File:Background Information- Laser Guide Stars (gemini0504c).tiff

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Background_Information-_Laser_Guide_Stars_(gemini0504c).tiff ‎(679 × 510 pixels, file size: 192 KB, MIME type: image/tiff)

Captions

Captions

At about 50 miles above the Earth’s surface, the yellow/orange laser light encounters a layer of sodium in the upper atmosphere and the light causes the molecules of sodium to glow as seen from the side.

Summary[edit]

Description
English: At about 50 miles above the Earth’s surface, the yellow/orange laser light encounters a layer of sodium in the upper atmosphere and the light causes the molecules of sodium to glow as seen from the side. This artificial guide star allows continuous assessment of how the atmosphere is distorting starlight passing through the column of air that the telescope is observing through.
Date 28 April 2005 (upload date)
Source Background Information: Laser Guide Stars
Author NOIRLab
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current20:50, 27 October 2023Thumbnail for version as of 20:50, 27 October 2023679 × 510 (192 KB)OptimusPrimeBot (talk | contribs)#Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/gemini0504c.tif via Commons:Spacemedia

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