Helix Nebula (NGC7293)
Photographed by Scott Davis on August 2, 2013
From Courtright Reservoir, CA
The Helix Nebula, catalogued as NGC7293, is a planetary nebula located in the constellation Aquarius. The nebula itself is actually relatively close to Earth, at an estimated distance of just 700 light years. The exact age of this nebula is not known, but is estimated to be approximately 10,000 years.
Imaging Camera:
Canon EOS 60D
Imaging Scope/Lens:
Orion Astrograph 8" f/3.9 Newtonian
Celestron CGEM (Hypertuned)
Guide Scope/Camera:
Orion Shorttube 80mm w/ Starshoot Autoguider
Exposure Details:
Camera settings were ISO 1600 with 180-second exposure time. A total of 55 light frames, 10 dark frames, and 40 each of flats, dark flats, and bias frames were stacked to create this final image. Total integration time is 2 hours, 45 minutes.

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