M17, the Swan Nebula, in Sagittarius

Description	:	Date: 7/20/03, 5:18 - 5:34 UT Where: Erwin W. Fick Observatory near Moingona, Iowa Telescope: 24-inch Mather telescope, f/4.2 Newtonian CCD Camera: Andor 1024 x 1024 pixel Field Size: 18 x 18 arcminutes Filter: Hydrogen Alpha Exposure: 3 minutes Comments: Median combine of three shifted images Histogram: Rayleigh Photographers: David Oesper & Maja Vuckovic