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K2-18 b
Orbiting K2-18, discovered in 2015 (7520) by K2 via the Transit method.
Planet
| Radius | 2.37 R⊕ |
| Mass | 8.92 M⊕ |
| Orbital period | 32.94 Earth days (~0.1 Earth years) |
| Orbital eccentricity | 0.200 |
| Equilibrium temperature | 284 K (11 °C) |
Host star — K2-18
| Temperature | 3457 K (3184 °C) |
| Radius | 0.41 R☉ |
| Mass | 0.36 M☉ |
Location
| Distance from Earth | 38.0 pc (~124 light-years) |
| Right ascension / Declination | 172.5601 / 7.5878 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.