K2-198 d
A confirmed exoplanet orbiting K2-198.
Compared with Earth
- Size
- About 2.4 times Earth's width.
- Temperature
- About 670 °C (1,238 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 7.5 Earth days.
Planet
- Radius
- 2.438 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 943.2 K
- Starlight received
- Unknown
- Orbital period
- 7.45 days
- Average distance from its star
- Unknown
Star
- Host star
- K2-198
- Spectral class
- K — orange dwarf
- Surface temperature
- 5,213 K
- Radius
- 0.757 × Sun
- Mass
- 0.799 × Sun
- Age
- Unknown
System
- Distance from Earth
- 360.6 light-years (110.6 parsecs)
- Stars in system
- 1
- Known planets
- 3
Discovery
- Year
- 2019
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.