SGH-F Star Clusters

Pleiades Star Cluster

The Pleiades is perhaps the most famous star cluster in the sky. It can be seen without binoculars from even light-polluted cities. Also known as the Seven Sisters and M45, the Pleiades is one of the brightest and closest open clusters. The Pleiades contains over 3,000 stars; with the unaided eye, we see only the six-or-so brightest stars. It is about 400 light-years away, and 13 light-years across.
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