General requests about ESO can also be sent via email to ESO's education and Public Outreach Department.
| Site | Address | Phone | Fax | Coordinates | Travel Info | Phone Book | |
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Headquarters Garching ESO Headquarters, located in Garching, near Munich (Germany), is the scientific, technical and administrative centre of the organisation. |
Karl-Schwarzschild-Str. 2 85748 Garching Germany |
+49 89 32006 0 | +49 89 3202362 | Available | Available | |
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Vitacura The ESO offices in Chile are located in the Vitacura district in Santiago, hosting astronomers, technicians and administrative staff. |
Alonso de Córdova 3107 Vitacura - Santiago Chile |
+56 2 463 30 00 | +56 2 463 31 01 | Available | Available | |
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Guesthouse Santiago The ESO Guesthouse is the official lodge for visiting astronomers and ESO staff travelling between Europe and ESO sites. |
Rey Gustavo Adolfo N° 4634 Las Condes - Santiago Chile |
+56 2 208 42 54 / 207 97 85 | +56 2 228 93 33 | Available | ||
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La Silla Observatory ESO’s La Silla Observatory, 600 km north of Santiago de Chile, is a frontline astronomical facility with medium-sized and small optical telescopes, including the most successful exoplanet hunter, HARPS. |
IV Región Chile |
+56 2 464 41 00 | +56 2 464 41 01 | 29° 15′ 40.2″ S, 70° 43′ 52.8″ W | Available | Available |
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ESO La Serena The ESO Office in La Serena is an administrative point that supports the operation of the La Silla Observatory and serves as connection between La Silla and the rest of the ESO sites in Chile. |
Avenida Panorámica, N° 4461 |
+56 51 272601 | +56 51 21 51 75 | Available | ||
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Paranal Observatory Paranal Observatory, 130 km south of Antofagasta in Chile, is the flagship facility of ESO equipped with an array of four 8.2-metre telescopes, four auxiliary telescopes for interferometry and a survey telescope. |
II Región Chile |
+56 55 43 50 00 | +56 55 43 50 01 | 24° 40' S, 70° 25' W | Available | Available |
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ESO Antofagasta Office The ESO Office in Antofagasta is an administrative point that supports the operation of Paranal Observatory and serves as a connection between Paranal and the rest of the ESO sites in Chile. |
Avenida Balmaceda 2536, of. 504 Antofagasta Chile |
+56 55 26 00 32 | +56 55 26 00 81 | Available | ||
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ALMA El Golf The ALMA El Golf office, located in the Las Condes district in Santiago of Chile, is an administrative point that supports the construction of ALMA. |
Av. El Golf 40, Piso 18 Las Condes - Santiago Chile |
+56 2 467 61 00 | +56 2 467 61 95 | Available | ||
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ALMA Alsacia The ALMA Alsacia office, located in the Las Condes district in Santiago of Chile, is an administrative point that supports the construction of ALMA in coordination with ALMA El Golf. |
Av. Apoquindo N° 3846, Piso 19 Las Condes - Santiago Chile |
+56 2 463 61 07 | +56 2 463 61 04 | Available | ||
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ALMA Operations Support Facility (OSF) The ALMA Operations Support Facility, at an altitude of 2900 metres in the Chilean Andes, will serve as the focal point for the ALMA operations. Antennas are assembled here before being moved to the Array Operations Site at 5000 metres altitude. |
Kilómetro 121 Carretera CH 23 San Pedro de Atacama Chile |
+56 55 44 84 16 | +56 55 44 84 81 | Available | Available | |
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ALMA Array Operations Site (AOS) The ALMA Array Operations Site, at an altitude of 5000 metres in the Chilean Andes, houses the ALMA antennas and the correlator, the fastest data processing system ever used at an astronomical site. |
Chile | 23° 1' 23.5" S, 67° 45' 16.7" W | Available | |||
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APEX Sequitor Base The APEX Sequitor Base, located nearby San Pedro de Atacama in Chile, is the workplace of the astronomers and support staff running APEX, the Atacama Pathfinder Experiment. |
Ayllo de Sequitor, parcela 85 San Pedro de Atacama; II Región Chile |
+56 55 44 82 00 / 44 82 28 | +56 55 44 82 21 | Available | Available | |
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APEX Chajnantor Site APEX, the Atacama Pathfinder Experiment, is a 12-metre diameter antenna observing the Universe at millimetre and submillimetre wavelengths located at an altitude of 5100 metres, on the Chajnantor plateau, in Chile’s Atacama region. |
Chile | +56 55 448299 | 23° 0′ 21″ S, 67° 45′ 32″ W | Available | Available |