Discovery | |
---|---|
Discovered by | Butler et al.[1] |
Discovery site | United States |
Discovery date | June 30, 2003 |
radial velocity | |
Orbital characteristics | |
1.053 ± 0.061 AU (157,500,000 ± 9,100,000 km)[2] | |
Eccentricity | 0.128 ± 0.022[2] |
394.48 ± 0.60[2] d | |
2,454,045 ± 49[2] | |
219.4 ± 9.4[2] | |
Semi-amplitude | 37.3 ± 1.1[2] |
Star | HD 108874 |
Physical characteristics | |
Mass | >1.34 ± 0.11[2] MJ |
HD 108874 b is a gas giant announced in 2003.[1] The orbit lies in the star's habitable zone.[3] It is expected that any moons orbiting this planet are enriched in carbon, and are thus quite different from the silicate-rich bodies in the Solar System.[4] The planet is possibly in a 4 : 1 orbital resonance with HD 108874 c.[5]
The jovian planet HD 108874 b was discovered by the US-based team led by Paul Butler, Geoffrey Marcy, Steven Vogt, and Debra Fischer. A total of 20 radial velocity observations, obtained at the W. M. Keck Observatory in Hawaii between 1999 and 2002, were used to make the discovery.[1]