The Orion Nebula

The following are two edits of the same set of images. They both have heavy color corrections, and show a serious lack of signal in the dark regions.

Object:
Orion Nebula (NGC 1976/ Messier 42) + NGC 1980, 1982, and the stars ιOri, θ1Ori, θ2Ori… Distance to object, approximately 1344 light-years.

Equipment:
SkyWatcher Black Diamond 1000/200 f/5 newtonian telescope
SkyWatcher HEQ5-Pro German Equatorial SynScan GoTo Mount
Nikon D90 (5.4µ size pixels), unmodified

Info:
Original capture date: 2011.01.02, 2011.01.29, 2011.01.30
Magnification: 23x (~1160mm)
Pixel scale:1.10 arcsec/pixel (Original resolution)
Pixel scale:4.01 arcsec/pixel (Published resolution)
Field size :72.23 x 48.15 arcminutes (1.2038° x 0.8025°)
Exposure, Light Frames: 150x10s at iso800 (25 minutes)
Exposure, Dark Frames: 0
Exposure, Flat Frames: 40
Exposure, offset Frames: 100 at iso800
Polar-Alignment: None/ Extremely Poor
Auto-guiding: None
Temperature: -5C
Elevation: <100 meters

Software:
RegiStax5, DeepSkyStacker, Iris, Lightroom, Photoshop

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