Celestial lighthouse

Taken: 2012-01-22, 04:03 UT
Place: Paranal Observatory, II Región, Chile
Exposure: 15', ISO-200, f/2.8
Camera: Canon EOS Rebel T3, 16 mm lens.
Comments: The Yepun (UT4) telescope at Paranal observatory strike its laser to the sky, creating an artificial star in order to help the adaptive optics system. The south celestial pole is in the background.


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