14 Herculis b
The exoplanet 14 Herculis b as rendered by Celestia | |
| Discovery | |
|---|---|
| Discovered by | Naef et al.; Butler et al. |
| Discovery site | Switzerland |
| Discovery date | 6 July 1998 (announced) January 2003 (published) |
| Doppler spectroscopy | |
| Designations | |
| HD 145675 b | |
| Orbital characteristics | |
| 2.845+0.038 −0.039 AU | |
| Eccentricity | 0.371±0.003 |
| 1767.56±0.22 d 4.8393±0.0006 yr | |
| Inclination | 147.3°+2.2° −2.7° |
| 276°±5° | |
| 2,451,368.0±0.5 JD | |
| 22.28°±0.15° | |
| Semi-amplitude | 90.38±0.15 m/s |
| Star | 14 Herculis |
| Physical characteristics | |
| Mass | 8.5+1.0 −0.8 MJ |
14 Herculis b or 14 Her b is an exoplanet approximately 58.4 light-years away in the constellation of Hercules. The planet was found orbiting the star 14 Herculis, with a mass that would make the planet a Jovian planet roughly the same size as Jupiter but much more massive. It was discovered in July 1998 by the Geneva Extrasolar Planet Search team. The discovery was formally published in 2003. At the time of discovery it was the extrasolar planet with the longest orbital period, though longer-period planets have subsequently been discovered.