Exoplanet CatalogExoplanet Kepler-309 c
Radius2.51 R⊕Earth = 1
Mass6.8 M⊕Earth = 1
Orbital period105.36 d
Equilibrium temp.204 K≈ -69 °C
Distance1,776.1 ly
Discovered2014Transit
Size compared (radius, Earth = 1)
1.00
2.51
3.88
11.21
Where it sits among all planets (percentile)
42%
40%
84%
6%
62%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of Kepler-309 (2)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| Kepler-309 b | 5.92 | 1.56 | 3.0 | 531 | 2014 |
| Kepler-309 c | 105.36 | 2.51 | 6.8 | 204 | 2014 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| Kepler-309 | M0 V | 4,713 | 0.72 | 0.82 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.