| Discovery | |
|---|---|
| Discovered by | Robinson et al. |
| Discovery site | California & Carnegie Planet Search |
| Discovery date | January 11, 2007 |
| Detection method | Doppler spectroscopy |
| Orbital characteristics | |
| Semi-major axis | 1.57±0.13 AU |
| Eccentricity | 0.015±0.016 |
| Orbital period (sidereal) | 638.6±1.2 d |
| Time of periastron | 2463066±123 |
| Argument of periastron | 86±69 |
| Semi-amplitude | 31.45±0.82 |
| Star | HD 5319 |
HD 5319 b is a gas giant exoplanet discovered in 2007 in the constellation of Cetus. This planet has a minimum mass nearly two times that of Jupiter. The planet has an almost circular orbit, with an eccentricity of only 0.02 and a period of 641 days. An additional planet in the system was discovered in 2015 and may be in a 4:3 mean motion resonance with planet b.
References
- ^ Robinson, Sarah E.; et al. (2007). "Two Jovian-Mass Planets in Earthlike Orbits". The Astrophysical Journal. 670 (2): 1391–1400. arXiv:0708.0832. Bibcode:2007ApJ...670.1391R. doi:10.1086/522106. S2CID 14454598.
- ^ Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5. S2CID 119243619.
- Giguere, Matthew J.; et al. (2015). "Newly Discovered Planets Orbiting HD 5319, HD 11506, HD 75784 and HD 10442 from the N2K Consortium". The Astrophysical Journal. 799 (1). 89. arXiv:1411.5374. Bibcode:2015ApJ...799...89G. doi:10.1088/0004-637X/799/1/89. S2CID 56121568.
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