The Pelican Nebula in Cygnus
Emission Nebula
Uploaded 9/24/16

 
Another
            test shot using the six inch Cometracker astrograph, this one
            is about 2 hours of exposure data from here in Payson, the night
            was dry and clear, but the wind was making a mess of the star
            images with poor seeing. Fortunately, the six inch only has a
            focal length of 22 inches, so it was far less an issue.

            
Select an image size for a larger view:

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Instrument:  Meade 622 Six inch f/3.6 Schmidt Newtonian
Mount:  Astrophysics 1200 QMD
CCD Camera:  SBIG 10XME NABG with Enhanced Water Cooling
Guider: Meade DSI Pro  w/80mm piggyback refractor
Exposure:  LRGB: 70:70:20:20:20
AstroDon RGB Combine Ratio:  1: 1.05: 1.2
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 3 arcsec , Transparency 9/10
Outside Temperature:  50 F
CCD Temperature:  -20 C
Image Processing Tools: 
Maxim DL6:  Calibration, deblooming (Starizona Debloomer), aligning, stacking
PixInsight:  Curves, Deconvolution
Photoshop CS2:  Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup

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