Background Information: Laser Guide Stars
From the perspective of the telescope, this glow appears as a relatively dim star, bright enough to provide a reference or guide star. 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.
Credit:NOIRLab
About the Image
Id: | gemini0504d |
Type: | Artwork |
Release date: | April 28, 2005, 8 p.m. |
Related releases: | gemini0504 |
Size: | 794 x 595 px |
About the Object
Category: | Illustrations |