K2-223 b
A confirmed exoplanet orbiting K2-223.
Compared with Earth
- Size
- About 79% of Earth's width.
- Mass
- About 2.8 times Earth's mass.
- Temperature
- About 2,207 °C (4,004 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 12 hours.
Planet
- Radius
- 0.79 × Earth
- Mass
- 2.8 × Earth
- Density
- 31.43 g/cm³
- Equilibrium temperature
- 2,480 K
- Starlight received
- Unknown
- Orbital period
- 0.5056 days
- Average distance from its star
- 0.0135 AU
Star
- Host star
- K2-223
- Spectral class
- G — sun-like
- Surface temperature
- 5,858 K
- Radius
- 1.05 × Sun
- Mass
- 1.07 × Sun
- Age
- 2.8 billion years
System
- Distance from Earth
- 647.8 light-years (198.6 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2018
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.