Thread: Mirror casting for the Giant Magellan Telescope (GMT)
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Old 09-01-2018, 05:50 AM
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skysurfer
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Well, seven single 8m mirrors making a 24m composite mirror are much more difficult than 984 1.4m hexagonal segments making a 39m composite main mirror which makes the E-ELT on Cerro Armazones, Chile.
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