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Open Cluster M34: This cluster of stars is middle-aged for astronomical standards, the estimate is about 180 Mio years. It is located in a distance of 1400 LY and extends appr. 14 LY. A few of the heavy stars have already turned into Red Giants having a yellow color.

Especially in the Hi-Res version a galaxy (UGC 2227 in 260 Mio LY) can be recognized in the upper left part of the image and also the blue shining Planetary Nebula (PK 144.3-15.5).


Object Open Cluster M34
Category Open Clusters
Designation M 034
Constellation Perseus
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 - 19 Oct 2009
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