M13: the famous globular cluster in Hercules


Images taken: Sept. 29 and Oct. 6, 2010, by Katie Lee, Gus Maples, John Netherland and Landin Smith.

Telescope: Meade 12 in with f/5.6.

Camera: SBIG ST-10 CCD

Exposures: 6 x 5 min red, 6 x 5 min green, 7 x 5 min blue (1h35m total).