Object: M15 Optic: NON1000 (200/1000mm Newton f5), GPU Corrector Mount: Skywatcher AZ-EQ6 Camera: ZWO ASI 1600MM-C @ -20°C, Gain 75, Offset 15 Filter: ZWO EFW 7x36mm, Baader 36mm Filter Exposure: total 20min, L 5x2min, R 1x2min, G 1x2min, B 3x2min 327xBias, 48x Darks, 31x Flat(L:R:G:B) Color: RGB Capture: SGP (Sequencing, Autofocus, Dithering, FlatWizard) Guiding: TS-OAG 9mm, ASI120MM, PHD2 Date/Location: 2017-09-26, Kreben Image Processing: Pixinsight: BatchPreprocessingScript (calibrate only), CosmeticCorrection, StarAlignment, Blink, ImageIntegration, ChannelCombination, ABE, PhotometricColorCalibration, MaskedStretch, HistogramTransformation, TGVDenoise for RGB, ColorSaturation, MT for RGB, Convolution for RGB LRGB-Combination, SCNR PS: Blend of RGB in Core, NIK Dfine2 NoiseReduction to Background, Dynamic, maskedGaussBlurr of defect Stars due MaskedStretch, Levels |