The Hercules Cluster
The Hercules Cluster In the heart of the Hercules constellation, at exactly RA 16h 41m 41s and Dec +36° 27′ 35″ in equatorial coordinates, lies the Great Hercules global cluster, also known as M13 or NGC 6205. It is located between Zeta Herculis and Eta Herculis. Its apparent size is about 20 arcminutes, which is […]