Object: M81 Optic: NON1000 (200/1000mm Newton f5), GPU Corrector Mount: Skywatcher EQ8 Camera: ZWO ASI 183MM-C @ -20°C, Gain 53, Offset 10 Filter: ZWO EFW 7x36mm, ZWO 36mm Filter Exposure: total 5.7h, L 35x4min and 17x from RGB, R 17x4min, G 17x4min, B 16x4min, 181xBias, 51x Darks, 41x Flat Color: L-RGB Capture: SGP (Sequencing, Autofocus, Dithering, FlatWizard) Guiding: TS-OAG 9mm, ASI120MM, PHD2 Date/Location: 2018-03-15, Zirndorf Image Processing: PI: BatchPreprocessingScript, CosmeticCorrection, StarAlignment, Blink, ImageIntegration, DBE, MaskedStretch, TGV-Denoise for RGB, ColorSaturation, HDRMS, DarkStructureEnhance PS: Dynamic, LuminanceLayer, maskedLuminance, Levels, maskedDynamic, maskedSelectivColors, 2xmaskedHighPassSharping, NIK Dfine2 NoiseReduction, Levels, maskedMinimumFilter |