Title: M31 Andromeda Galaxy Optic: Skywatcher Esprit 100/550 Refractor Flatner: Skywatcher Esprit 100/550 Flattner Filter: Baader 50mm LRGB Camera: SBIG STL11000M C2 at -20°C Capture/Guiding: Nebulosity3, PHD2 Exposures: total 9,2h RGB 90:85:90, subexposure 5min L 57x5min, 39 true, 18 from RGB 35x Darks, 157x Bias, 42x Flat Date1: 2015-08-08 Date2: 2015-08-10 Date3: 2015-08-11 Location: Ostirol, Austria Processing Pixinsight: Image Calibration, CosmeticCorrection, StarAlignment (BicubicBSpline, ClampThr 0.1), Image Integration, DrizzleIntegration, ChannelCombination, BackgroundNeutralization, DBE, Stretch with HT and Curves, LRGB-Combinationk, 3xStarMask, PixelMath (mask1+mask2+mask3), ColorCalibration, maskedColorSaturation, unsharpMasking PS: 2xmaskedHighPassSharping, Dynamic, maskedSoftLight, maskedDynamic, Levels, ColorSaturation(remove green), maskedColorSaturation, Hue |