Exoplanet CatalogExoplanet Kepler-221 b
Radius1.71 R⊕Earth = 1
Mass6.0 M⊕Earth = 1
Orbital period2.80 d
Equilibrium temp.1,090 K≈ 817 °C
Distance1,256.5 ly
Discovered2014Transit
Size compared (radius, Earth = 1)
1.00
1.71
3.88
11.21
Where it sits among all planets (percentile)
22%
34%
12%
75%
52%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of Kepler-221 (4)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| Kepler-221 b | 2.80 | 1.71 | 6.0 | 1,090 | 2014 |
| Kepler-221 c | 5.69 | 2.93 | 9.3 | 860 | 2014 |
| Kepler-221 d | 10.04 | 2.73 | 3.6 | 712 | 2014 |
| Kepler-221 e | 18.37 | 2.63 | 7.9 | 582 | 2014 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| Kepler-221 | – | 5,243 | 0.82 | 0.85 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.