Star trails over Noudar Park building. Time-exposure image of stars forming light trails in the sky over a building in Noudar Park, Alqueva Dark Sky R

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Star trails over Noudar Park building. Time-exposure image of stars forming light trails in the sky over a building in Noudar Park, Alqueva Dark Sky Reserve, Portugal. Star trails (here circling the northern celestial pole) are created on long-exposure images by the Earth's rotation on its axis. Photographed in 2016.

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Size: 5472px × 3648px
Photo credit: © MIGUEL CLARO/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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