M94.jpg
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M94.jpg
Object: M94, Starburst Galaxy
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 4.1h, R 9x4min, G 14x4min, B 12x4min, L 27x4min and 7x4 from RGB,
210x Bias, 41xDarks, 31:31:31:31x Flat(L:R:G:B)
Color: LRGB
Capture: SGP (Sequencing, Autofocus, Dithering, FlatWizard)
Guiding: TS-OAG 9mm, ASI120MM, PHD2
Date1/Location1: 2017-05-16, Zirndorf
Date1/Location1: 2017-05-17, Zirndorf
Image Processing:
Pixinsight:
BatchPreprocessingScript, CosmeticCorrection, StarAlignment, Blink destorted images,
ImageIntegration, ChannelCombination, AutomaticBackgroundExtractor for RGB, DBE and MureDenoise for L,
MaskedStretch, HistogramTransformation, (SCNR, ColorSaturation, TGVDenoise) for RGB, LRGBCombination
PS:
Blend of 3 images (LRGB normal, L(MureDenoised)RGB, RGB for core), softLight and highPassSharping for Core,
Dynamic, maskedDynamic, Minimumfilter for Stars, erase a spike with cloneStamp, selectiveColors, Levels