Swedish-ESO Submillimetre Telescope
The Swedish-ESO Submillimetre Telescope (SEST) is a 15-metre diameter radio telescope. It is located at the La Silla Observatory in Chile.
Swedish-ESO Submillimetre Telescope
F. Kerschbaum · CC BY 4.0
- Period
- 1987
- Region
- Chile · Namibia
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The Swedish-ESO Submillimetre Telescope (SEST) is a 15-metre diameter radio telescope. It is located at the La Silla Observatory in Chile.
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wikidata · Q3506473 · wikipedia · Swedish-ESO Submillimetre Telescope
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La Silla Observatory, Chile
La Silla Observatory, Chile
The telescope was built in 1987 as a combined project between ESO and Onsala Space Observatory, with contributions from Finland and Australia. It was then the only large telescope for submillimetre astronomy in the southern hemisphere. It was decommissioned in 2003. The telescope was used for single-dish observations of a wide range of astronomical objects, especially the Galactic Center and the Magellanic Clouds and for interferometric observations at millimetre wavelengths. In 1995 observations made with SEST showed that the Boomerang Nebula is the coldest known location in the universe, with a temperature lower than the background radiation.
Gallery
Gallery
• Illustration — SEST and Orion with his famous belt and sword. • Illustration — SEST dish measures 15 metres across. It was decommissioned in 2003. • Illustration — Sky filled with star trails, a result of the camera's long exposure time. • Illustration — SEST with the ESO 3.6 m Telescope in the background
Chronology
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Explore 1987–2003
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1987
Swedish-ESO Submillimetre Telescope first recorded.
1987
Swedish-ESO Submillimetre Telescope is recorded from 1987.
2003
Swedish-ESO Submillimetre Telescope recorded as ended.
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Swedish-ESO Submillimetre Telescope is associated with Chile and Namibia. Recorded from 1987.
Swedish-ESO Submillimetre Telescope is recorded as
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 16 August 2026.
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