An Etymological Dictionary of Astronomy and Astrophysics
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A high plateau site located at an altitude of 5,104 m in the Chilean Atacama desert, about 50 kilometers to the east of San Pedro de Atacama (longitude 67° 46' W, latitude 23° 02' S). It is the site of the → Atacama Large Millimeter Array.

In Kunza, the ancestral language of the people living in the region, Chajnantor or Tchacknatur means "lift-off place." It is the place of platforms for worshipping the Sun, where since immemorial time prayers and wishes lifted off (ESO book Cerca del Cielo).