Photos: Exquisite Star Trails Captured by Astronaut Don Pettit

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Colorful Star Trails Seen From the ISS

Credit: Don Pettit
Expedition 31 Flight Engineer Don Pettit took photos of star trails, terrestrial lights, airglow and auroras while aboard the International Space Station.…Read More »

He writes: “My star trail images are made by taking a time exposure of about 10 to 15 minutes. However, with modern digital cameras, 30 seconds is about the longest exposure possible…. To achieve the longer exposures I do what many amateur astronomers do. I take multiple 30-second exposures, then ‘stack’ them using imaging software … " Image taken May 11, 2012.   Less «
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