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| Object: B33, Horsehead Nebula in Orion Optic: NON1000 (200/1000 Newton f/5) + GPU Coma Corrector Camera: Moravian G2 8300 @-30°C, EFW-2S-10, Moravian OAG Filter: Baader 36mm Filter, LRGBHa Exposure: total 3,5h , R 7x5min, G 7x5min, B 7x5min, L 7x5min and 7xL obtained from RGB, Ha 7x10min, 37x Dark, 200x Bias, 41x Flat(R), Guiding: QHY5L-II, PHD2 Date/Location: 2017-01-19, Kreben Image Processing: Pixinsight: ImageCalibration, CosmeticCorrection, ImageRegistration, ImageIntegration ChannelCombination, MaskedStretch, SCNR PS: HaRGB with Lighten, maskedMinimumfilter for L, L-R(Ha)GB Combination, Dynamic, maskedHighPasssharping maskedColorBalance, CloneStamp (erase spikes) CRAW: final tweaks |
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