Astronomy Picture of the Day ·

The Medulla Nebula Supernova Remnant

The Astronomy Picture of the Day for April 24, 2023 is “The Medulla Nebula Supernova Remnant,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Kimberly Sibbald). The original explanation runs about 181 words.

A nearly spherical but stringy nebula is shown against a starry background. The nebula is colored blue and red. Please see the explanation for more detailed information.
Credit: Image Credit & Copyright: Kimberly Sibbald Copyrighted Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“What powers this unusual nebula? CTB-1 is the expanding gas shell that was left when a massive star toward the constellation of Cassiopeia exploded about 10,000 years ago.”

— APOD editors, April 24, 2023

Read the full explanation on science.nasa.gov

At a glance

Date
April 24, 2023
Type
Image
Credit
Credit: Image Credit & Copyright: Kimberly Sibbald
Copyright
Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length
About 181 words

All of April 2023 → · 2023 by month → · Full archive since 1995 →

Topics in this entry

NebulaeSupernovae

Topics are matched from words in the title and explanation.

On this day: April 24 in other years

On Amazon

Popular picks for space fans

As an Amazon Associate I earn from qualifying purchases.

Electronics Amazon Kindle Paperwhite Signature Edition 32GB Read astronomy and space-history books anywhere. View on Amazon → Electronics Bose QuietComfort Wireless Headphones Noise-cancelling headphones for documentaries and launch livestreams. View on Amazon →

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.