Optic: NON1000 (200/1000mm Newton f5), GPU Corrector Camera: ZWO ASI 1600MM-C @ -20°C, Gain 75, Offset 15 Filter: ZWO EFW 7x36mm, ZWO 36mm Filter, LRGB Exposure: total 1.7h, R 17x2min, G 17x2min, B 17x2min, L 7x2min from RGB 210x Bias, 36xDarks, 31:31:31:31x Flat(L:R:G:B) Color: L-RGB (using artificial L from RGB-Data at Date1) Capture: SGP (Sequencing, Autofocus, Dithering, FlatWizard) Guiding: TS-OAG 9mm, ASI120MM, PHD2 Date1/Location1: 2017-05-26, Vockenroth, very good seeing Date2/Location2: 2017-05-27, Vockenroth, bad seeing

Image Processing: Pixinsight: BatchPreprocessingScript (ImageCalibration, ImageIntegration, CosmeticCorrection), StarAlignment, Blink destorted images, ImageIntegration, ChannelCombination, DBE, MaskedStretch, HistogramTransformation, SCNR, ColorSaturation, LRGB Combination

PS: maskedDynamic, maskedHighpassSharping, maskedSoftLight, maskedMinimumFilter, clippingMaskDynamic,