Didier Patrick Queloz (French pronunciation: [didje kəlo, kelo]; born 23 February 1966) is a Swiss astronomer. He is the Jacksonian Professor of Natural Philosophy at the University of Cambridge, where he is also a fellow of Trinity College, Cambridge, as well as a professor at the University of Geneva. Together with Michel Mayor in 1995, he discovered 51 Pegasi b, the first extrasolar planet orbiting a Sun-like star, 51 Pegasi. For this discovery, he shared the 2019 Nobel Prize in Physics with Mayor and Jim Peebles.
https://en.wikipedia.org/wiki/Didier_Queloz