M13
M13 - Hercules Cluster
Perhaps the most famous globular cluster.
Optics: Celestron C11 F/6.0 (1680mm Focal Length) Date: April 1-2, 2005
Camera: SBIG ST10XME with Adaptive Optics Location: Columbus, Texas
Exposure: LRGB = 50:30:25:35 minutes Imager: Kent E. Biggs