Astronomy:HD 187123 b
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Short description: Hot Jupiter orbiting HD 187123 in the constellation Cygnus
| 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] |
| Orbital period | 3.0965828±0.0000043[1] d |
| astron|astron|helion}} | 2454342.87±0.30[1] |
| 360±200[1] | |
| Semi-amplitude | 68.91±0.36[1] |
| Star | HD 187123 |
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]
The star has also been monitored for possible transits by the planet, but none was found.
The presence of water has been detected in the atmosphere of HD 187123 b with high confidence.[4]
See also
References
- ↑ 1.0 1.1 1.2 1.3 1.4 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. doi:10.1088/0004-637X/800/1/22. Bibcode: 2015ApJ...800...22F.
- ↑ 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. doi:10.1086/316287. Bibcode: 1998PASP..110.1389B.
- ↑ 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. doi:10.1088/0004-637X/693/2/1084. Bibcode: 2009ApJ...693.1084W.
- ↑ Buzard, Cam et al. (July 2020). "Simulating the Multi-epoch Direct Detection Technique to Isolate the Thermal Emission of the Non-transiting Hot Jupiter HD187123b". The Astronomical Journal 160 (1): 13. doi:10.3847/1538-3881/ab8f9c. 1. Bibcode: 2020AJ....160....1B.
External links
- "Notes for planet HD 187123 b". Extrasolar Planets Encyclopaedia. https://exoplanet.eu/catalog/hd_187123_b--6/. Retrieved 2008-08-25.
- "HD 187123". Exoplanets. http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+187123. Retrieved 2008-08-25.
Coordinates: 
19h 46m 58.1130s, +34° 25′ 10.288″
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