Exoplanet CatalogExoplanet Kepler-28 c
Radius1.86 R⊕Earth = 1
Mass2.1 M⊕Earth = 1
Orbital period8.99 d
Equilibrium temp.509 K≈ 236 °C
Distance1,429.7 ly
Discovered2011Transit
Size compared (radius, Earth = 1)
1.00
1.86
3.88
11.21
Where it sits among all planets (percentile)
25%
8%
46%
27%
56%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of Kepler-28 (2)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| Kepler-28 b | 5.91 | 1.96 | 1.6 | 585 | 2011 |
| Kepler-28 c | 8.99 | 1.86 | 2.1 | 509 | 2011 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| Kepler-28 | M0 V | 4,499 | 0.66 | 0.68 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.