Open Cluster M37: This is the brightest among the three Messier Open Clusters in the constellation Auriga. It represents a well developed cluster of several hundred stars with quite a few already in the state of Red Giants. The age is about 300 Mio years. It is in a distance of 4700 LY and 25 LY extended.

Object Open Cluster M37
Category Open Clusters
Designation M 037
Constellation Auriga
Optics Vixen R200SS 8 inch f/4.6 with Televue SBIG Paracorr
Mount Takahashi EM-11
Camera SBIG STL 11000M with internal CFW 5
Exposure 4x5 min (1x1 bin) each Astrodon True Balance RGB filterset, Maxim DL for image acquisition
Calibration Dark + Flat Frame
Guiding Meade DSI Pro II and TMB 80 as Guide Scope, Maxim DL as guiding software
Processing Maxim DL5, Photoshop. Color Code RGB
Location-Date Eningen, Germany - 27 Sep 2009
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