M104 - The Sombrero Galaxy in Virgo
Imaged from Nova Scotia, Winter 2019
LRGB Combination
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Data
Altitude at culmination 34°
Minimum Airmass Value (sec z) 1.8
Taking Camera SBIG STL-11002XM
Nova Scotia winter 2019, ~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 X2
HaLRGB Total Integration Time 19hrs
L-42X10 min R24X10 min, G-24X10 min, B24X10 min-Astrodon Gen 2 I series Filters. 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