) An artist's conception of 79 Ceti b (min mass ~0.26 MJ), an exoplanet with a mass less than Saturn | |
| Discovery[1][2] | |
|---|---|
| Discovered by | California and Carnegie Planet Search |
| Discovery site | W. M. Keck Observatory |
| Discovery date | March 29, 2000 |
Detection method | Doppler spectroscopy |
| Orbital characteristics | |
Semi-major axis | 0.363 ± 0.021 AU (54,300,000 ± 3,100,000 km) |
| Eccentricity | 0.252±0.052 |
| 75.523±0.055 d | |
| 2,450,338.0±3.0 | |
| 42±14 | |
| Semi-amplitude | 11.99±0.87 |
| Star | 79 Ceti |
| Physical characteristics | |
| Mass | >0.260±0.028 MJ |
79 Ceti b (also known as HD 16141 b) is an extrasolar planet orbiting its star every 75 days. With HD 46375 b on March 29, 2000, it was the joint first known extrasolar planet to have minimum mass less than the mass of Saturn.[1][2]
See also
References
- ^ a b "Keck astronomers discover planets smaller than saturn" (Press release). Kamuela, Hawaii: W. M. Keck Observatory. March 29, 2000. Retrieved August 13, 2019.
- ^ a b Marcy, Geoffrey W.; et al. (2000). "Sub-Saturn Planetary Candidates of HD 16141 and HD 46375". The Astrophysical Journal Letters. 536 (1): L43–L46. arXiv:astro-ph/0004326. Bibcode:2000ApJ...536L..43M. doi:10.1086/312723. PMID 10849416.
- Butler, J. T.; 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.
External links