HAT-P-31 b
A confirmed exoplanet orbiting HAT-P-31.
Compared with Earth
- Size
- About 12 times Earth's width.
- Mass
- About 721 times Earth's mass.
- Year
- A year here lasts about 5 Earth days.
Planet
- Radius
- 12.22 × Earth
- Mass
- 721.5 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 5.005 days
- Average distance from its star
- Unknown
Star
- Host star
- HAT-P-31
- Spectral class
- F — yellow-white
- Surface temperature
- 6,065 K
- Radius
- 1.39 × Sun
- Mass
- 1.31 × Sun
- Age
- Unknown
System
- Distance from Earth
- 1,122 light-years (344.1 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2011
- Method
- Transit
- Facility
- HATNet
Data from the NASA Exoplanet Archive, synced October 14, 2026.