Astronomy Picture of the Day · June 23, 2001

The Cygnus Loop

The Astronomy Picture of the Day for June 23, 2001 is “The Cygnus Loop,” an image. It is credited to Credit: J. Hester ( ASU ), NASA. The original explanation runs about 105 words.

From the explanation

“The shockwave from a 20,000 year-old supernova explosion in the constellation of Cygnus is still expanding into interstellar space.”

— APOD editors, June 23, 2001

Read the full explanation on science.nasa.gov

At a glance

Date: June 23, 2001
Type: Image
Credit: Credit: J. Hester ( ASU ), NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 105 words

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Topics in this entry

Nebulae Supernovae

Topics are matched from words in the title and explanation.

On this day: June 23 in other years

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Source

Astronomy Picture of the Day, June 23, 2001 — science.nasa.gov/image-article/apod-2001-june-23-the-cygnus-loop

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.