Beta Pictoris b
The motion of Beta Pictoris b. The orbital plane is viewed side-on; the planet is not moving towards the star. | |
| Discovery | |
|---|---|
| Discovered by | Lagrange et al. |
| Discovery site | Very Large Telescope |
| Discovery date | November 18, 2008 |
| Direct imaging | |
| Orbital characteristics | |
| 10.03+0.11 −0.10 AU | |
| Eccentricity | 0.1094±0.0077 |
| 23.593+0.248 −0.209 years | |
| Inclination | 88.991°±0.014° |
| 31.773°±0.015° | |
| 2448022.339+15.635 −24.710 | |
| 212.5°+7.2° −6.4° | |
| Semi-amplitude | 79+16 −14 m/s |
| Star | Beta Pictoris |
| Physical characteristics | |
| 1.43±0.07 RJ | |
| Mass | 10.02±0.29 MJ |
| 4.46+0.02 −0.04 cgs | |
| 8.7±0.8 hours | |
Equatorial rotation velocity | 19.9±1.0 km/s |
| Temperature | 1607.45+4.85 −6.20 K (1,334 °C; 2,433 °F) |
Beta Pictoris b (abbreviated as β Pic b) is an exoplanet orbiting the young debris disk, A-type main sequence star, Beta Pictoris located approximately 63 light-years (19.4 parsecs, or 6×1014 km) away from Earth in the constellation of Pictor. It has a mass of around 13 Jupiter masses and a radius that's around 46% larger than Jupiter's. It orbits at 9 AU from Beta Pictoris, which is about 3.5 times farther than the orbit of Beta Pictoris c. It orbits close to the plane of the debris disk orbiting the star, with a low eccentricity and a period of 20–21 years.