NGC6914
/ Dolidze 8
Emission
and Reflection Nebulas in Cygnus
Uploaded
9/28/08
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 upper right
Dolidze 8 which is surrounded by NGC6914a, and the two main blue
nebulas below which are NGC6914b in the center, and NGC6914 to
its left. 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.
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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: LRGB = 120:40:40:40
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 8/10
Outside Temperature: 60F
CCD Temperature: -30 C
Image Processing Tools:
Maxim DL: Calibration, deblooming (Starizona Debloomer), aligning, stacking
Gralaks Sigma: Stacking
PixInsight: Curves, Deconvolution
Photoshop CS2: Curves, Color Correction, Cleanup
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