Exoplanet CatalogExoplanet K2-17 b
Radius2.23 R⊕Earth = 1
Mass5.6 M⊕Earth = 1
Orbital period17.97 d
Equilibrium temp.487 K≈ 214 °C
Distance408.0 ly
Discovered2015Transit
Size compared (radius, Earth = 1)
1.00
2.23
3.88
11.21
Where it sits among all planets (percentile)
34%
32%
63%
25%
29%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of K2-17 (1)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| K2-17 b | 17.97 | 2.23 | 5.6 | 487 | 2015 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| K2-17 | K7 | 4,320 | 0.66 | 0.71 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.