Who ?

Problems/Comments:

SBIG ST10 XME
L=12x20s 1xBin, R,G,B=5x30s
Pollux 0.8m azimutal mounted telescope
3557mm (=140 inch) f/4.44
SBIG Filter Set provided with the CFW8
3-lens Wynne corrector
average of 1.57 arc seconds
MaximDL LRGB composit, PS 5.5, CCDSharp
Very good seeing and good sky conditions.

Philipp Keller and Christian Fuchs

A bright and well-known Globular Cluster in Canes Venatici. The cluster contains old stars (red and orange) as well as younger stars (blue). The young stars are believed to be formed by stellar interaction. About 500.000 stars belong to M3. You want to start counting ?