Kepler-309 c
A confirmed exoplanet orbiting Kepler-309.
Compared with Earth
- Size
- About 2.5 times Earth's width.
- Year
- A year here lasts about 105 Earth days.
Planet
- Radius
- 2.51 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 105.4 days
- Average distance from its star
- 0.401 AU
Star
- Host star
- Kepler-309
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,713 K
- Radius
- 0.721 × Sun
- Mass
- Unknown
- Age
- Unknown
System
- Distance from Earth
- 1,776 light-years (544.6 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.