Exoplanet CatalogThe Kepler-221 planetary system
Distance (light-years)1,256.5
Spectral type–
Temperature (K)5,243
Mass (Sun = 1)0.85
| Planet | Method | Year | Orbital period (days) | Radius (Earth = 1) | Mass (Earth = 1) | Equilibrium temperature (K) |
|---|---|---|---|---|---|---|
| Kepler-221 b | Transit | 2014 | 2.80 | 1.71 | 6.0 | 1,090 |
| Kepler-221 c | Transit | 2014 | 5.69 | 2.93 | 9.3 | 860 |
| Kepler-221 d | Transit | 2014 | 10.04 | 2.73 | 3.6 | 712 |
| Kepler-221 e | Transit | 2014 | 18.37 | 2.63 | 7.9 | 582 |
Values are the archive’s composite parameters and may combine several publications; mass may be a minimum mass (M·sin i). “–” means no value in the archive.
The star
| Spectral type | Temperature (K) | Radius (Sun = 1) | Mass (Sun = 1) |
|---|---|---|---|
| – | 5,243 | 0.82 | 0.85 |
About this page
Kepler-221 is about 1,256.5 light-years from the Sun and has 4 confirmed planet(s).