M99 NGC4254 in Coma Berenices
Imaged from Nova Scotia, Winter, 2025
LRGB Combination
Annotated Image
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Data
Altitude at culmination 60°
Minimum Airmass Value (sec z) 1.2
Taking Camera SBIG STL-11002XM
Nova Scotia Winter, 2025, 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 24hrs 40mins
L-51X10 min, R-30X10 min, G-33X10 min, B-34X10 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.2.6.0 and Bob Franke's CCDBand-Aid