The Milky Way from northern Sagittarius to southern Cygnus, above the mountains of Waterton Lakes National Park; Alberta, Aug 31, 2013. This is a stack of 4 x 3 minute exposures at f/2.8 with the 24mm lens and Canon 5D MkII at ISO 1600.
Astronomy author and photographer Alan Dyer presents amazing sky sights
The Amazing Sky 