NASA / JPL-CALTECH / UCLA / SCIENCE PHOTO LIBRARY NASA / JPL-CALTECH / UCLA / SCIENCE PHOTO LIBRARY
Runaway star bow shock, infrared image. This glowing arc of hydrogen gas and dust is the bow shock formed by the runaway star Alpha Camelopardalis. This star is located around 7000 light years from Earth, in the constellation of Camelopardalis. Its motion relative to its surroundings is thought to be between 680 and 4200 kilometres per second. This image, published in 2011, was obtained by NASA's Wide-field Infrared Survey Explorer (WISE).
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