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The Gran Telescopio Canarias (GranTeCan or GTC) is a 10.4 m (410 in) reflecting telescope located at the Roque de los Muchachos Observatory on the island of La Palma, in the Canary Islands, Spain. It is the world's largest single-aperture optical telescope. [1] Construction of the telescope took seven years and cost €130 million.
The site also has some of the most extensive astronomical facilities in the Northern Hemisphere; its fleet of telescopes includes the 10.4 m Gran Telescopio Canarias, the world's largest single-aperture optical telescope as of July 2009, [1] the William Herschel Telescope (second largest in Europe), and the adaptive optics corrected Swedish 1-m ...
Gran Telescopio Canarias (GTC) 10.4 m (409 in) Segmented 36 hexagonal segments: Spain, Mexico, USA: Roque de los Muchachos Obs., Canary Islands, Spain: 2006 Hobby–Eberly Telescope (HET) 10 m (394 in) (effective) [3] Segmented 91 × 1 m (39 in) hexagonal segments forming an 11 m × 9.8 m mirror: USA, Germany: McDonald Observatory, Texas, USA: 1997
Gran Telescopio Canarias (GTC) 10.4 m: 409" Reflector – Segmented, 36: World's largest 2009: ORM, La Palma, Canary Islands, Spain: 2009 Large Binocular Telescope (LBT) 8.4 m x 2 (22.8 m LBTI) [5] 464.5" glass mirror reflector – Multi-mirror (2) World's largest 2008 with Beam Combiner: Mount Graham International Observatory, Arizona, USA ...
This is a list of large optical telescopes.For telescopes larger than 3 meters in aperture see List of largest optical reflecting telescopes.This list combines large or expensive reflecting telescopes from any era, as what constitutes famous reflector has changed over time.
However, visible spectroscopy obtained with the Gran Telescopio Canarias shows that it is an asteroid. [5] The closest approach to Earth in 2023 was 23 March 2023 at roughly 0.00369 au (343,000 mi) when it had a relative velocity of 1.46 km/s (3,300 mph).
The project is run by an international consortium of universities and other research institutes, including the University of Warwick, Monash University, the University of Sheffield, the University of Leicester, Armagh Observatory, the National Astronomical Research Institute of Thailand, the Instituto de Astrofísica de Canarias, the University ...
Actuators of the active optics of the Gran Telescopio Canarias. Active optics is a technology used with reflecting telescopes developed in the 1980s, [1] which actively shapes a telescope's mirrors to prevent deformation due to external influences such as wind, temperature, and mechanical stress. Without active optics, the construction of 8 ...
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