Astronomy Picture of the Day · September 6, 2011

M6: The Butterfly Cluster

The Astronomy Picture of the Day for September 6, 2011 is “M6: The Butterfly Cluster,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Sergio Eguivar Buenos Aires Skies). The original explanation runs about 113 words.

From the explanation

“To some, the outline of the open cluster of stars M6 resembles a butterfly. M6 , also known as NGC 6405, spans about 20 light-years and lies about 2,000 light years distant.”

— APOD editors, September 6, 2011

Read the full explanation on science.nasa.gov

At a glance

Date: September 6, 2011
Type: Image
Credit: Credit: Image Credit & Copyright: Sergio Eguivar Buenos Aires Skies
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 113 words

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Topics in this entry

Star clusters

Topics are matched from words in the title and explanation.

On this day: September 6 in other years

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Source

Astronomy Picture of the Day, September 6, 2011 — science.nasa.gov/image-article/apod-2011-september-6-m6-the-butterfly-cluster

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.