Astronomy Picture of the Day ·

Composite Messier 20 and 21

The Astronomy Picture of the Day for June 28, 2017 is “Composite Messier 20 and 21,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Martin Pugh). The original explanation runs about 172 words.

Composite Messier 20 and 21
Credit: Image Credit & Copyright: Martin Pugh Copyrighted Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“The beautiful Trifid Nebula, also known as Messier 20, lies about 5,000 light-years away, a colorful study in cosmic contrasts . It shares this nearly 1 degree wide field with open star cluster Messier 21 (top left).”

— APOD editors, June 28, 2017

Read the full explanation on science.nasa.gov

At a glance

Date
June 28, 2017
Type
Image
Credit
Credit: Image Credit & Copyright: Martin Pugh
Copyright
Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length
About 172 words

All of June 2017 → · 2017 by month → · Full archive since 1995 →

Topics in this entry

NebulaeStar clusters

Topics are matched from words in the title and explanation.

On this day: June 28 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.