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 | |
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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 |