Kepler-117 b
A confirmed exoplanet orbiting Kepler-117.
Compared with Earth
- Size
- About 8.1 times Earth's width.
- Mass
- About 30 times Earth's mass.
- Temperature
- About 711 °C (1,312 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 19 Earth days.
Planet
- Radius
- 8.059 × Earth
- Mass
- 29.88 × Earth
- Density
- 0.3 g/cm³
- Equilibrium temperature
- 984 K
- Starlight received
- Unknown
- Orbital period
- 18.8 days
- Average distance from its star
- 0.1445 AU
Star
- Host star
- Kepler-117
- Spectral class
- F — yellow-white
- Surface temperature
- 6,150 K
- Radius
- 1.606 × Sun
- Mass
- 1.129 × Sun
- Age
- 5.3 billion years
System
- Distance from Earth
- 4,747 light-years (1,456 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2014
- Method
- Transit
- Facility
- Kepler
Data from the NASA Exoplanet Archive, synced October 14, 2026.