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| Title: Leo II, UGC 6253, MCG +4-27-5, DDO 93, PGC 34176 Optic: CA300 (300/1140mm Newton) + Newtonmaster (both homemade) Corrector: Keller 3" Wynne Filter: Baader 50mm LRGB Camera: SBIG STL11000M C2 at -25°C Mount: Vixen Atlux (old model) Guiding: selfguiding Exposures: L 28x4min ( 17 true L, 11x from RGB); RGB 76:72:44min, subexposure 4min 29x Darks, 180x Bias, 33x Flat (green) Location: 2015-04-21, Zirndorf, Germany Processing Pixinsight: Image Calibration, CosmeticCorrection, StarAlignment, Image Integration, ChannelCombination, DBE, Masked-Stretch Fitswork: Hintergrund ebnen variabel Pixinsight: L-RGB Combination, SCNR, Crop, ImageAnnotation |
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