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Credit & Copyright: Anglo-Australian Telescope
Board
Explanation:
Many stars like our
Sun were formed in
open
clusters. The above open cluster,
M11, contains thousands of stars and
is just over three thousand light years distant. The stars in
this cluster all
formed together about 150 million years ago. The many bright stars in the
cluster appear blue.
Open clusters, also
called galactic clusters,
contain fewer and younger stars than
globular clusters. Also unlike
globular clusters,
open clusters are generally confined to the
plane of our Galaxy.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: open cluster
Publications with words: open cluster
See also:
- APOD: 2025 April 28 B Gum 37 and the Southern Tadpoles
- Open Star Clusters M35 and NGC 2158
- APOD: 2025 February 25 B M41: The Little Beehive Star Cluster
- APOD: 2025 February 11 B The Spider and the Fly
- APOD: 2024 October 29 B NGC 602: Stars Versus Pillars from Webb
- NGC 7789: Caroline s Rose
- APOD: 2024 July 2 B NGC 602: Oyster Star Cluster