The Great Globular Cluster in Hercules Messier 13 (M13), NGC 6205 Just for testing: Messier 13 or M13 (also designated NGC 6205 and sometimes called the Great Globular Cluster in Hercules or the Hercules Globular Cluster) is a globular cluster of about 300,000 stars in the constellation of Hercules.
ISO 400. F/6.Shutter Speed: 30s. with C14 Celestron.