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Imaging telescope or lens:Celestron C9.25 Edge HD
Imaging camera:ZWO ASI294MC Pro
Guiding camera:Starlight Xpress Loadestar X2
Astronomik H Alpha 12 nm 1.25": 22x180" (gain: 121.00) -20C bin 1x1
Optolong L-Pro 1.25": 60x180" (gain: 121.00) -20C bin 1x1
Optolong L-Pro 1.25": 45x30" (gain: 121.00) -20C bin 1x1
Optolong L-Pro 1.25": 135x60" (gain: 121.00) -20C bin 1x1
Integration: 6.7 hours
Flat darks: ~60
Avg. Moon age: 14.19 days
Avg. Moon phase: 23.82%
Bortle Dark-Sky Scale: 7.00
Mean FWHM: 2.30
Astrometry.net job: 3252111
RA center: 5h 35' 5"
DEC center: -5° 26' 2"
Pixel scale: 1.945 arcsec/pixel
Orientation: -60.002 degrees
Field radius: 1.054 degrees
Locations: SkyShed roll-off, Upper Providence, PA, United States
Data source: Backyard
M42 as captured with ZWO ASI294MC Pro over several separate dates in January 2020. PinInsight PixelMath in combination with numerous sized Range Masks was used to combine 30, 60 and 180s L-Pro filter data to distinguish nebula details while trying to minimize core brightness. Then 180s Ha data was added in the Red channel to bring forth more nebula structure.
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