K2-398 c
A confirmed exoplanet orbiting K2-398.
Compared with Earth
- Size
- About 5.1 times Earth's width.
- Year
- A year here lasts about 19 Earth days.
Planet
- Radius
- 5.098 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 18.79 days
- Average distance from its star
- Unknown
Star
- Host star
- K2-398
- Spectral class
- G — sun-like
- Surface temperature
- 5,946 K
- Radius
- 1.239 × Sun
- Mass
- 0.945 × Sun
- Age
- Unknown
System
- Distance from Earth
- 1,980 light-years (607 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2022
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.