51 Pegasi b
CategoryExoplanet
System51 Pegasi
Orbital Period4.23 days
About 51 Pegasi b
The first confirmed exoplanet orbiting a Sun-like star, discovered in 1995. A hot Jupiter about half the mass of Jupiter. Orbits extremely close to its star at 0.05 AU. Surface temperature estimated at 1,000C. Won the Nobel Prize in Physics in 2019 for its discoverers. Revolutionized our understanding of planetary systems.
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