Select an image size for a larger view:

1024 x 768

1600 x 1200
            



            
This stunning
            combination of both blue and yellow reflection, and pink emission
            nebulosity has few rivals in the fall sky. This field was very
            carefully chosen to include the nebulous open cluster at the
            top Dolidze 8 which is surrounded by NGC6914a, and the two main
            blue nebulas below which are NGC6914b in the center, and NGC6914
            below. The background field is awash with an enormous amount
            of unnamed hydrogen nebulosity which I was able to bring out
            with some additional Halpha exposures. 

            
Notice that
            there are some yellow reflection nebulas in this image. That
            color for a reflection nebula is quite uncommon in the sky, and
            warrants special attention in this region. Also, few if any other
            bright reflection nebulosites are present in Cygnus, this being
            one of the best.

Instrument:  12.5" f/5 Home made Newtonian
Mount:  Astrophysics 1200 QMD
CCD Camera:  SBIG 10XME NABG with Enhanced Water Cooling
Guider: Meade DSI-Pro  w/Lumicon Newt Easy Guider
Exposure:  Ha+LRGB = 120:120:20:20:20 (RGB Binned 2x2)
AstroDon RGB Combine Ratio:  1: 1.05: 1.11
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 6 arcsec (Maxim DL - 10min subframe), Transparency 9/10
Outside Temperature:  45 F
CCD Temperature:  -30 C
Image Processing Tools: 
Maxim DL:  Calibration, deblooming (Starizona Debloomer), aligning, stacking
Gralaks Sigma:  Stacking
PixInsight:  Curves, Deconvolution, noise reduction
Photoshop CS2:  Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup

HOME   GALAXIES     EMISSION NEBS     REFLECTION NEBS   COMETS  
   GLOBULARS     OPEN CLUST     PLANETARIES     LINKS