M97.jpg
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M97.jpg
Object: M97, Owl Nebula
Date1/Location1: 2019-04-06, Kreben
Optic: NON1000 (200/1000mm Newton f5), GPU Corrector
Mount: Skywatcher AZ-EQ6
Date2/Location2: 2019-04-20, Zirndorf
Date3/Location3: 2019-04-21, Zirndorf
Optic: CA300 (300/1200mm Newton f4), GPU Corrector
Mount: Skywatcher EQ8
Camera: ZWO ASI 183MM-C @ -20°C, Gain 53, Offset 10
Filter: ZWO EFW 7x36mm, Baader 36mm Filter
Exposure: total 11.1h, R 12x4m, G 15x4m, B 13x4m, OIII 107x4m, H-Alpha 20x4m
256xBias, 51x Darks, 41x Flat
Capture: INDI Lib, INDI Starter, CCDCiel (Sequencing, Autofocus, Dither, AutomaticFlat)
Guiding: TS-OAG 9mm, ASI120MM, PHD2
Image Processing:
PI:
BatchPreprocessingScript, CosmeticCorrection, StarAlignment, Blink, ImageIntegration, ChannelCombination,
AutomaticBackgroundExtractor, DynamicBackgroundExtraction, MaskedStretch, HistogramTransformation,
PhotometricColorCorrection,
PS:
OIII Channel as Luminance, blend of a weak strechted image of central nebula, curves
levels, dynamic, maskedNIK Collection dfine2, levels, colorBalance
not all channels used for certain versions