Kepler-20 d
A confirmed exoplanet orbiting Kepler-20.
Compared with Earth
- Size
- About 2.6 times Earth's width.
- Mass
- About 13 times Earth's mass.
- Temperature
- About 157 °C (314 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 5.7 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 78 Earth days.
Planet
- Radius
- 2.606 × Earth
- Mass
- 13.4 × Earth
- Density
- 4.1 g/cm³
- Equilibrium temperature
- 430 K
- Starlight received
- 5.71 × Earth
- Orbital period
- 77.61 days
- Average distance from its star
- 0.3474 AU
Star
- Host star
- Kepler-20
- Spectral class
- G — sun-like
- Surface temperature
- 5,495 K
- Radius
- 0.9164 × Sun
- Mass
- 0.929 × Sun
- Age
- 5.6 billion years
System
- Distance from Earth
- 921.6 light-years (282.6 parsecs)
- Stars in system
- 2
- Known planets
- 6
Discovery
- Year
- 2011
- Method
- Transit
- Facility
- Kepler
Data from the NASA Exoplanet Archive, synced October 14, 2026.