HD 20782 b
HD 20782 b is an extrasolar planet located approximately 117 light-years away in the constellation of Fornax, orbiting the star HD 20782.
| Discovery | |
|---|---|
| Discovered by | Jones et al. |
| Discovery site | Anglo-Australian Planet Search |
| Discovery date | March 14, 2006 |
| Radial velocity | |
| Orbital characteristics | |
| 1.36 ± 0.12 AU (203,000,000 ± 18,000,000 km) | |
| Eccentricity | 0.97 ± 0.01[1] |
| 585.86 ± 0.03 d | |
| 2451687.1 ± 2.5 | |
| 147 ± 3 | |
| Semi-amplitude | 115 ± 12 |
| Star | HD 20782 |
This planet orbits in the most eccentric orbit known (as of November 2012),[1] with a semi-major axis of 1.36 AU, and eccentricity e=0.97+/-0.01.[2] As a result, it also has one of the most extreme temperature swings.
See also
References
- S. J. O'Toole, C. G. Tinney, H. R. A. Jones, R. P. Butler, G. W. Marcy, B. Carter, J. Bailey (2009). "Selection Functions in Doppler Planet Searches". MNRAS. 392, 641. arXiv:0810.1589. Bibcode:2009MNRAS.392..641O. doi:10.1111/j.1365-2966.2008.14051.x.CS1 maint: uses authors parameter (link)
- Selection Functions in Doppler Planet Searches
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