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Kepler-9 c
Orbiting Kepler-9, discovered in 2010 (7515) by Kepler via the Transit method.
Planet
| Radius | 8.08 R⊕ |
| Mass | 29.90 M⊕ |
| Orbital period | 38.99 Earth days (~0.1 Earth years) |
| Orbital eccentricity | 0.067 |
| Equilibrium temperature | Unknown |
Host star — Kepler-9
| Temperature | 5774 K (5501 °C) |
| Radius | 0.96 R☉ |
| Mass | 1.02 M☉ |
Location
| Distance from Earth | 628.3 pc (~2049 light-years) |
| Right ascension / Declination | 285.5740 / 38.4008 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.