Astronauts orbiting Earth at a height of 386 kilometers above ground level have the chance of a unique show. Thanks to photos taken by Don Pettit, a member of the ISS crew, people on Earth are themselves witnesses of these unique landscapes.
Engineer Don Pettit flight exposure technique used for long periods of 10-15 minutes to get images of “star trail” which stars and lights on Earth leaves “traces”. The effect obtained is spectacular, similar to SF movies imagined when intergalactic travel.
Since most modern digital cameras do not allow a statement in May than 30 seconds, astronaut has used 46 images combined them with software, resulting in a longer exposure time.
Pettit is one of the six astronauts living on the International Space Station this time, along with Joe ACAB (NASA), Andre Kuipers (Europe) and cosmonauts Oleg Kononenko, Gennadi Padalka and Sergei back.
Here are some photos taken by Pettit using the same technique: