M13, The Great Cluster in Hercules

Date   06/13/2007
Conditions   Transparency 3/5, Seeing 2/5, 20.2 mags/sq arcsec at zenith
Scope   Vixen VC200LDG @ f/9
Filters   Baader UV-IR Cut
Camera   QHY-8
Exposure   5x300s, Gain 63, Offet 115
Processing   ACP/MaximDL, acquisition; ImagesPlus, bayer interpolation, alignment/stacking, ddp, ARL; PS CS2, levels, curves, USM, Noel's Actions, space noise; Gradient Exterminator
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