M - 1 3 i n H e r c u l e s
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M-13, in a 22 minute exposure taken at Whitefish Bay, Wis. on Jan. 15, 2003 through a Nikon 800mm f/5.6 lens. At lower left is NGC 6207, a 12th magnitude galaxy. Film was E200 35mm slide film, processed normally. Sky transparency was about 8. It was shot just before dawn. Tracking was with an ST-4 through an ETX90. |