HD 11964 b
| Discovery | |
|---|---|
| Discovered by | Butler et al. |
| Discovery site | California,  United States |
| Discovery date | 7 August 2005 |
| Detection method | Doppler spectroscopy |
| Orbital characteristics | |
| Semi-major axis | 3.34 ± 0.4 AU (500,000,000 ± 60,000,000 km) |
| Eccentricity | 0.06 ± 0.2 |
| Orbital period (sidereal) | 2110 ± 70 d |
| Time of periastron | 2,454,170 ± 380 |
| Semi-amplitude | 9.41 ± 0.39 |
| Star | HD 11964 |
HD 11964 b is an extrasolar planet, a gas giant like Jupiter approximately 110 light-years away in the constellation of Cetus. The planet orbits the yellow subgiant star HD 11964 in a nearly-circular orbit, taking over 5 years to complete a revolution around the star at a distance of 3.34 astronomical units.
The planet was discovered in 2005 and published as part of the Catalog of Nearby Exoplanets under the designation HD 11964 b. However, since that time there has been confusion as to the designations of the planets in the HD 11964 system, leading to some sources designating this planet as "HD 11964 c". In a recent review of the properties of multi-planet extrasolar planetary systems, the discovery team has stated that the correct designation for this planet is HD 11964 b.
References
- ^ a b c d e f g Wright, J. T.; et al. (2009). "Ten New and Updated Multi-planet Systems, and a Survey of Exoplanetary Systems". The Astrophysical Journal. 693 (2): 1084–1099. arXiv:0812.1582. Bibcode:2009ApJ...693.1084W. doi:10.1088/0004-637X/693/2/1084. S2CID 18169921.
- ^ Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. S2CID 119067572.
- ^ Raghavan, D.; et al. (2006). "Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems". The Astrophysical Journal. 646 (1): 523–542. arXiv:astro-ph/0603836. Bibcode:2006ApJ...646..523R. doi:10.1086/504823. S2CID 5669768. Archived from the original on 2020-04-28. Retrieved 2009-03-16.
- ^ Schneider, J. "Notes for planet HD 11964 c". Extrasolar Planets Encyclopaedia. Retrieved 2008-12-15.
| HD 11964 System | |
|---|---|
| Star | |
| Planets | |
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