Polishing of mirror for use in Gemini telescope

Polishing of mirror for use in Gemini telescope

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This image is part of the feature 400 Years Of The Telescope
This image is part of the feature New Telescopes

Credit: DAVID PARKER/SCIENCE PHOTO LIBRARY

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Caption: Telescope mirror manufacture. Manufacture of the mirror destined for use in one of the two Gemini telescopes. The polishing machine (white, centre left) uses circular scrubbing patterns to smooth the mirror's surface to within one micrometre. This 8-metre diameter mirror is only 20 centimetres thick. The twin Gemini telescopes, each with a single mirror, are being built at Mauna Kea, Hawaii, and Cerro Pachon, Chile. They will be used for optical and infrared observations. The Mauna Kea telescope is expected to be completed by the end of 1998. Photographed in 1997 at the REOSC workshops in Melun, France.

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Keywords: astronomy, astrophysics, gemini mirror, gemini telescope, hawai'i, hawaii, manufac., mauna kea, mirror, mirror fabrication, mirror manufacture, of telescope, optical telescope, polishin, polishing, reosc workshop, telescope, usa

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