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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]
 Part of Roque de los Muchachos Observatory. The Carlsberg Meridian Telescope is housed in the low building on the bottom left. | |
| Part of | Roque de los Muchachos Observatory  |
|---|---|
| Location(s) | Spain |
| Coordinates | 28°45′36″N 17°52′57″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 |
  Location of Carlsberg Meridian Telescope | |
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]
References
- "The Carlsberg Meridian Telescope". www.ast.cam.ac.uk. Retrieved 2019-10-17.
- Garcia-Gil, A.; Munoz-Tunon, C.; Varela, A. M. (September 2010). "Atmosphere Extinction at the ORM on La Palma: A 20 yr Statistical Database Gathered at the Carlsberg Meridian Telescope". Publications of the Astronomical Society of the Pacific. 122 (895): 1109–1121. arXiv:1009.4056. Bibcode:2010PASP..122.1109G. doi:10.1086/656329. ISSN 0004-6280. S2CID 119205634.
- Bélizon, F. & Muiños, J. & Vallejo, M. & Evans, Dafydd & Irwin, M. & Helmer, L.. (2003). First Carlsberg Meridian Telescope (CMT) CCD Catalogue.. -1. 61-68. Link.
See also
- Tokyo Photoelectric Meridian Circle (Another 20th century electronic meridian telescope)
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