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Arecibo Observatory

Arecibo Observatory
Arecibo Observatory Aerial View.jpg
Aerial view of the Observatory
Organisation SRI International, Universities Space Research Association, Metropolitan University, National Science Foundation Edit this on Wikidata
Location(s) Arecibo Edit this on Wikidata, United States of America Edit this on Wikidata
Coordinates 18°20′39″N 66°45′10″W / 18.34417°N 66.75278°W / 18.34417; -66.75278Coordinates: 18°20′39″N 66°45′10″W / 18.34417°N 66.75278°W / 18.34417; -66.75278
Wavelength electromagnetic spectrum: (3 cm to 1 m)
Built 1960–November 1963 (1960–November 1963)
Telescope style spherical reflector
Diameter 305 m (1,000 ft 8 in)
Collecting area 73,000 m2 (790,000 sq ft)
Focal length 435 ft (133 m) (0.435)
Mounting semi-transit telescope: fixed primary with secondary (Gregorian reflector) and a delay-line feed, each of which moves on tracks to point to different parts of the sky.
Website www.naic.edu
National Astronomy and Ionosphere Center
Arecibo Observatory is located in Puerto Rico
Arecibo Observatory
Nearest city Arecibo
Area 118 acres (480,000 m2)
Architect Gordon, William E; Kavanaugh, T.C.
Engineer von Seb, Inc., T.C. Kavanaugh of Praeger-Kavanagh, and Severud-Elstad-Krueger Associates
NRHP Reference # 07000525
Added to NRHP September 23, 2008
Commons page
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The Arecibo Observatory is a radio telescope in the municipality of Arecibo, Puerto Rico. This observatory is operated by SRI International, USRA and UMET, under cooperative agreement with the National Science Foundation (NSF). The observatory is the sole facility of the National Astronomy and Ionosphere Center (NAIC), which refers to the observatory, and the staff that operates it. From its construction in the 1960s until 2011, the observatory was managed by Cornell University.

The observatory's 1,000-foot (305-metre) radio telescope was the largest single-aperture telescope from its completion in 1963 until July 2016 when the Five hundred meter Aperture Spherical Telescope was completed. It is used in three major areas of research: radio astronomy, atmospheric science, and radar astronomy. Scientists who want to use the observatory submit proposals that are evaluated by an independent scientific board.

The observatory has appeared in film and television productions, gaining more recognition in 1999 when it began to collect data for the SETI@home project. It has been listed on the American National Register of Historic Places starting in 2008. It was the featured listing in the National Park Service's weekly list of October 3, 2008. The center was named an IEEE Milestone in 2001. It has a visitor center that is open part-time.


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