A total of 98 exposures, each 45 seconds long, composited to form one long exposure star trail image, of stars circling above Pyramid Mountain and Patricia Lake, in Jasper National Park, Alberta. This was taken July 28, 2012 with the Canon 7D camera ay ISO 800 and 10-22mm lens at f/4. Moonlight provides the illumination, as well as light from passing car headlights on the trees.
The Amazing Sky 