La Silla Observatory is an astronomical observatory in Chile with three telescopes built and operated by the European Southern Observatory, an intergovernmental research organization made up of 16 ...

Built in 1969 by the ESO, the La Silla observatory is located in the southern Atacama Desert, roughly 600 kilometres north of Santiago, at an altitude of 2,400 meters.

Cretignier identified the exoplanet signal while analyzing archived data from the HARPS spectrograph at the La Silla ...