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Not really a rainbow
Sky phenomena are not reserved for the night alone. Despite its deceptive appearance, this light show is not a rainbow, but something more unusual. Here a relatively rare instance of a circumhorizontal arc, caused by particular refraction of light, casts vivid colours in the clouds over the site of ESO's Very Large Telescope (VLT), the world's most advanced visible-light astronomical observatory.
Kilde:ESO/T. Pfrommer
Om billedet
Id: | img_1949-cc |
Type: | Foto |
Udgivelsesdato: | 15. september 2016 14:16 |
Størrelse: | 1600 x 1200 px |
Om objektet
Type: | Unspecified : Sky Phenomenon : Light Phenomenon |
Kategori: | Paranal |