Sagittarius Star Cloud (M24)
Photographed by Scott Davis on August 10, 2013
From Ahwahnee Hills Observatory
Charles Messier catalogued a very large section of the Sagittarius Star Cloud as M24, which is also catalogued as IC 4715. The total width of the star cloud is approximately 600 light years. Some sources improperly identify M24 as being the Open Cluster NGC6603, which can be seen in the center of this photograph.
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 800 with 45-second exposures. A total of 28 light frames, 15 dark frames, and 40 each of flat, dark flat, and bias frames were stacked to create this final image. Total integration time is 21 minutes.

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