Deep Sky
M13
NGC6205





Great Hercules Cluster was discovered by Halley in 1714 and Messier observed it on June 1, 1764. Approx. 23,400 light years distant and 160 light years in diameter, it contains more than 1 million stars.  It is approx 25,000 light-years from and approx. 150 light-years in diameter.