M17 HA-RGB.jpg
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M17 HA-RGB.jpg
M17
Object: M17 Omega Nebula
Optic: NON1000 (200/1000mm Newton f5), GPU Corrector
Mount: Skywatcher AZ-EQ6
Camera: ZWO ASI 1600MM-C @ -20°C, Gain 75, Offset 15
Filter: ZWO EFW 7x36mm, Baader 36mm Filter
Exposure: total 6.1h, L 32x4min + 11x4min from RGB, R 11x4min, G 11x4min, B 12x4min, Ha 25x4min
327xBias, 48x Darks, 31x Flat(L:R:G:B)
Color: L-RGB
Capture: SGP (Sequencing, Autofocus, Dithering, FlatWizard)
Guiding: TS-OAG 9mm, ASI120MM, PHD2
Date1/Location1: 2015-06-24, Kreben, BA200 GPU
Date2/Location2: 2015-07-10, Vockenroth, BA200 GPU
Date3/Location3: 2017-08-21, Austria
Date4/Location4: 2017-08-23, Austria
Image Processing:
Pixinsight:
BatchPreprocessingScript (calibrate only), CosmeticCorrection, StarAlignment, Blink,
ImageIntegration, ChannelCombination, DBE for RGB, MaskedStretch, STF-Stretch for RGB, MaskedStretch for L,
LRGBCombination, Registration of Ha Data from 2015
PS:
Blend of Ha-Data with AdjustmentLayer Lighten, maskedMinimumFilter, ColorBalance, Levels, Dynamic
final Tweaks