Imaging telescope or lens: RCOS 16" RC f/9
Imaging camera: SBIG STXL-11002/FW8G-STXL
Mount: Chronos HD32 (HPO)
Guiding telescope or lens: RCOS 16" RC f/9
Guiding camera: SBIG STXL-11002/FW8G-STXL
Filters: Astrodon H-alpha 3 nm, Astrodon Blue Tru-Balance E-Series Gen 2, Astrodon Green Tru-Balance E-Series Gen 2, Astrodon Luminance Tru-Balance E-Series Gen 2, Astrodon Red Tru-Balance E-Series Gen 2
Astrodon Blue Tru-Balance E-Series Gen 2: 10x1800" bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 10x1800" bin 1x1
Astrodon H-alpha 3 nm: 12x1800" bin 1x1
Astrodon Luminance Tru-Balance E-Series Gen 2: 42x1800" bin 1x1
Astrodon Red Tru-Balance E-Series Gen 2: 15x1800" bin 1x1
Integration: 44.5 hours
Avg. Moon age: 16.24 days
Avg. Moon phase: 5.48%
Astrometry.net job: 963585
RA center: 114.241 degrees
DEC center: 65.586 degrees
Pixel scale: 0.507 arcsec/pixel
Orientation: -0.089 degrees
Field radius: 0.319 degrees
Locations: Sierra Remote Observatories, Shaver Lake, California, United States
Astronomy Image Of the Day (APOD), February 19, 2016
Magnificent island universe NGC 2403 stands within the boundaries of the long-necked constellation Camelopardalis. Some 10 million light-years distant and about 50,000 light-years across, the spiral galaxy also seems to have more than its fair share of giant star forming HII regions, marked by the telltale reddish glow of atomic hydrogen gas. The giant HII regions are energized by clusters of hot, massive stars that explode as bright supernovae at the end of their short and furious lives. A member of the M81 group of galaxies, NGC 2403 closely resembles another galaxy with an abundance of star forming regions that lies within our own local galaxy group, M33 the Triangulum Galaxy. Spiky in appearance, bright stars in this colorful galaxy portrait of NGC 2403 are in the foreground, within our own Milky Way.
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