MPG/ESO telescope

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MPG/ESO 2.2-metre Telescope[1]
Organization Max Planck Institute for Astronomy, ESO
Location(s) La Silla Observatory, Chile
Coordinates 29°15′28″S 70°44′12″W / 29.25778°S 70.73667°W / -29.25778; -70.73667
Altitude 2,375 metres (7,792 ft)[1]
Wavelength optical and near-infrared
Built 1983
Telescope style Ritchey–Chrétien (RCT)
Diameter 2,300 millimetres (91 in)[2]
Angular resolution 0.3 arcsec[2]
Collecting area 3.8 m2 (2200 mm free aperture)[2]
Focal length f/8.0[2] (17.6 metre)[3]
Mounting equatorial fork[2]
Dome classical[1]

The MPG/ESO telescope is a 2.2-metre ground-based telescope at the European Southern Observatory (ESO) in La Silla, Chile. It was built by Zeiss and has been operating since 1984. It was on indefinite loan to the European Southern Observatory from the Max Planck Institute for Astronomy (MPIA). In October 2013 it was returned to the MPIA. Telescope time is shared between MPIA and MPE observing programmes, while the operation and maintenance of the telescope are ESO's responsibility.[4]

The telescope hosts three instruments: the 67-million pixel Wide Field Imager[5] with a field of view as large as the full Moon, which has taken many amazing images of celestial objects; GROND, the Gamma-Ray Burst Optical/Near-Infrared Detector, which chases the afterglows of the most powerful explosions in the Universe, known as gamma-ray bursts; and the high-resolution spectrograph, FEROS, used to make detailed studies of stars.[1]

In November 2010 it was used to discover HIP 13044 b, marking the first time a planetary system in a stellar stream of extragalactic origin has been detected.[6]



  1. ^ a b c d "MPG/ESO 2.2-metre telescope". ESO. Retrieved 15 September 2015. 
  2. ^ a b c d e "The ESO/MPI 2.2m Telescope". ESO. 2 June 2014. 
  3. ^ "GROND - a 7-channel imager" (PDF). Retrieved 31 May 2013. 
  4. ^ "European Southern Observatory". ESO. 2 June 2014. 
  5. ^ a b "WFI—Wide Field Imager". ESO. 19 May 2014. 
  6. ^ Bowdler, Neil (18 November 2010). "'Alien' planet detected circling dying star". BBC News. Retrieved 15 September 2015. 
  7. ^ "Diamonds in the Tail of the Scorpion". ESO. Retrieved 12 March 2014. 
  8. ^ "Is it a Bird…?". European Southern Observatory. Retrieved 29 December 2014. 
  9. ^ "The globular cluster NGC 6388 observed by the European Southern Observatory". ESO Press Release. Retrieved 13 February 2013.