Part of | Roque de los Muchachos Observatory |
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Location(s) | Spain |
Coordinates | 28°45′36″N 17°52′57″W / 28.75999°N 17.88243°W |
First light | May 1984 |
Decommissioned | 1 September 2013 |
Telescope style | meridian circle optical telescope refracting telescope |
Diameter | 17.8 cm (7.0 in) |
Focal length | 266 cm (8 ft 9 in) |
Website | www |
The Carlsberg Meridian Telescope (formerly the Carlsberg Automatic Meridian Circle) is a decommissioned meridian circle telescope located at the Roque de los Muchachos Observatory in the Canary Islands. It was dedicated to high-precision optical astrometry and operated from May 1984 to September 2013.[1]
The CMT's 20 years of photometric data was studied to understand atmosphere extinction.[2] Up to 2003, 11 catalogs were published and it had been given various upgrades since its installation in 1984.[3]
The telescope is owned by the Danish Copenhagen University Observatory and was jointly operated under an international agreement with the Institute of Astronomy, Cambridge and the Real Instituto y Observatorio de la Armada.[3]