| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | Tau1 Gruis | |
| Constellation | Grus | |
| Right ascension | (α) | 22h 53m 37.9315s |
| Declination | (δ) | –48° 35′ 53.828″ |
| Distance | 108.58 ly (33.29 pc) |
|
| Spectral type | G0V | |
| Orbital elements | ||
| Semimajor axis | (a) | 2.561 AU |
| Eccentricity | (e) | 0.0703±0.0781 |
| Orbital period | (P) | 1311 ± 49 d |
| Argument of periastron |
(ω) | 99.8° |
| Time of periastron | (T0) | 2,450,870±210 JD |
| Semi-amplitude | (K) | 19.6±1.5 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 1.26 MJ |
| Discovery information | ||
| Discovery date | 17 September 2002 | |
| Discoverer(s) | Jones, et al.. | |
| Detection method | Doppler spectroscopy | |
| Discovery site | Australia | |
| Discovery status | Confirmed | |
| Other designations | ||
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.