M81 in Ursa Major

Imaged from Nova Scotia, Spring, 2015







LRGB Combination
Altitude at culmination 69
Minimum Airmass Value (sec z) 1.1
Mean FWHM 3.3 arc-s
Taking Camera SBIG STL-11002XM Nova Scotia Spring, 2015, ~mag 6.4 - @-20C
Imaging OTA AG Optics iDK 14.5"
Equivalent focal length and ratio 2465mm f/6.7
Mount Astro-Physics 1600GTO
LRGB Total integration time 7hr 30min L 18X10min, R9x10 min, G-9x10 min, B9x10 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 PixInsight, Adobe Photoshop CS4 and Bob Franke's CCDBand-Aid


Use "Back" button or Return to Home