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Messier 13 - Widefield Hercules Cluster Globular Cluster In constellation Hercules ---------------------------------------------------------------------- Discovered by Edmond Halley in 1714. M13 consists of around 200,000 stars and is located around 25,100 light years away & measuring 145 light years across. M13 is estimated to be 14,000,000,000 years old. In 1974 a message to possible intelligent life was transmitted to M13. ---------------------------------------------------------------------- RA 16h 41m 41.44s : DEC +36° 27′ 36.9″ M13 has a magnitude (brightness) of 5.8 and its size is 23'.0 ---------------------------------------------------------------------- Imaging Scope : Takahashi Epsilon 160 Focal Length = 530mm Imaging Camera : Canon Rebel XTi Guide Scope : William Optics Megrez 80FD EQ6 Pro GEM Mount : Manually Guided using GSTAR-EX ---------------------------------------------------------------------- 10 x 180 second exposures [30 minutes] at ISO 1600. Imaged in dark skies Baldrine, Isle of Man, British Isles. 23:50 on 29/04/2008. |