MPG / ESO 2.2 m telescope

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Main mirror of the MPG / ESO 2.2 m telescope with the dome open

The MPG / ESO 2.2 m Telescope (English MPG / ESO 2.2 m Telescope ) is a reflector telescope from ESO in Ritchey-Chrétien mount with 2.2 meters aperture and part of the La Silla Observatory in Chile . It was built in 1983 by the Zeiss company and has been in operation since 1984. It is on permanent loan from the Max Planck Institute for Astronomy (MPIA), based in Heidelberg , as part of the Max Planck Society (MPG) to the European Southern Observatory ESO . The observation times at the telescope are divided between MPIA and ESO, while operation and maintenance are the responsibility of the ESO. The telescope is located at an altitude of 2335 m.


The optical and near-infrared telescope is equipped with three instruments:

  • Wide field imager
  • GROND , the Gamma-Ray Burst Optical / Near-Infrared Detector , with which one researches the gamma-ray bursts, probably the most energetic bursts of energy in the entire universe
  • FEROS , a high resolution spectrograph , for detailed star studies

The wide field imager was used to create the Gaia Ecliptic Pole Catalog (GEPC), which was used to calibrate the Gaia mission .


Individual evidence

  1. a b European Southern Observatory . Retrieved November 22, 2010.
  2. ESO - MPG / ESO 2.2 meter telescope . Retrieved June 7, 2011.
  3. European Space Agency and Gaia Data Processing and Analysis Consortium (Ed.): Gaia Data Release 1; Documentation release 1.1 . February 17, 2017, p. 78-87 ( [PDF]).

Coordinates: 29 ° 15 ′ 28.3 ″  S , 70 ° 44 ′ 11.9 ″  W.