Interacting Galaxies NGC6621 & 6622, a.k.a. Arp81 - 280Mly distant in Draco
Imaged from Nova Scotia, Fall, 2020
LRGB Combination
Data | |
---|---|
Altitude at culmination 66° | |
Minimum Airmass Value (sec z) 1.1 | |
Mean FWHM with 14.5" 2.8 arc-s | |
Taking Camera SBIG STL-11002XM | Nova Scotia Fall, 2020, 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 6hrs | L9x10 min, R9x10 min G9x10 min, B9x10 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.2.53 and Bob Franke's CCDBand-Aid |
Annotated Frame
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