ISS Pass #2 (June 4-5, 2013)

A middle-of-the-night pass of the Space Station, at 1:55 am June 5, 2013, with twilight to the north and a low aurora. This is a stack of 4 x 2.5 minute tracked exposures with the Sigma 8mm lens at f/3.5 and Canon 5D MkII at ISO 1600. The gaps are from 5 second intervals between exposures — should have been 1 second but I messed up the intervalometer settings! The view is looking due north – Polaris is at centre, the Big Dipper at left, Cassiopeia at right