NGC7640 in Andromeda
Imaged from Nova Scotia, Fall, 2021
LRGB Combination
Data
Altitude at culmination 86°
Airmass Value at culmination(sec z) 1.0
Taking Camera SBIG STL-11002XM
Nova Scotia Fall 2021 skies~mag 6.4 sensor @-20C
Imaging OTA
AGO 14.5" iDK
Equivalent focal length and ratio
2465@f/6.7
Mount
Astro-Physics 1600GTO
Guiding
PHD2/ONAG/Lodestar X-2
LRGB Total Integration Time 9hrs
L 15X10min, R15x10min, G-12x10min, B12x10min-Astrodon Gen 2 I series Filters. All binned 1X1
Acquisition
Main Sequence Software-Sequence Generator Pro
Calibration and Stacking
Darks, Flats and Bias - Stacked and calibrated with PixInsight
Reprocessed Jan 2023
PixInsight, Affinity Photo v.2.03 and Bob Franke's CCDBand-Aid
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