Hercules Galaxy Cluster galaxy group
Hercules Galaxy Cluster, also known as the Abell 2151, is located in the constellation Hercules, and is best seen in summer.
Hercules Galaxy Cluster is magnitude , and is in size. For reference, the full moon is 30' (arc minutes) or 0.5° in size.
* One can see up to magnitude 7-8 objects with perfect eyes under ideal dark sky conditions.
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