HD 68988 c
HD 68988 c is an exoplanet located approximately 192 light-years away in the constellation of Ursa Major, orbiting the star HD 68988. The parameters including period and eccentricity are highly uncertain. The semimajor axis was initially believed to be 5.32 AU with an orbital period of 4100 ± 7300 days (11 years). The planetary orbit was significantly refined in 2021.
| Discovery | |
|---|---|
| Discovered by | Wright et al. |
| Discovery site | California, US |
| Discovery date | November 2006 |
| Radial velocity | |
| Orbital characteristics | |
| 13.2 AU (1.97×109 km) | |
| Eccentricity | 0.45+0.130 −0.081 |
| 16100+11000 −3500 d | |
Average orbital speed | 14 |
| 2452730 ± 510 | |
| 129 | |
| Semi-amplitude | 60 ± 11 |
| Star | HD 68988 |
| Physical characteristics | |
| Mass | 15.0+2.8 −1.5MJ |
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