Omega Centauri
Photographed by Scott Davis on April 14, 2013
From Eastman Lake, California
Description:
Omega Centauri, also known as NGC5139 or Caldwell 80, is an extremely large globular cluster in the constellation Centaurus, located at a distance of approximately 15,800 light years. Due to its density, it is very difficult to estimate the number of stars, but the number is well into the millions. At Eastman Lake (Latitude 37.219154) this southern sight is EXTREMELY low in the sky, peaking at just 5.9 degrees above the horizon. The strange green mass near the bottom of the image is actually the trees that Omega Centauri was barely above as it moved across the sky.
Imaging Camera:
Canon EOS 60D
Imaging Scope/Lens:
Orion Astrograph 8" f/3.9 Newtonian
Mount/Tripod:
Celestron CGEM
Guide Scope/Camera:
Orion Shorttube 80mm w/ Starshoot Autoguider
Exposure Details:
Camera settings were ISO 3200 with a shutter speed of 30 seconds. A total of 17 light frames and 20 dark frames were combined to create this final image. Stacked using Deep Sky Stacker and processed in Adobe Photoshop CS6 using Scott Rosen's DSLR LLRGB method.
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