... (NTT) is an Alt-Az, 3.58m Richey-Chretien telescope which pioneered the use of active optics. Le télescope de 3,6 mètres de l'ESO, géré par l'Observatoire européen austral, est situé à l'observatoire de La Silla au Chili.Il était l'un des plus grands télescopes optiques du monde lors de sa mise en service en 1977, avec un diamètre du miroir primaire de 3,566 m [1].Il a fait l'objet d'une rénovation en 1999. The telescope is at a geographical location of 70°44'4"543 W 29°15'15"433 S and an altitude of 2335 metres. The telescope has an off-axis mount and the optics are of a Ritchey-Chretien design. The telescope and its enclosure had a revolutionary design for optimal image quality. The infrastructure of La Silla is also used by many of the ESO Member States for targeted projects such as the Swiss 1.2-metre Leonhard Euler Telescope, the Rapid Eye Mount telescope (REM) and the TAROT Telescope gamma-ray burst chaser, as well as more common user facilities such as the MPG/ESO 2.2-metre and the Danish 1.54-metre Telescopes. The telescope (which is a fork mounted Ritchey-Chretien) was built by Zeiss and has been in use at La Silla since 1984. HARPS, the High Accuracy Radial velocity Planet Searcher at the ESO La Silla 3.6m telescope is dedicated to the discovery of extrasolar planets. Un nouveau télescope robotisé a obtenu sa première lumière à l'Observatoire de l'ESO à La Silla, au Chili. The Danish telescope was built by Grubb-Parsons, and has been in use at La Silla since 1979. It is a fibre-fed high resolution echelle spectrograph. The 3.58-m New Technology Telescope (NTT) was the first in the world to have a computer-controled mirror. Il fut un succès technique tant sur le plan optique que scientifique. Telescope Overview . Also on La Silla is the ESO 3.6-m telescope, the 2.2-m MPG/ESO Telescope, that is on indefinite loan to ESO from the Max-Planck-Gesellschaft, and the ESO 1-m telescope.. Current Instruments. Les plus importants pour l’ESO sont le télescope de 3,6 m, le New Technology Telescope (NTT, 3,58 m) et le Max-Planck ESO. It operates the La Silla Paranal Observatory in Chile and has its headquarters in Garching, near Munich, Germany. La Silla est ouvert à la visite le samedi sauf en juillet-août. The telescope is at a geographical location of 70.7345W, 29.2584S, and an altitude of 2400 metres above sea level. Le premier, équipé du spectrographe HARPS, a permis de découvrir plusieurs exoplanètes (ou planètes extrasolaires), dont la première potentiellement habitable, appelée Gliese 581d. The ESO 3.6m telescope host the following instrument: HARPS: The High Accuracy Radial velocity Planet Searcher at the ESO La Silla 3.6m telescope is dedicated to the discovery of extrasolar planets. Current Instruments.

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