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Astronomy Picture of the Day - Comet R3 PanSTARRS Through Time
NASA ^ | 8 Jun, 2026 | Image Credit & Copyright: Jakub Kuřák & Martin Mašek (FZU of the Czech Academy of Sciences)

Posted on 06/08/2026 11:41:17 AM PDT by MtnClimber

Explanation: What happens to a comet as it leaves our inner Solar System? Now, the arrival of a comet into the inner Solar System is typically heralded with great fanfare and high hopes that the comet will become bright and photogenic. But on the way out, the comet's nucleus is less warmed by the Sun, less gas and dust are expelled, the bright coma around the nucleus shrinks and fades, and the tail length drops off. Many comets will then return to the outer Solar System and only return in hundreds or thousands of years. In contrast, some comets -- like Comet C/2025 R3 (PanSTARRS) -- receive a gravitational kick from the planets and so will never return. Pictured, Comet R3 PanSTARRs was imaged deeply many nights in early to mid-May near Cerro Paranal in Chile. Later images appear closer to the top and clearly show the shrinking ion tail.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; nasa

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1 posted on 06/08/2026 11:41:17 AM PDT by MtnClimber
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To: MtnClimber

2 posted on 06/08/2026 11:41:39 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

🪐 🌟 🌌 🍔

3 posted on 06/08/2026 11:42:27 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

Weird time lapse till you remember the tail doesn’t necessarily indicate direction of travel.


4 posted on 06/08/2026 11:54:05 AM PDT by TangoLimaSierra (⭐⭐To the Left, the Truth is Right Wing Violence⭐⭐)
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To: TangoLimaSierra

Yes, the comet has been flung into deep space and the solar wind blows the tail dust ahead of the direction of travel.


5 posted on 06/08/2026 11:58:34 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
Not exactly Comet Kohoutek
6 posted on 06/08/2026 12:15:30 PM PDT by NavyShoe
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To: MtnClimber

Wow.


7 posted on 06/08/2026 12:25:56 PM PDT by No name given ( Anonymous is who you’ll know me as )
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