M3

M3 is a fine globular cluster in the constellation Canes Venatici. It is approximately 40 thousand light years distant from us, and like all globular clusters contains many elderly red stars.

Takahashi Sky 90 at f/4.5
SBIG STL-4020M (self-guided)
Takahashi EM-200
Hutech LPS Filter
RGB: 35 minutes each channel (5 minute subexposures)
Processed in Maxim/DL and Photoshop
Noel Carboni's Astronomy Tools Actions