This giant globular cluster contains over 10 million stars. The majority are Population II stars. They include red giants over 10 billion years old, approaching the end of their stellar lives.

12 1/2″ Ritchey-Chretien Telescope with a ST10XE/CFW8 ,F/6 RGB(2/5min2x2bin.RGB weighted 1.0R,1.0G, 1.65B)