Mauna Kea Observatories

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Mauna Kea Observatories

(mou`nə kā`ə), astronomical observatoryobservatory,
scientific facility especially equipped to detect and record naturally occurring scientific phenomena. Although geological and meteorological observatories exist, the term is generally applied to astronomical observatories.
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 complex located on Mauna Kea peak, the "white mountain" on the island of Hawaii, at an altitude of more than 13,600 ft (4,145 m). Because of its height and excellent seeingseeing,
in astronomy, the clarity with which stars and other celestial objects can be observed. It is primarily determined by the atmosphere of the earth. The most obvious phenomenon is twinkling, when the brightness of a star seems to fluctuate.
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, this site supports by far the largest astronomical facility in the world. It is operated by the Institute for Astronomy of the Univ. of Hawaii. The largest telescopes are the 33-ft (10-m) W. M. Keck telescopes (Keck I and II), each consisting of an array of 36 segmented mirrors; a computer adjusts each small mirror many times per second so that a single image is formed of the object under study. Keck I began observations in 1993, Keck II in 1996. The Subaru telescope, featuring a 327-in. (8.3-m) one-piece mirror, was formerly called the Japanese National Large Telescope. The 320-in. (8.1-m) Gemini telescope is one of an identical pair, the other being constructed atop Chile's Cerro Pachon. Together they will provide complete unobstructed optical and infrared coverage of both the northern and southern skies. Other instruments include the Canada-France-Hawaii telescope (142 in./3.6 m), the United Kingdom Infrared telescope (150 in./3.8 m), and the Infrared Telescope Facility (120 in./3 m), as well as two telescopes—the Caltech Submillimeter Observatory and the James Clerk Maxwell Telescope—used for observations in the submillimeter portion of the electromagnetic spectrum. Also part of the complex is the Hawaii Antenna of the Very Long Baseline Array, which is used for observations in radio astronomyradio astronomy,
study of celestial bodies by means of the electromagnetic radio frequency waves they emit and absorb naturally. Radio Telescopes

Radio waves emanating from celestial bodies are received by specially constructed antennas, called radio telescopes,
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References in periodicals archive ?
Using a telescope known as the Submillimeter Array (SMA), which is located at Mauna Kea Observatory on Mauna Kea Island, Hawai'i, Li and Henning measured specific properties of radiation received from different regions of the galaxy which are correlated with the orientation of these region's magnetic fields.
So does Mauna Kea Observatory Support Services, the facility's manager; its weekend summit tours generally take you past at least one of the mountain's telescopes and are extremely interesting.
The mirror will be finished in 1997 and the completed telescope is scheduled to be operational at the Mauna Kea Observatory in Hawaii before the year 2000.
Gardner of the University of Illinois at Urbana-Champaign conducted experiments at Mauna Kea Observatory to test the feasibility of generating an artificial guide star in the sodium layer.
Mauna Kea Observatory Support Services (MKSS), which manages the mountain, advises that the summit not be visited by children under 16, pregnant women, people with heart or respiratory conditions, or anyone who has gone scuba diving within the previous 24 hours.
23 and 24 from the NASA Infrared Telescope Facility at Mauna Kea Observatory in Hawaii, indicating that Giclas 29-38 is unusually bright at one particular wavelength (3.
VNR features the preparation and experiments at Hawaii's Mauna Kea observatory as well as highlights of the eclipse.
2-meter telescope at the Mauna Kea Observatory to measure and photograph the predicted return flux from the artificial source.