This image may not be used by or to promote the arms, nuclear power or tobacco industries or any religious organisation, or in any discriminatory way,

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This image may not be used by or to promote the arms, nuclear power or tobacco industries or any religious organisation, or in any discriminatory way, or to imply the endorsement by ESO of any product, service or activity Circumhorizontal arc over astronomy site. This rare band of colours forms when the sun is very high in the sky, higher than 58 degrees. A circumhorizontal arc is a very large halo that is always parallel to the ground. This example was photographed in September 2016, over a unit at the Very Large Telescope (VLT) site, operated by the European Southern Observatory (ESO) in Chile.

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Size: 3943px × 2218px
Photo credit: © G. Avila/EUROPEAN SOUTHERN OBSERVATORY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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