| Discovery | |
|---|---|
| Discovered by | Moutou, Mayor, Bouchy et al. |
| Discovery date | 15 Feb 2005 |
| Radial velocity | |
| Orbital characteristics | |
| 0.1221 ± 0.0071 AU (18,270,000 ± 1,060,000 km) | |
| Eccentricity | 0.049±0.08 |
| 17.991±0.007 d | |
| 2,453,275.46±0.48 | |
| 132.9±9.7 | |
| Semi-amplitude | 58.1±0.5 |
| Star | HD 27894 |
| Physical characteristics | |
| Mass | >0.618±0.088 MJ (>196 ME) |
HD 27894 b is a gas giant with a mass at least two thirds that of Jupiter, or twice that of Saturn. The distance from the planet to the star is one third compared that of Mercury from the Sun, and it takes almost exactly 18 days to complete one roughly circular orbit.[1]