HD 82943 b is an extrasolar planet approximately 89 light-years away in the constellation of Hydra. The planet was announced in 2000 by the Geneva Extrasolar Planet Search Team.[1] The planet is the outermost planet of two.[2]
| Discovery | |
|---|---|
| Discovered by | Mayor, Udry et al. |
| Discovery site | |
| Discovery date | April 15, 2000[1] |
Detection method | Doppler spectroscopy |
| Orbital characteristics | |
Semi-major axis | 1.19 AU (178,000,000 km) |
| Eccentricity | 0.219 |
Orbital period (sidereal) | 441.2 d |
Time of periastron | 1373.1 |
Argument of periastron | 284 |
| Semi-amplitude | 59.3 ± 5.2 |
| Star | HD 82943 |