NGC 6781 in Cygnus
Imaged from Nova Scotia, Summer 2020
HaLRGB Combination
Data
Altitude at culmination 52°
Minimum Airmass Value (sec z) 1.3
Mean FWHM 2.6arc-s
Taking Camera SBIG STL-11002XM
Nova Scotia Spring, 2020, ~mag 6.4 - @-20C
Imaging OTA
AG Optics iDK 14.5"
Equivalent focal length and ratio
2465mm f/6.7
Mount
Astro-Physics 1600GTO
Guiding
PHD2/ONAG-XM/Lodestar X-2
LRGB Total Integration Time 15hrs 30min
Ha 11X30 min, L 15X10min, R-15x10 min, G-15x10 min, B-15x10 min-Astrodon Gen 2 I series and 5nm Ha Filters. Binned 1X1
Acquisition
Main Sequence Software-Sequence Generator Pro
Calibration and Stacking
Darks, Flats and Bias - Stacked and calibrated with PixInsight
Reprocessed Dec 2022
PixInsight, Affinity Photo v.2.03 and Bob Franke's CCDBand-Aid
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