Island in the southern Indian Ocean. Fainter Comet ATLAS is approaching our Sun and will reach its closest approach in early October when it is also expected to be its brightest -- although still only likely visible with long exposures on a camera. The brighter comet, nicknamed SWAN25B, is now headed away from our Sun, although its closest approach to Earth is expected in mid-October, when optimistic estimates have it becoming bright enough to see with the unaided eye. Each comet has a greenish coma of expelled gas and an ion tail pointing away from the Sun.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: 2025k1atlas; apod; astronomy; c2025r2swan; comet; comets; nasa; science

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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 09/29/2025 12:25:10 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 09/29/2025 12:25:32 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

Wow.


3 posted on 09/29/2025 12:25:50 PM PDT by No name given ( Anonymous is who you’ll know me as )
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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 09/29/2025 12:26:23 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

Is that a first?


5 posted on 09/29/2025 12:33:04 PM PDT by ComputerGuy
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To: MtnClimber

Solar wind socks.


6 posted on 09/29/2025 12:43:04 PM PDT by HandyDandy (“Borders, language and culture.” Michael Savage)
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To: MtnClimber

Solar wind socks.


7 posted on 09/29/2025 12:43:04 PM PDT by HandyDandy (“Borders, language and culture.” Michael Savage)
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To: MtnClimber

Makes me think they are racing...


8 posted on 09/29/2025 1:28:04 PM PDT by Deaf and Discerning
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To: MtnClimber

Mother and baby comets.


9 posted on 09/29/2025 2:42:24 PM PDT by Verginius Rufus
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To: No name given

Yeah! Double wow…..😁


10 posted on 09/29/2025 3:38:38 PM PDT by telescope115 (Ad Astra, Ad Deum…)
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To: No name given

What a sky show….


11 posted on 09/29/2025 3:40:12 PM PDT by telescope115 (Ad Astra, Ad Deum…)
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To: MtnClimber

This is an attack against Metaluna.


12 posted on 09/30/2025 1:59:43 AM PDT by minnesota_bound (Making money now. Still want much more.)
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