The Great Hercules Cluster is another showpiece object in the Northern Hemisphere through a telescope. It is a globular cluster just visible to the naked eye in a dark location. The cluster containing over 100,000 tightly packed individual stars lies 20,000 light years distant. Located within the keystone shape of Hercules, a constellation located between the two bright stars in the sky during the summer months namely Vega and Arcturus. M13 can be found on the long edge of the keystone shape about three quarters of the way up and very slightly inside.

How to find the Hercules Cluster
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An image of the Great Hercules Cluster can be seen in the Star Clusters section of the gallery