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The ESO 3.6 m Telescope is an optical reflecting telescope run by the European Southern Observatory at La Silla Observatory, Chile since 1977, with a clear aperture of about and area. The telescopes uses the HARPS instrument and has discovered more than 130 exoplanets. In 2012, it discovered Alpha Centauri Bb, a possible planet in the Alpha Centauri system only 4.4 light-years away.〔http://www.planetary.org, Bruce Betts, (B. Betts - First Planet Discovered in Alpha Centauri System - TPS ), 18 October 2012〕 It received an overhaul in 1999 and a new secondary in 2004. When completed in the late 1970s, it was one of the world's largest optical telescopes. The ESO 3.6-metre Telescope has supported many scientific achievements and presented ADONIS, one of the first adaptive optics system available to the astronomical community in the 1980s. == Instruments == Since April 2008, the only instrument on the ESO 3.6 m telescope is HARPS, the High Accuracy Radial Velocity Planet Searcher. HARPS is a fibre-fed high resolution echelle spectrograph dedicated to the discovery of extrasolar planets. Other instruments on the telescope, now decommissioned, include:〔(【引用サイトリンク】 The ESO 3.6m Telescope )〕 * CES: is a spectrograph that provides a resolving power of up to 235,000 in the 346–1028 nm region. * EFOSC2: the ''ESO Faint Object Spectrograph and Camera (v.2)'', is a very versatile instrument for low resolution spectroscopy and imaging. * TIMMI-2: the ''Thermal Infrared MultiMode Instrument'' dedicated to the 3-25 µm spectrum. * ADONIS: is the acronym for ''Adaptive Optics Near Infrared System'', and was a second-generation adaptive optics system for the astronomical community.〔 More than 40 peer-reviewed scientific articles were published based on this instrument data.〔 ADONIS is the final version of diverse Adaptive Optics (AO) prototypes named Come-on and Come-on +. It was offered in its final version in October 1996 as an official ESO instrument,〔 then decommissioned in 2001. ADONIS was the first AO system offered to a large community of astronomers. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ESO 3.6 m Telescope」の詳細全文を読む スポンサード リンク
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