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]

HD 187123 b
Discovery
Discovered byButler, Marcy,
Vogt, Apps et al.
Discovery siteCalifornia, United States
Discovery date9 September 1998
radial velocity
Orbital characteristics
0.04213±0.00034 AU
Eccentricity0.0093±0.0046[1]
3.0965828±0.0000043[1] d
2454342.87±0.30[1]
360±200[1]
Semi-amplitude68.91±0.36[1]
StarHD 187123

    The star has also been monitored for possible transits by the planet, but none was found.

    See also

    References
    1. 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.
    2. 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.
    3. 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.


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