Kepler-87 c
A confirmed exoplanet orbiting Kepler-87.
Compared with Earth
- Size
- About 6.1 times Earth's width.
- Mass
- About 6.4 times Earth's mass.
- Temperature
- About 130 °C (266 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 191 Earth days.
Planet
- Radius
- 6.14 × Earth
- Mass
- 6.4 × Earth
- Density
- 0.152 g/cm³
- Equilibrium temperature
- 403 K
- Starlight received
- Unknown
- Orbital period
- 191.2 days
- Average distance from its star
- 0.676 AU
Star
- Host star
- Kepler-87
- Spectral class
- G — sun-like
- Surface temperature
- 5,600 K
- Radius
- 1.82 × Sun
- Mass
- 1.1 × Sun
- Age
- 7.5 billion years
System
- Distance from Earth
- 4,021 light-years (1,233 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2013
- Method
- Transit
- Facility
- Kepler
Data from the NASA Exoplanet Archive, synced October 14, 2026.