Four-Hour Lodgepoles

Four-Hour Lodgepoles
Lake Louise Campground, Banff Park, Alberta Canada, 12:00am 19 Aug 1998
20mm Nikon lens at f/8, 4 hour exposure on E200 Ektachrome processed +2 stops (ISO 800)

Think about lying on your back as a child watching clouds drifting past. This is the nighttime equivalent. The stars etch a trail on the film as they follow their course through the night.  The different temperatures of stars show as different colors, the cooler stars glow a warm orange, the hottest stars are a bright blue.