M 3 Globular Cluster

Skywatcher 200/1000 @ 950mm f/5
EQ6-R Pro
ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -10°)
RGB (no filter): 658 x 30" (5h 29′)
N.I.N.A., Guiding: ZWO ASI 120 MM & PHD2
Bortle 5
Astropixelprocessor, Photoshop, Pixinsight