HD 117207 b
HD 117207 b is an extrasolar planet orbiting at 3.79 astronomical units taking about 2597 days to complete its orbit around HD 117207. Its orbit is moderate in eccentricity. This planet was announced in January 2005 by Marcy in Keck Observatory. The planet has at least 1.88 Jupiter masses.[1][2]
| Discovery | |
|---|---|
| Discovered by | Marcy et al. |
| Discovery site | Keck Observatory |
| Discovery date | 25 January 2005 |
| radial velocity | |
| Orbital characteristics | |
| Apastron | 4.34 AU (649,000,000 km) |
| Periastron | 3.24 AU (485,000,000 km) |
| 3.79 AU (567,000,000 km) | |
| Eccentricity | 0.144±0.035 |
| 2597±41 d 7.110 y | |
Average orbital speed | 15.9 |
| 2450666.43±148.89 | |
| 81.7±19.9 | |
| Semi-amplitude | 26.6±0.93 |
| Star | HD 117207 |
References
- Marcy, Geoffrey W.; et al. (2005). "Five New Extrasolar Planets". The Astrophysical Journal. 619 (1): 570–584. Bibcode:2005ApJ...619..570M. CiteSeerX 10.1.1.516.6667. doi:10.1086/426384.
- 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.
External links
- "HD 117207". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-10-31.
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