The International Space Station passes over Banff, Alberta, as seen from Mt Norquay viewpoint looking south, August 19, 2011. This is a stack of three 45-second exposures at f/4 and ISO1600 with the Canon 5D MkII and 8mm lens, taken as part of a time-lapse sequence. The two gaps in the trails caused by the interval between frames was patched in Photoshop.
The Amazing Sky 