NGC2174 Nebula in Orion\
Emission Nebula in Orion
Uploaded 2/9/16

 
This
            large nebula in the northern part of Orion is much larger than
            our old film shots suggest, spanning several degrees and includes
            both emission and reflection nebulosities. This is one of the
            first shots with our new 10" f/3.9 astrograph and proves
            the Baader coma corrector does a great job at producing sharp
            stars right into the corners.

            
Select an image size for a larger view

1290 x 960:


Instrument:  10" f/3.9 Orion Astrograph Newtonian
Mount:  Astrophysics 1200 QMD
CCD Camera:  SBIG 10XME NABG with Enhanced Water Cooling
Guider: Meade DSI Pro  w/80mm piggyback refractor
Exposure:  LRGB:  50:6:6:6
AstroDon RGB Combine Ratio:  1: 1.05: 1.2
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 2 arcsec , Transparency 9/10
Outside Temperature:  25 F
CCD Temperature:  -20 C
Image Processing Tools: 
Maxim DL:  Calibration, deblooming (Starizona Debloomer), aligning, stacking
PixInsight:  Curves, Deconvolution
Photoshop CS2:  Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup

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