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Old 06-13-2011, 01:39 AM
dtilque dtilque is offline
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Join Date: Jan 2000
Location: My own private Nogero
Posts: 5,423
glass zombies want ...... paaaaanes!

Some people above cite 10 meter telescope mirrors. I believe all such are segmented, usually with 36 segments making up the entire mirror.

AFAIK, the 8 meter mirrors that Francis Vaughan mentions are the largest single-piece telescope mirrors around.
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