M61 in Virgo

Imaged from Nova Scotia, Spring, 2023

Wikipedia Link for M61

 

RGB Combination

Data
Altitude at culmination 50°
Minimum Airmass Value (sec z) 1.3
Mean FWHM 3.4 arc-s
Taking Camera SBIG STL-11002XM Nova Scotia Spring 2023, skies ~mag 6.6 - CCD @ -20C
Imaging OTA AGO 14.5" iDK
Equivalent focal length and ratio 2465mm @ f/6.7
Mount Astro-Physics 1600GTO
Guiding PHD2/ONAG/Ultrastar Pro
RGB Total Integration Time 7hrs R12x10 min G12x10 min, B18x10 min, 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
Processed PixInsight, Affinity Photo v.2.04 and Bob Franke's CCDBand-Aid

Annotated Frame

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