Checking the mirror for Large Binocular Telescope

Checking the mirror for Large Binocular Telescope

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



Caption: LBT mirror. Researcher Roger Angel with the mirror for the Large Binocular Telescope (LBT). This 8.4- metre telescope mirror is the largest ever cast. The mirror's borosilicate glass has a honeycomb design which makes it strong but light. It was cast by a process of melting, moulding & spinning in a rotating oven. The mirror is then finely polished. Two identical mirrors will be placed on a common mount in the LBT constructed on Mount Graham in Arizona, USA. Together they will have the light-collecting power and image sharpness of a much larger single mirror. Roger Angel is director of the University of Arizona Mirror Laboratory in Tucson, USA. Photographed in 1997.

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Keywords: angel, astronomy, astrophysics, honeycomb structure, large binocular tel, large binocular telescope, lbt mirror, lbt telescope, manufac., mirror, mirror manufacture, mount graham, of telescope, optical telescope, roger, telescope, with lbt mirror

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