HD 66428 b
HD 66428 b is a long-period jovian exoplanet located approximately 179.3 light-years away in the constellation of Monoceros. It has a mass of >2.82 MJ and takes 1973 days or 5.402 years to orbit around its solar-type star HD 66428. The average distance is 3.18 AU, about half the distance between Mars and Jupiter. This planet is a so-called eccentric Jupiter with an orbital eccentricity of 0.465. At periastron, the distance is 1.70 AU and at apastron, the distance is 4.66 AU.[1]
| Discovery | |
|---|---|
| Discovered by | Butler et al.[1] |
| Discovery site |  |
| Discovery date | July 15, 2006 |
| Radial velocity | |
| Orbital characteristics | |
| 3.471±0.069 AU | |
| Eccentricity | 0.440±0.013[2] |
| 2293.9±6.4[2] d | |
| 2452278±16[2] | |
| 180.4±2.6[2] | |
| Semi-amplitude | 52.6±1.1[2] |
| Star | HD 66428 |
See also
References
- 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.
- Feng, Y. Katherina; et al. (2015). "The California Planet Survey IV: A Planet Orbiting the Giant Star HD 145934 and Updates to Seven Systems with Long-period Planets". The Astrophysical Journal. 800. 22. arXiv:1501.00633. Bibcode:2015ApJ...800...22F. doi:10.1088/0004-637X/800/1/22.
External links
- "Notes for planet HD 66428 b". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-20.
- "HD 66428". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-08-20.
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