K2-222 b
A confirmed exoplanet orbiting K2-222.
Compared with Earth
- Size
- About 2.3 times Earth's width.
- Mass
- About 7.5 times Earth's mass.
- Temperature
- About 530 °C (986 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 15 Earth days.
Planet
- Radius
- 2.275 × Earth
- Mass
- 7.5 × Earth
- Density
- 3.721 g/cm³
- Equilibrium temperature
- 803 K
- Starlight received
- Unknown
- Orbital period
- 15.39 days
- Average distance from its star
- 0.1186 AU
Star
- Host star
- K2-222
- Spectral class
- G — sun-like
- Surface temperature
- 5,942 K
- Radius
- 1.072 × Sun
- Mass
- 0.94 × Sun
- Age
- 7.1 billion years
System
- Distance from Earth
- 330.5 light-years (101.3 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2018
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.