Planetary System
In 1998 an extrasolar planet was discovered to orbit 14 Herculis, which received the designation 14 Herculis b. The planet is located in an eccentric, long-period orbit which takes around 4.8 years to complete. In 2005, a possible second planet was proposed, designated 14 Herculis c. The parameters of this planet are uncertain, but a recent analysis suggests it may lie in the 4:1 resonance with the inner planet, with an orbital period of almost 19 years at an orbital distance of 6.9 AU.
| Companion |
Mass | Semimajor axis |
Orbital period |
Eccentricity | Radius |
|---|---|---|---|---|---|
| b | ≥4.64 ± 0.19 MJ | 2.77 ± 0.05 | 1773.4 ± 2.5 | 0.369 ± 0.005 | — |
| c | ≥2.1 MJ | 6.9 | 6906 ± 70 | 0 (fixed) | — |
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