HD 187123 b
HD 187123 b is a typical "hot Jupiter" located approximately 150 light-years away in the constellation of Cygnus, orbiting the star HD 187123. It has a mass about half that of Jupiter and it orbits in a very tight, round orbit around the star every three days.[2][3]
| Discovery | |
|---|---|
| Discovered by | Butler, Marcy, Vogt, Apps et al. |
| Discovery site | California, United States |
| Discovery date | 9 September 1998 |
| radial velocity | |
| Orbital characteristics | |
| 0.04213±0.00034 AU | |
| Eccentricity | 0.0093±0.0046[1] |
| 3.0965828±0.0000043[1] d | |
| 2454342.87±0.30[1] | |
| 360±200[1] | |
| Semi-amplitude | 68.91±0.36[1] |
| Star | HD 187123 |
The star has also been monitored for possible transits by the planet, but none was found.
See also
References
- 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 (1). 22. arXiv:1501.00633. Bibcode:2015ApJ...800...22F. doi:10.1088/0004-637X/800/1/22.
- Butler, R. Paul; et al. (1998). "A Planet with a 3.1 Day Period around a Solar Twin". Publications of the Astronomical Society of the Pacific. 110 (754): 1389–1393. Bibcode:1998PASP..110.1389B. doi:10.1086/316287.
- 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. arXiv:0812.1582. Bibcode:2009ApJ...693.1084W. doi:10.1088/0004-637X/693/2/1084.
External links
- "Notes for planet HD 187123 b". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-25.
- "HD 187123". Exoplanets. Archived from the original on 2009-11-24. Retrieved 2008-08-25.
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