| Discovery | |
|---|---|
| Discovered by | Jones, et al. |
| Discovery site | Australia |
| Discovery date | 17 September 2002 |
| Doppler spectroscopy | |
| Orbital characteristics | |
| 2.561 AU (383.1 million km) | |
| Eccentricity | 0.0703 ± 0.0781 |
| 1,311 ± 49 d | |
| 2,450,870 ± 210 | |
| 99.8 | |
| Semi-amplitude | 19.6 ± 1.5 |
| Star | Tau1 Gruis |
Tau1 Gruis b, also known as HD 216435 b, is an extrasolar planet approximately 109 light-years away in the constellation of Grus (the Crane). The planet was discovered orbiting the star Tau1 Gruis in September 2002. It was calculated that the planet orbits its sun at an average distance of 2.7 astronomical units. The planet is over 1.25 times as massive as Jupiter.