UMA-Ultraflux.jpg
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UMA-Ultraflux.jpg
Title: Alpha and Delta UMa and ultrafaint Flux Nebula between
Optic: Canon EF200f2.8 at f/2.8
Filter: Baader 50mm LRGB
Camera: SBIG STL11000M C2 at -25°C, selfguiding
Exposures:
L 35x4min (26 true L, 9 xL from RGB);
RGB 36:36:36min, subexposure 4min, total 3,5h
29x Darks, 108x Bias, 41x Flat
Location: Kreben, Germany
Date: 2015-04-18
Processing
Pixinsight:
Image Calibration, CosmeticCorrection, StarAlignment, Image Integration, DBE, ChannelCombination, MaskedStretch L and RGB, HistogramTransformation,
LRGBCombination, CurvesTransformation, MT, all with 64bit Float
PS: StarRemoval (J.P. Metsavainio), remove of alpha and delta UMa, Levels, Curves, DustandScratchesFilter, Levels, ColorSaturation, Blend of the Stars,
(masked)