Astronaut Don Pettit shows how to take long-exposure photos from the ISS
A 15-second time exposure image. | Image: Don Pettit
NASA astronaut Don Pettit created his own device to help him take photos of the stars while on the International Space Station — and the results are pretty impressive. In a Reddit thread spotted by Space.com, Pettit describes how he brought a homemade star tracker with him to space, allowing his camera to capture long-exposure photos without the stars leaving any trails behind.
Star trackers are designed to rotate with the Earth ...
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