Globular Clusters

A globular cluster is a spheroidal conglomeration of stars. Globular clusters are bound together by gravity, with a higher concentration of stars towards their centers. They can contain anywhere from tens of thousands to many millions of member stars. Their name is derived from Latin globulus (small sphere). [1]
Hercules Globular Cluster M13

Hercules Globular Cluster – M13 – Messier 13 – NGC 6205

Messier 13 or M13, also designated NGC 6205 and sometimes called the Great Globular Cluster in Hercules or the Hercules ...
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  1. Globular cluster - Wikipedia 22/10/06[]

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