The comet and the laser

Photograph of the comet tail from Paranal, after the comet itself had set, with the laser guide star system above Yepun (Unit Telescope 4) in the foreground. The laser is used to produce a fake 'star' on the sky to allow the changing atmosphere to be corrected. It works by making sodium atoms high in the atmosphere glow - these atoms may have originally come from comets like McNaught. Photo by Emmanuel Jehin, ESO

Källa:

Emmanuel Jehin/ESO

Om bilden

ID:eso0707d
Typ:Foto
Publiceringsdatum:23 februari 2007
Relaterade pressmeddelanden:eso0707
Storlek:1150 x 1529 px

Om objektet

Namn:Comet McNaught, Very Large Telescope
Typ:Unspecified : Technology : Observatory : Telescope
Solar System : Interplanetary Body : Comet : Tail
Kategori:Paranal
Solar System

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