⏰ when
When was the first exoplanet orbiting a Sun-like star discovered?
SpaceExoplanets
Quick Answer
The first confirmed exoplanet around a Sun-like star was announced in 1995. It orbited 51 Pegasi and was discovered by Michel Mayor and Didier Queloz.
The Full Story
The first confirmed exoplanet orbiting a Sun-like star was announced on 6 October 1995. Astronomers Michel Mayor and Didier Queloz discovered 51 Pegasi b using the radial-velocity method at the Observatory of Geneva. The planet was unusual because it was a “hot Jupiter,” orbiting its star in just about 4.2 days. The discovery transformed exoplanet science and helped make the search for planets beyond the Solar System one of astronomy’s biggest fields.
Key Facts
1.Announced on 6 October 1995
2.Host star: 51 Pegasi
3.Orbital period: about 4.2 days
YouTube Angle
Suggested video title for this topic:
"The discovery that proved planets beyond our Solar System were real."