Imaging telescopes or lenses: RCOS 14.5"
Imaging cameras: SBIG STX 16803
Mounts: Paramount-ME
Software: Adobe Lightroom CC · PixInsight for Mac
Filters: Astrodon RGB · BAADER H Alpha 7nm · Astrodon S-ii · Astrodon O-iii
Dates:May 1, 2017 , July 6, 2017 , Nov. 20, 2017 , Nov. 21, 2017
Frames:
Astrodon 5nm Halpha: 26x1200" -25C bin 1x1
Astrodon RGB: 45x900" -25C bin 1x1
Astrodon O-iii: 15x1200" -25C bin 1x1
Astrodon S-ii: 48x1200" -25C bin 1x1
Integration: 40.9 hours
Avg. Moon age: 5.63 days
Avg. Moon phase: 34.37%
Astrometry.net job: 1881702
RA center: 19h 59' 34"
DEC center: +22° 42' 27"
Pixel scale: 0.550 arcsec/pixel
Orientation: 75.780 degrees
Field radius: 0.320 degrees
Resolution: 3030x2880
Locations: Deep Sky West, Rowe, New Mexico, United States
M 27, commonly known as the Dumbbell Nebula, is the first planetary nebula ever discovered, and perhaps the finest and most beautiful in the sky.
This is a (SHO)(RS)GO Combination, yes, luminance is SHO, and R=S, G=G, and B=max(B, O). S looks quite similar to R, and has a more rich fish scale like texture; O has some faint skirt around the nebula body. Combination of SHO correctly represented the lightness of the color image.
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