Early hours of April 9th 2011. The International Space Station (ISS) passes over UK skies, not once but twice, in a double flyby. The first flyby at 0308hrs & second just over an hour later at 0439hrs. There was actually a third flyby at 0613hrs but daylight prevented the camera from capturing. Both flybys were captured separately and flattened with software to produce the final composite image. What you are viewing here is the sun's reflection as the ISS passes over. The shorter flyby 1 is down to the ISS being hidden in most part by the Earth's shadow and therefore invisible.
ISSdouble flybystartrailnight time photographystarsplanetsastronomymark humpageOlympus E5