W. M. Keck Observatory
Astronomical observatory in Hawaii / From Wikipedia, the free encyclopedia
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The W. M. Keck Observatory is an astronomical observatory with two telescopes at an elevation of 4,145 meters (13,600 ft) near the summit of Mauna Kea in the U.S. state of Hawaii. Both telescopes have 10 m (33 ft) aperture primary mirrors, and, when completed in 1993 (Keck I) and 1996 (Keck II), they were the largest optical reflecting telescopes in the world. They are currently the third and fourth largest.
Quick Facts Alternative names, Part of ...
Alternative names | Keck telescope |
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Part of | Mauna Kea Observatories |
Location(s) | Hawaii |
Coordinates | 19°49′35″N 155°28′28″W |
Altitude | 4,145 m (13,599 ft) |
First light | November 24, 1990 (1990-11-24), October 23, 1996 (1996-10-23) |
Telescope style | astronomical observatory reflecting telescope |
Number of telescopes | 2 |
Diameter | 10 m (32 ft 10 in) |
Angular resolution | 0.04 arcsecond, 0.4 arcsecond |
Collecting area | 76 m2 (820 sq ft) |
Focal length | 17.5 m (57 ft 5 in) |
Enclosure | spherical dome |
Website | keckobservatory |
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