HD 114783 b is an exoplanet that has a minimum mass almost exactly that of Jupiter. However, since the true mass is not known, it may be more massive, but not likely much. It orbits the star 20% further than Earth orbits the Sun. The orbit is quite circular.[1][2]
Discovery | |
---|---|
Discovered by | Vogt, Butler, Marcy et al. |
Discovery site | Keck Observatory |
Discovery date | October 15, 2001 |
Detection method | Radial velocity |
Orbital characteristics | |
Apastron | 1.268 AU (189,700,000 km) |
Periastron | 1.070 AU (160,100,000 km) |
Semi-major axis | 1.169 ± 0.068 AU (174,900,000 ± 10,200,000 km) |
Eccentricity | 0.085 ± 0.033 |
Orbital period (sidereal) | 496.9 ± 2.3 d 1.360 y |
Average orbital speed | 25.69 |
Time of periastron | 2,450,840 ±37 |
Argument of periastron | 93 ± 25 |
Semi-amplitude | 30.2±0.75 |
Star | HD 114783 |