Keck Observatory
LocationUSA (Hawaii)
Year1993
Size10 m mirrors (2)
OperatorCaltech/UC
About Keck Observatory
Two identical telescopes on Mauna Kea at 4,145 m altitude. Each mirror is made of 36 hexagonal segments. The first large segmented mirror telescopes. Can observe galaxies over 13 billion light-years away. The altitude provides exceptional seeing conditions above 40% of the atmosphere.
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