Kepler-129 d
A confirmed exoplanet orbiting Kepler-129.
Compared with Earth
- Mass
- About 2,638 times Earth's mass.
- Year
- A year here lasts about 7.2 Earth years.
Planet
- Radius
- Unknown
- Mass
- 2,638 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 2,646 days
- Average distance from its star
- 4 AU
Star
- Host star
- Kepler-129
- Spectral class
- G — sun-like
- Surface temperature
- 5,770 K
- Radius
- 1.653 × Sun
- Mass
- 1.178 × Sun
- Age
- 6.43 billion years
System
- Distance from Earth
- 1,333 light-years (408.8 parsecs)
- Stars in system
- 1
- Known planets
- 3
Discovery
- Year
- 2021
- Method
- Radial Velocity
- Facility
- W. M. Keck Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.