 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[1] | |
| 10.018+0.082 −0.076 AU | |
| Eccentricity | 0.106+0.007 −0.006 |
| 23.593+0.248 −0.209 yr | |
| Inclination | 89.009°±0.012° |
| 31.774°+0.008° −0.009° | |
| 2448022.339+15.635 −24.710 | |
| 21.835°+4.099° −4.044° | |
| Semi-amplitude | 78.791+15.672 −14.126 m/s |
| Star | Beta Pictoris |
| Physical characteristics | |
| 1.46±0.01[2][note 1] RJ | |
| Mass | 11.729+2.337 −2.135[1] MJ |
| 8.7±0.8 h[3] | |
Equatorial rotation velocity | 19.9±1.0 km/s[3] |
| Temperature | 1,724 K (1,451 °C; 2,644 °F) ±15 K (15 °C; 27 °F)[2][note 1] |
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 around 13 Jupiter masses and a radius 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.[4] It orbits close to the plane of the debris disk orbiting the star, with a low eccentricity and a period of 20–21 years.
- ^ a b Cite error: The named reference
Feng2022was invoked but never defined (see the help page). - ^ a b Cite error: The named reference
Chilcote2017was invoked but never defined (see the help page). - ^ a b Cite error: The named reference
Landman2024was invoked but never defined (see the help page). - ^ Lagrange, A.-M.; Meunier, Pascal Rubini; Keppler, Miriam; Galland, Franck; et al. (August 19, 2019). "Evidence for an additional planet in the β Pictoris system". Nature Astronomy. 3 (12): 1135–1142. Bibcode:2019NatAs...3.1135L. doi:10.1038/s41550-019-0857-1. S2CID 202126059. Retrieved August 20, 2019.
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