Llano de Chajnantor Observatory

Photo of observatory surroundings. Credit European Southern Observatory (ESO).
Organization	Multi-national
Location	Atacama desert, Chile
Coordinates	23°01′9.42″S, 67°45′11.44″W
Altitude	5,104 m
Weather	365 clear nights/year
Webpage	Llano de Chajnantor observatory
Telescopes:	Cosmic Background Imager (CBI) Atacama Pathfinder Experiment (APEX) The European Southern Observatory (ESO) is an international astronomical organisation, composed and supported by ten countries from the European Union plus Switzerland and was created in 1962. ... The Atacama desert of Chile is a virtually rainless plateau made up of salt basins (salares), sand, and lava flows, extending from the Andes mountains to the Pacific Ocean. ... The Cosmic Background Imager (or CBI) is a 13-element interferometer perched at an elevation of 5000 metres on the Chajnantor plateau in the Chilean Andes. ... APEX radio telescope The Atacama Pathfinder Experiment (APEX) is a radio telescope located at 5,100 meters above sea level, in the Chanjnantor plateau, in northern Chile, 50 kilometers to the north of San Pedro de Atacama. ... Atacama Large Millimeter Array (ALMA)

Llano de Chajnantor Observatory is an astronomical observatory located at 5104 m altitude in the Chilean Atacama desert, 50 kilometers to the north of San Pedro de Atacama. It is a very dry site - inhospitable to humans - but an excellent site for submillimetre astronomy. Water vapour absorbs and attenuates submillimetre radiation and thus a dry site is required for this type of high-frequency radio astronomy. It hosts some of the largest and most expensive astronomical telescopes in the world, with about 1 billion US dollars already allocated for projects on the site. ALMAs logo The Atacama Large Millimeter Array (ALMA) is an international astronomy project that consists of a system of radio telescopes in an array formation, located in the Atacama desert in northern Chile. ... The Atacama desert of Chile is a virtually rainless plateau made up of salt basins (salares), sand, and lava flows, extending from the Andes mountains to the Pacific Ocean. ... San Pedro de Atacama is a pre-Inca town in northern Chile, and a popular tourist destination. ... Submillimetre Astronomy is the branch of observational astronomy that is conducted at submillimetre wavelengths. ... Boundaries: Phase, Pressure, Temperature Evaporation/Sublimation Whenever a water molecule leaves a surface, it is said to have evaporated. ... Attenuation is the decrease of the amount, force, magnitude, or value of something. ... Microwave image of 3C353 galaxy at 8. ... 50 cm refracting telescope at Nice Observatory. ... The United States dollar is the official currency of the United States. ...

APEX radio telescope

ImageMetadata File history File links Download high resolution version (887x800, 431 KB) Summary Source: http://www. ... ImageMetadata File history File links Download high resolution version (887x800, 431 KB) Summary Source: http://www. ...

Telescopes on the Llano de Chajnantor site

• Cosmic Background Imager (CBI)
• Atacama Pathfinder Experiment (APEX)
• Atacama Large Millimeter Array (ALMA)

The Cosmic Background Imager (or CBI) is a 13-element interferometer perched at an elevation of 5000 metres on the Chajnantor plateau in the Chilean Andes. ... APEX radio telescope The Atacama Pathfinder Experiment (APEX) is a radio telescope located at 5,100 meters above sea level, in the Chanjnantor plateau, in northern Chile, 50 kilometers to the north of San Pedro de Atacama. ... ALMAs logo The Atacama Large Millimeter Array (ALMA) is an international astronomy project that consists of a system of radio telescopes in an array formation, located in the Atacama desert in northern Chile. ...

Telescopes on the adjacent Pampa La Bola site

• ASTE(Atacama Submillimeter Telescope Experiment)
• NANTEN2 Observatory (NANTEN2)

External links

• Llano de Chajnantor discussed on the APEX website