Kepler-87 is a star slightly more massive than the Sun and it is nearing the end of its main-sequence period.[2]
Planetary system
Kepler-87 hosts four planets, two confirmed (Kepler-87b,[3] Kepler-87c[4] 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 | — | — |
References
- ^ a b c d Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ "Kepler-87 | NASA Exoplanet Archive". exoplanetarchive.ipac.caltech.edu. Retrieved 10 September 2023.
- ^ "The Extrasolar Planet Encyclopaedia — Kepler-87b". Extrasolar Planets Encyclopaedia. 1995. Retrieved 10 September 2023.
- ^ "The Extrasolar Planet Encyclopaedia — Kepler-87c". Extrasolar Planets Encyclopaedia. 1995. Retrieved 10 September 2023.