M92 - Globular Cluster in Hercules

M92 was first discovered by Johann Bode in 1777 and was later independently discovered by Charles Messier in 1781. This is a bright globular cluster but is overshadowed by M13, which lies nearby in the same constellation.
Telescope: Orion 10 in. f/4.7 Newtonian; Baader coma corrector
Camera: Modified Canon T2i (550D); ISO 800; Raw capture
Mount:  Losmandy G11
Guiding: SSAG on 50mm Lumicon finder scope
Exposures: 5 @ 3minutes
Processing: Images were focused using Live View. Raw images were converted in Canon Digital Photo Professional. They were aligned and combined in ImagesPlus. The composite was slightly cropped and adjusted (Levels, Curves) in Photoshop. Noise was reduced using Topaz DeNoise.
Note: Taken from my backyard observatory in southeastern Minnesota on 4/21/12. Temp: 30F; Humidity: 88%
   
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