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Polishing of a telescope mirror for use in the MMT

Polishing of a telescope mirror for use in the MMT

R110/0243

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Credit

DAVID PARKER / SCIENCE PHOTO LIBRARY DAVID PARKER / SCIENCE PHOTO LIBRARY

Caption

Mirror manufacture. Manufacture of the mirror destined for use in the Multiple Mirror Telescope (MMT) Conversion project. The technician is plac- ing a fluid on the mirror's surface & a polishing machine is at upper right. This 6.5 metre mirror is intended to replace six 1.8-metre mirrors in the MMT, as the 6 mirrors combined give the MMT an effective aperture of only 4.5 metres. The MMT's building and partially-modified mount will be re- used, allowing it to be converted at a fraction of the cost of an entirely new telescope. This con- version is possible because of advances in mirror fabrication by the University of Arizona Mirror Laboratory in Tucson, USA. Photographed in 1997.

Release details

Model release not available. Property release not required.

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