Kepler-87
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Kepler-87 is a star slightly more massive than the Sun and it is nearing the end of its main-sequence period.
Planetary system
Kepler-87 hosts four planets, two confirmed (Kepler-87b, Kepler-87c and two unconfirmed (Kepler-87d, Kepler-87e). It is the farthest system from the Sun with two unconfirmed planet candidates at 4021 light-years.[citation needed]
| Companion (in order from star) | Mass | Semimajor axis (AU) | Orbital period (days) | Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 1.02+0.16 −0.16 MJ | 0.481+0.026 −0.028 | 114.73635+0.00015 −0.00015 | 0.036±0.009 | — | — |
| c | 0.02+0.003 −0.003 MJ | 0.676+0.037 −0.04 | 191.2318+0.0015 −0.0015 | 0.039±0.012 | — | — |
| d (unconfirmed) | — | 0.0628 | 5.83393857±2.241 | 0 | — | — |
| e (unconfirmed) | — | 0.0836 | 8.9772888±0.0001451 | 0 | — | — |