51 Pegasi b, officially named Dimidium (), is an extrasolar planet approximately 50 light-years (15 parsecs) away in the Pegasus constellation. Dimidium was the first exoplanet to be discovered orbiting a main-sequence star, the Sun-like 51 Pegasi — a major astronomical discovery.
51 Pegasi b, officially named Dimidium (), is an extrasolar planet approximately 50 light-years (15 parsecs) away in the Pegasus constellation. Dimidium was the first exoplanet to be discovered orbiting a main-sequence star, the Sun-like 51 Pegasi — a major astronomical discovery.
Source: Wikipedia "51 Pegasi b" · CC BY-SA 4.0
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