| Discovery | |
|---|---|
| Discovered by | Marmier et al. |
| Discovery site | HARPS |
| Discovery date | Sept. 13, 2011 |
| Detection method | Doppler spectroscopy |
| Orbital characteristics | |
| Semi-major axis | 3.22+0.065 −0.064 AU |
| Eccentricity | 0.163±0.057 |
| Orbital period (sidereal) | 2173+47 −44 d 5.95+0.13 −0.12 yr |
| Inclination | 74°+11° −15° or 106°+15° −11° |
| Longitude of ascending node | 91°+63° −66° |
| Time of periastron | 2456110+158 −147 |
| Argument of periastron | 128°+28° −27° |
| Star | HD 27631 |
| Physical characteristics | |
| Mass | 1.56+0.2 −0.15 MJ |
HD 27631 b is an extrasolar planet that has more mass than Jupiter. It orbits 3.25 AU from the star, taking six years to revolve around the parent star HD 27631. Its orbit is eccentric, around 12%. In 2023, the inclination and true mass of HD 27631 b were determined via astrometry.
References
- ^ Marmier, M.; et al. (2013). "The CORALIE survey for southern extrasolar planets XVII. New and updated long period and massive planets". Astronomy and Astrophysics. 551. A90. arXiv:1211.6444. Bibcode:2013A&A...551A..90M. doi:10.1051/0004-6361/201219639. S2CID 59467665.
- ^ Xiao, Guang-Yao; Liu, Yu-Juan; et al. (March 2023). "The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics. arXiv:2303.12409.
External links
- "HD 27631". Exoplanets. Archived from the original on 2016-11-30. Retrieved 2012-11-29.
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