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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.
Relative positions of each unit telescope in a single GOTO system. The UTs are ASA H400 Newtonian telescopes, each with an aperture of 400mm and a focal length of 960mm (f/2.4). [2] Attached to each telescope is a focuser, filter wheel, and a Finger Lakes Instrumentation (FLI) ML50100 camera, [2] based on the Onsemi KAF-50100 CCD sensor. [6]
The observatory began operation around 1984 with the Isaac Newton Telescope, which was moved to La Palma from the Royal Greenwich Observatory site at Herstmonceux Castle in East Sussex, England. The move was troubled, and it is widely recognized that it would have been cheaper to build a new telescope on-site rather than to move an existing one.
A volcano erupted on La Palma, one of Spain’s Canary Islands, on Sunday, September 19, forcing evacuations as lava encroached on the town.The eruption at the Cumbre Vieja volcano was reported ...
The volcanic eruption on La Palma that has sent spectacular rivers of molten lava running down the slopes of La Cumbre for nearly three months is the longest running on the Spanish island since ...
The William Herschel Telescope (WHT) is a 4.20-metre (165 in) optical and near-infrared reflecting telescope located at the Roque de los Muchachos Observatory on the island of La Palma in the Canary Islands, Spain. The telescope, which is named after William Herschel, the discoverer of the planet Uranus, is part of the Isaac Newton Group of ...
Activity continued at the Cumbre Vieja volcano on the Spanish island of La Palma on October 5, more than two weeks after its initial eruption.More than 1,000 buildings and over 400 hectares of ...
The last subaerial eruption in Spain, also on La Palma, was the 1971 Teneguía eruption, which asphyxiated a nearby photographer with its fumes. [20] The eruption also caused some property damage to roads, crops, and homes. [21] The last eruption of any kind in the Canaries was the 2011–2012 eruption of El Hierro, [22] a submarine volcano. [23]