Polishing of a telescope mirror for use in the MMT

Polishing of a telescope mirror for use in the MMT

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Credit: DAVID PARKER/SCIENCE PHOTO LIBRARY

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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.

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Keywords: astronomy, astrophysics, manufac., mirror, mirror fabrication, mirror making, mirror manufacture, mmt conversion, multiple mirror telescope, of telescope, optical telescope, polishin, polishing, telescope

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