NGC3184 - The "Little Pinwheel" in Ursa Major
Imaged from Nova Scotia, Winter, 2022 and Spring, 2023
HaLRGB Combination
Data
Altitude at culmination 87°
Minimum Airmass Value (sec z) 1.0
Mean FWHM 3.4 arc-s
Taking Camera SBIG STL-11002XM
LRGB Data Nova Scotia Winter, 2022 - Ha Spring, 2023, skies ~mag 6.4 - CCD@-20C
Imaging OTA
AG Optics iDK 14.5"
Equivalent focal length and ratio
2465mm f/6.7
Mount
Astro-Physics 1600GTO
Guiding
PHD2/ONAG/Lodestar X2
LRGB Total integration time 18hr 30min
Ha 8x30 min, L 24X10min, R20x10 min, G-21x10 min, B21x10 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
Reprocessed May 2023
PixInsight, Affinity Photo v.2.1.0 and Bob Franke's CCDBand-Aid
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