Discovery[1][2] | |
---|---|
Discovered by | California and Carnegie Planet Search |
Discovery site | W. M. Keck Observatory |
Discovery date | November 1, 1999 |
Doppler spectroscopy | |
Orbital characteristics | |
1.35 AU (202,000,000 km) | |
Eccentricity | 0.76 |
572 d | |
2,450,174.8 | |
293 | |
Semi-amplitude | 276.6 |
Star | HD 222582 |
Physical characteristics | |
1.12 [3] RJ Estimate | |
Mass | 8.37 [4] MJ |
HD 222582 b is an extrasolar planet that is 8.37 times the mass of Jupiter orbiting the star HD 222582. The orbital period is 572 days and orbits at a semimajor axis of 1.35 AU in one of the most eccentric orbits of the known planets.[2]