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Who discovered 51 Pegasi b in 1995?
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Extrasolar planet
Artist's conception of the extrasolar planet HD 209458b, some 150 light-years from Earth.
The extrasolar planet 51 Pegasi b was discovered in 1995 by Swiss astronomers Michel Mayor and Didier Queloz.12
The pair detected the planet using the radial velocity method, observing the wobble induced by the planet's gravity on its parent star, 51 Pegasi. For this groundbreaking discovery—which marked the first confirmed detection of a planet orbiting a sunlike star—Mayor and Queloz were awarded the 2019 Nobel Prize for Physics.134