Star ClusterCharles LilloMay 06, 2014vixen VC200L, M13, Hercules Cluster, NGC 6205, sBigComment M13 The Great Globular Cluster in Hercules or M13, is a globular cluster of about 300,000 stars in the constellation of Hercules. Star ClusterCharles LilloMay 06, 2014vixen VC200L, M13, Hercules Cluster, NGC 6205, sBigComment
