5.49
Apparent Mag50.9
Distance (ly)G4V
Spectral Type5,768
Temperature (K)51 Pegasi was the first Sun-like star confirmed to have an exoplanet. Its discovery in 1995 by Mayor and Queloz earned the 2019 Nobel Prize in Physics.
Stellar Data
Apparent Magnitude5.49
Absolute Magnitude5.65
Distance50.9 light-years
Spectral TypeG4V
Temperature5,768 K
Luminosity1.3 L☉
Radius1.237 R☉
Mass1.11 M☉
Right Ascension22h 57m 27.6s
Declination+20° 46′ 07.8″
ConstellationPegasus
Notable Facts
- 51 Pegasi b (Dimidium) was the first exoplanet found orbiting a Sun-like star
- The discovery earned the 2019 Nobel Prize in Physics
- It is a hot Jupiter orbiting in just 4.23 days