Leonhard Euler Telescope

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Leonhard Euler Telescope in the foreground on right side, the ESO 3.6 m Telescope is in the distance

Leonhard Euler Telescope, or Swiss 1.2-m Leonhard Euler Telescope, is a 1.2-metre (3.9 ft) diameter aperture reflecting telescope at the Geneva Observatory at La Silla Observatory. It is used for astronomy, and runs the CORALIE echelle spectrograph to search for planets.[1] Its first planet discovery was of one in orbit around Gliese 86.[1] It was determined to be a 4MJ planet with an orbital period of 15.8 earth days.[2] In addition, many other extra solar-system planets were discovered or examined after this discovery.[3]

The observatory is operated by the University of Geneva of Switzerland since the telescopes was finished in 1998.[4] The telescope is named for famous mathematician Leonhard Paul Euler.[5]

The Euler 1.2 and the Mercator Telescope were part of the Southern Sky extrasolar Planet search Programme which has discovered numerous extrasolar planets.[6]

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Coordinates: 29°15′34″S 70°43′59″W﻿ / ﻿29.25956°S 70.73297°W﻿ / -29.25956; -70.73297