M91 and NGC 4571 in Coma Berenices
Imaged from Nova Scotia, May 28, 2024
LRGB Combination
Annotated Image
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Data
Altitude at culmination 61°
Minimum Airmass Value (sec z) 1.1
Taking Camera SBIG STL-11002XM
Nova Scotia May14 2024, skies~mag 6.4 - CCD sensor @-20C
Imaging OTA
AGO 14.5" iDK
Equivalent focal length and ratio
2465mm f/6.7
Mount
Astro-Physics 1600GTO
Guiding
PHD2/ONAG XM/Ultrastar
RGB Integration Time 8hrs 40mins
L26X10 min, R9X10 min, G-9X10 min, B8X10 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
Processed May 2024
PixInsight, Affinity Photo v.2.4.2 and Bob Franke's CCDBand-Aid