The Great Hercules Cluster M13. Discovered by E. Halley in 1774. In 1764, Charles Messier included it in his catalog as M13. Apparent magnitude +5.8 and it is visible to the naked eye. (in gray and black light pollution zones). Imaging was conducted at the object's declination of 79.5 degrees.
Comments
Comments are available only to registered users. Register or log in to leave a comment.