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The Swan Nebula
            is the brightest part of a roughly oval shaped nebula nearly
            a degree in diameter oriented about 30 degrees from horizontal.
            It is also the center of a very dim and extensive nebulosity
            complex that includes nearby M16 as well. It is only in the lower
            right corner we can see a piece of sky that does not contain
            the reddish hydrogen, and is a silvery neutral black.

            
Imaging Summer
            objects here in Arizona is quite challenging because our summer
            rainy season goes on for months on end with few breaks. This
            image was taken during the course of the last week, and represents
            two nights of unobstructed imaging.

Instrument:  12.5" f/5 Home made Newtonian
Mount:  Astrophysics 1200 QMD
CCD Camera:  SBIG 10XME NABG with Enhanced Water Cooling
Guider: Meade DSI  w/Lumicon Newt Easy Guider
Exposure:  LRGB = 90:50:50:50 
AstroDon RGB Combine Ratio:  1: 1.05: 1.2
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 10 arcsec (Maxim DL - 10min subframe), Transparency 9/10
Outside Temperature:  55 F
CCD Temperature:  -30 C
Image Processing Tools: 
Maxim DL:  Calibration, deblooming (Starizona Debloomer), aligning, stacking
PixInsight:  Curves, Deconvolution
Photoshop CS2:  Curves, Color Correction, Cleanup

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