Astronomy Picture of the Day · October 6, 2025

The Changing Ion Tail of Comet Lemmon

The Astronomy Picture of the Day for October 6, 2025 is “The Changing Ion Tail of Comet Lemmon,” an image. The picture is copyrighted by its creator (Images Credit & Copyright: Victor Sabet & Julien De Winter). The original explanation runs about 161 words.

A comet with a green head at the bottom and a complex tail extending toward the top is shown, horizontally side by side, six times. Please see the explanation for more detailed information. — Credit: Images Credit & Copyright: Victor Sabet & Julien De Winter Copyrighted Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“How does a comet tail change? It depends on the comet.”

— APOD editors, October 6, 2025

Read the full explanation on science.nasa.gov

At a glance

Date: October 6, 2025
Type: Image
Credit: Credit: Images Credit & Copyright: Victor Sabet & Julien De Winter
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 161 words