Nebula in Scutum
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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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.
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.