A ring of telescopes at ESO's La Silla observation site. La Silla, in the southern part of the Atacama desert, 600 km north of Santiago de Chile, was ESO's first observation site. The telescopes are 2400 metres above sea level, providing excellent observing conditions. ESO operates the 3.6-m telescope, the New Technology Telescope (NTT), and the 2.2-m Max-Planck-ESO telescope at La Silla. La Silla also hosts national telescopes, such as the 1.2-m Swiss Telescope and the 1.5-m Danish Telescope.
Iztok Boncina/ESO
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