K2-140 b
A confirmed exoplanet orbiting K2-140.
Compared with Earth
- Size
- About 14 times Earth's width.
- Mass
- About 296 times Earth's mass.
- Temperature
- About 689 °C (1,272 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 204 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 6.6 Earth days.
Planet
- Radius
- 13.56 × Earth
- Mass
- 295.6 × Earth
- Density
- 0.66 g/cm³
- Equilibrium temperature
- 962 K
- Starlight received
- 204 × Earth
- Orbital period
- 6.569 days
- Average distance from its star
- 0.068 AU
Star
- Host star
- K2-140
- Spectral class
- G — sun-like
- Surface temperature
- 5,585 K
- Radius
- 1.06 × Sun
- Mass
- 0.96 × Sun
- Age
- 9.8 billion years
System
- Distance from Earth
- 1,135 light-years (347.9 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2017
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.