Exoplanet CatalogExoplanet Kepler-391 c
Radius2.88 R⊕Earth = 1
Mass450.0 M⊕Earth = 1
Orbital period20.50 d
Equilibrium temp.662 K≈ 389 °C
Distance2,835.1 ly
Discovered2014Transit
Size compared (radius, Earth = 1)
1.00
2.88
3.88
11.21
Where it sits among all planets (percentile)
50%
83%
66%
41%
78%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of Kepler-391 (2)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| Kepler-391 b | 7.42 | 2.50 | 1,100.0 | 930 | 2014 |
| Kepler-391 c | 20.50 | 2.88 | 450.0 | 662 | 2014 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| Kepler-391 | K2 III-IV | 5,038 | 2.88 | 1.27 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.