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The High Accuracy Radial velocity Planet Searcher, or HARPS for short, is a high-resolution spectrograph installed at the La Silla Observatory in Chile, operated by the European Southern Observatory ESO. Since its first light in 2003, HARPS has found and characterized numerous exoplanets using the radial velocity method, among them Proxima Centauri b, a planet around our nearest neighbour star.
Learn more about HARPS by visiting the instrument overview page and the science operation page by ESO.
For in-depth info about the instrument and its performance, see also the following paper: Mayor et al. (2003).
