M72 - Globular Cluster in Aquarius

M72 was first observed by Peirre Mechain and Charles Messier in 1780. Being such a small object (approximately 6 arcminutes apparent diameter), both described it as "a faint nebula." Three years later, William Hershel identified the object as "a cluster of stars of a round figure."

Globular clusters reside in the halo around most galaxies. They contain some of the oldest known stars. M72 lies about 53,000 light years away.

Telescope: Explore Scientific ED152
Camera: Modified Canon 650D; Raw capture; ISO 1600
Mount:  Losmandy G-11 guided ONAG and Orion SSAG
Exposures: 6 @ 5min.
Processing:  Images were focused using the camera's live view. Frames were calibrated, aligned and combined in ImagesPlus. The composite image was adjusted in Photoshop. Topaz DeNoise was applied.
Notes: Taken on 9/28/13 from my backyard observatory in southeastern Minnesota.
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