Astronomy Picture of the Day · October 12, 2004

M3: Inconstant Star Cluster

The Astronomy Picture of the Day for October 12, 2004 is “M3: Inconstant Star Cluster,” an image. The picture is copyrighted by its creator (Credit & Copyright: J. Hartman & K. Stanek ( Harvard CfA )). The original explanation runs about 154 words.

From the explanation

“Star clusters appear constant because photographs of them are frozen in time. In reality, though, cluster stars swarm the center and frequently fluctuate in brightness.”

— APOD editors, October 12, 2004

Read the full explanation on science.nasa.gov

At a glance

Date: October 12, 2004
Type: Image
Credit: Credit & Copyright: J. Hartman & K. Stanek ( Harvard CfA )
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 154 words

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Topics in this entry

Star clusters

Topics are matched from words in the title and explanation.

On this day: October 12 in other years

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Source

Astronomy Picture of the Day, October 12, 2004 — science.nasa.gov/image-article/apod-2004-october-12-m3-inconstant-star-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.