M3 - Globular Cluster in Canes Venatici

Imaged from Nova Scotia, Spring 2016 and 2017


LRGB Combination

Altitude at culmination 74
Minimum Airmass Value (sec z) 1.0
Mean FWHM 4.9 arc-s
Taking Camera SBIG STL-11002XM Nova Scotia Spring 2016-17, ~mag 6.4 - no moon @-20C
Imaging OTA AGO 14.5" iDK
Equivalent focal length and ratio 2465mm @ f/6.7
Mount Astro-Physics 1600GTO
Guiding PHD2/ONAG/Lodestar X-2
LRGB Total Integration Time 7hrs 50mins R12x10 min, G12x10 min, B12x10 min, Lum-11x10min,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, Adobe Photoshop CS4 and Bob Franke's CCDBand-Aid


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