M13

M13, the great Hercules globular cluster
Takahashi Sky 90 at f/4.5
SBIG STL-4020M (self-guided)
Hutech LPS Filter
Luminance: 20 minutes (2 minute subs)
RGB: 10 minutes each channel (1 minute subs, binned 2x2)
Processed in Maxim/DL and Photoshop
Noel Carboni's Astronomy Tools Actions