K2-331 c
A confirmed exoplanet orbiting K2-331.
Compared with Earth
- Size
- About 2.7 times Earth's width.
- Temperature
- About 400 °C (752 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 23 Earth days.
Planet
- Radius
- 2.72 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 673 K
- Starlight received
- Unknown
- Orbital period
- 23 days
- Average distance from its star
- Unknown
Star
- Host star
- K2-331
- Spectral class
- G — sun-like
- Surface temperature
- 5,994 K
- Radius
- 1.06 × Sun
- Mass
- 1.1 × Sun
- Age
- Unknown
System
- Distance from Earth
- 689.6 light-years (211.4 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2021
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.