Astronomy:HD 11964 c
| Discovery | |
|---|---|
| Discovered by | Butler et al. |
| Discovery site | California , United States |
| Discovery date | 5 August 2005 Confirmed 27 May 2007 |
| Doppler spectroscopy | |
| Orbital characteristics | |
| 0.229 AU (34,300,000 km)[1] | |
| Eccentricity | 0.15[1] |
| Orbital period | 37.82[1] d |
| astron|astron|helion}} | 2,454,370 ± 380[1] |
| 102[1] | |
| Semi-amplitude | 4.65 ± 0.59[1] |
| Star | HD 11964 |
HD 11964 c is an extrasolar planet approximately 110 light-years away in the constellation of Cetus. The planet was discovered in a close-orbit around the yellow subgiant star HD 11964. The planet has a minimum mass 35 times the mass of Earth and is located in a mildly eccentric orbit which takes almost 38 days to complete. HD 11964 c was a possible planet discovered on the same day as HD 11964 b in 2005. HD 11964 c was first proposed in a paper published in 2007,[2] and finally confirmed with new data presented in a review of multi-planet systems which appeared on the arXiv preprint website in 2008.[1]
Some sources have used the designation "HD 11964 b" for this planet,[3][4] however in their 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 c and the reversed system was due to confusion related to private communications between various groups of astronomers.[1]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 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. doi:10.1088/0004-637X/693/2/1084. Bibcode: 2009ApJ...693.1084W.
- ↑ Wright, J.T. (2007). "Four New Exoplanets and Hints of Additional Substellar Companions to Exoplanet Host Stars". The Astrophysical Journal 657 (1): 533–545. doi:10.1086/510553. Bibcode: 2007ApJ...657..533W. http://www.iop.org/EJ/article/0004-637X/657/1/533/65907.html.
- ↑ Raghavan, D. (2006). "Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems". The Astrophysical Journal 646 (1): 523–542. doi:10.1086/504823. Bibcode: 2006ApJ...646..523R. http://www.iop.org/EJ/article/0004-637X/646/1/523/64035.html. Retrieved 2009-03-16.
- ↑ Schneider, J.. "Notes for planet HD 11964 b". Extrasolar Planets Encyclopaedia. https://exoplanet.eu/catalog/hd_11964_b--260/. Retrieved 2008-12-15.
Coordinates: 
01h 57m 09.6064s, −10° 14′ 32.739″
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