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Evening at Gemini North
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Evening at Gemini North

June 23, 2010
Evening at Gemini North This image shows the Gemini North Telescope on the evening of April 19th, 2005, during evening twilight. Featured in the foreground of the telescope is the laser guide star (LGS) clean-room (blue box with white door). The Gemini solid-state sodium laser is located in this box and shines up through a network of tubes and relay optics (also visible) where the beam is "launched" by optics located behind the secondary mirror. (Date of Image: 2005)


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