Exoplanet CatalogExoplanet Kepler-18 b
Radius2.00 R⊕Earth = 1
Mass6.9 M⊕Earth = 1
Orbital period3.50 d
Equilibrium temp.1,165 K≈ 892 °C
Distance1,412.4 ly
Discovered2011Transit
Size compared (radius, Earth = 1)
1.00
2.00
3.88
11.21
Where it sits among all planets (percentile)
28%
40%
18%
78%
56%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of Kepler-18 (3)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| Kepler-18 b | 3.50 | 2.00 | 6.9 | 1,165 | 2011 |
| Kepler-18 c | 7.64 | 5.49 | 17.3 | 899 | 2011 |
| Kepler-18 d | 14.86 | 6.98 | 16.4 | 720 | 2011 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| Kepler-18 | – | 5,345 | 1.11 | 0.97 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.