Kepler-31 d
A confirmed exoplanet orbiting Kepler-31.
Compared with Earth
- Size
- About 3.9 times Earth's width.
- Mass
- About 2,161 times Earth's mass.
- Year
- A year here lasts about 88 Earth days.
Planet
- Radius
- 3.9 × Earth
- Mass
- 2,161 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 87.65 days
- Average distance from its star
- 0.4 AU
Star
- Host star
- Kepler-31
- Spectral class
- F — yellow-white
- Surface temperature
- 6,340 K
- Radius
- 1.22 × Sun
- Mass
- 1.21 × Sun
- Age
- Unknown
System
- Distance from Earth
- 5,429 light-years (1,665 parsecs)
- Stars in system
- 1
- Known planets
- 3
Discovery
- Year
- 2014
- Method
- Transit
- Facility
- Kepler
Data from the NASA Exoplanet Archive, synced October 14, 2026.