Cerro Tololo Inter-American Observatory


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Cerro Tololo Inter-American Observatory

(sā`rō tōlō`lō), 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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 located on Cerro Tololo peak, Chile, with offices in La Serena, about 40 mi (64 km) to the west. Funded by the U.S. National Science Foundation (NSF), it is operated by the Association of Universities for Research in Astronomy (AURA), which also operates such other major national observatories as the Kitt Peak National Observatory in Arizona. The principal instrument is a 158-in. (4-m) reflecting telescope, the largest in the Southern Hemisphere and the twin of the 158-in. (4-m) reflector at Kitt Peak. Other equipment of the observatory includes 60-in. (1.5-m), 36-in. (0.9-m), and twin 16-in. (0.4-m) reflectors and the 24-in. (0.6-m) Curtis-Schmidt camera formerly at the Univ. of Michigan. Also at Cerro Tololo, a half mile from the summit, is a 24-in. (0.6-m) reflector belonging to the Lowell Observatory. Additional telescopes are planned for the 1990s, including a 161 in. (4.1-m) telescope from Columbia Univ. and a new 26-ft (8-m) reflector.
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Cerro Tololo Inter–American Observatory

(se -roh toh-loh -loh) (CTIO) A US observatory near La Serena, Chile, at an altitude of 2200 meters. It is run by the Association of Universities for Research in Astronomy (AURA), which operates through the National Optical Astronomical Observatory. Its principal instruments are a 4-meter reflecting telescope, the Victor Blanco Telescope, which began operating in 1976, and two smaller reflectors, one 1.5 meters in aperture and the other 0.9 meter. The 4-meter telescope has a Cer-Vit primary mirror, with Cassegrain (f/8), infrared (f/30), and prime (f/2.7) foci, on an equatorial mounting. The observatory also operates a Schmidt telescope at this site. Nearby Cerro Pachón is the location of the Gemini South telescope (see Gemini telescopes) and the SOAR Telescope.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
References in periodicals archive ?
Millis, director of the Lowell Observatory in Flagstaff, Ariz., and his colleagues discovered 2001 KX76 in images from a survey of the Kuiper belt taken by a 4-meter telescope at Cerro Tololo Inter-American Observatory in La Serena, Chile.
The Southern Hemisphere APASS system is at Cerro Tololo Inter-American Observatory (CTIO) in Chile, where Dan Reichart (University of North Carolina) is loaning us an empty dome and spare Paramount ME.
Wittman of Bell Laboratories in Murray Hill, N.J., and his colleagues examined 145,000 distant galaxies at the Cerro Tololo Inter-American Observatory in La Serena, Chile.
In one instance, this revolution was the outcome of simply providing a dark-skies kit to a teacher in Chile, as part of a well organized effort through the Cerro Tololo Inter-American Observatory to work with schools in regions near astronomical sites.
Suntzeff of the Cerro Tololo Inter-American Observatory in La Serena, Chile, announced the discovery of the supernova--officially designated SN 1999fv--in a Nov.
The three-year search, much of it on foot or horseback, led to the Cerro Tololo Inter-American Observatory, with Stock himself as its first director.
Mendez of the Cerro Tololo Inter-American Observatory near La Serena, Chile, and Dante Minniti of the Pontificia Universidad Catolica de Chile in Santiago analyzed single images of both the Hubble Deep Fields, North and South.
The wide-field image on the facing page, taken with the 4-meter telescope of the Cerro Tololo Inter-American Observatory in Chile, shows the nebula's familiar bright heart, centered on the Trapezium quadruple star so well known to backyard telescope users.
Using a 4-meter telescope at the Cerro Tololo Inter-American Observatory in La Serena, Chile, Polomski and her colleagues have found that since 1997, the amount of mid-infrared radiation emitted by dust surrounding the star has doubled.
The team used the 0.9-meter telescope at the Cerro Tololo Inter-American Observatory in Chile to measure the distances to the red dwarfs using the classic trigonometric parallax method.
Hartmann of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass., used a 4-meter telescope at the Cerro Tololo Inter-American Observatory in La Serena, Chile.
The photo takes me back many years to a night with the 4-meter (157-inch) reflector at the Cerro Tololo Inter-American Observatory in Chile.