M13 is a globular cluster in the Hercules constellation discovered by Edmond Halley in 1714, and catalogued by Charles Messier on June 1, 1764. The Arecibo message of 1974 was transmitted toward this globular cluster.
This image was taken on 2006-06-03 and consists of 4x 30 second exposures at ISO1600.
My First attempt at M13
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