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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: