M031.jpg
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M031.jpg
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