51 Pegasi b
Astronomical discovery
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51 Pegasi b, officially named Dimidium, is an extrasolar planet approximately 50 light-years away in the constellation of Pegasus. It was the first exoplanet to be discovered orbiting a main-sequence star, the Sun-like 51 Pegasi, and marked a... Wikipedia
Discovered: October 6, 1995
Radius: 84,404 mi
Discoverers: Didier Queloz, Michel Mayor, and Geoffrey Marcy
Orbits: 51 Pegasi
Discovery site: Haute-Provence Observatory
Distance to Earth: 50 light years
Location: constellation Pegasus