Exoplanet CatalogExoplanet K2-398 c
Radius5.10 R⊕Earth = 1
Mass22.8 M⊕Earth = 1
Orbital period18.79 d
Equilibrium temp.–
Distance1,979.7 ly
Discovered2022Transit
Size compared (radius, Earth = 1)
1.00
3.88
5.10
11.21
Where it sits among all planets (percentile)
65%
63%
64%
65%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of K2-398 (2)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| K2-398 b | 6.39 | 2.27 | 5.8 | – | 2022 |
| K2-398 c | 18.79 | 5.10 | 22.8 | – | 2022 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| K2-398 | G2 | 5,946 | 1.24 | 0.94 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.