Astronomy Picture of the Day ·

New Comet SWAN25B over Mexico

The Astronomy Picture of the Day for September 16, 2025 is “New Comet SWAN25B over Mexico,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Daniel Korona). The original explanation runs about 156 words.

A starfield is seen above a horizon and an orange sunset. In the starfield, near the horizon, is a comet with a green head and long tail. Please see the explanation for more detailed information.
Credit: Image Credit & Copyright: Daniel Korona Copyrighted Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“A newly discovered comet is already visible with binoculars. The comet, C/2025 R2 (SWAN) and nicknamed SWAN25B, is brightening significantly as it emerges from the Sun’s direction and might soon become visible on your smartphone — if not your eyes .”

— APOD editors, September 16, 2025

Read the full explanation on science.nasa.gov

At a glance

Date
September 16, 2025
Type
Image
Credit
Credit: Image Credit & Copyright: Daniel Korona
Copyright
Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length
About 156 words

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Topics in this entry

The SunComets

Topics are matched from words in the title and explanation.

On this day: September 16 in other years

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Source

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.