by Dave Lassiter
Longmore Triton 5 in Coma Berenices has an extremely low surface brightness. It is also one of the largest planetaries in our night sky. It's shape resembles the more widely known, and famous Helix nebula. It is very difficult to see with even the largest of scopes. Photo taken from Harrisburg, Pa. on May 6, 2010. 14" LX 200 operating @ F3.3 and DSI 3 camera. Ten 2:49.7 exposures. Autoguiding accomplished with PHD guiding.