Exoplanet CatalogExoplanet K2-189 b
Radius1.40 R⊕Earth = 1
Mass2.6 M⊕Earth = 1
Orbital period2.59 d
Equilibrium temp.1,203 K≈ 930 °C
Distance789.7 ly
Discovered2018Transit
Size compared (radius, Earth = 1)
1.00
1.40
3.88
11.21
Where it sits among all planets (percentile)
13%
12%
11%
80%
41%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of K2-189 (2)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| K2-189 b | 2.59 | 1.40 | 2.6 | 1,203 | 2018 |
| K2-189 c | 6.68 | 2.31 | 6.0 | 877 | 2018 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| K2-189 | – | 5,442 | 0.88 | 0.85 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.