Las Campanas Observatory

    The Las Campanas Observatory is located at a superb site high in the southern reaches of Chile’s Atacama Desert, and was established in 1969 as a home to both 40-inch and 100-inch reflecting telescopes.

    The observatory's newest additions, twin 6.5-meter reflectors, are remarkable members of the latest generation of giant telescopes, enabling scientific breakthroughs across every specialty of astronomy and astrophysics.

    The future of Las Campanas will be shaped by the construction of the Giant Magellan Telescope (GMT), an extremely large telescope that, with seven segmented mirrors, will be 80 feet in diameter.

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    Technical Information

    Discover LCO

    The Las Campanas website offers extensive details about our telescopes, our instruments, and other tools available to astronomers. 

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    Information for Astronomers

    All the details observers need to prepare for their time using our telescopes. 

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