HD 168443 b

HD 168443 b
Discovery
Discovered byButler, Marcy et al.
Discovery siteHawaii, United States
Discovery dateSeptember 9, 1998
Doppler spectroscopy
Orbital characteristics
0.29 AU (43,000,000 km)
Eccentricity0.529 ± 0.02
58.116 ± 0.001 d
2,451,616.36 ± 0.02
172.9
Semi-amplitude475.9 ± 1.6
StarHD 168443

HD 168443 b is a planet with a minimum mass seven times as that of Jupiter. Given the high mass, this planet is likely to be a gas giant, or possibly a small brown dwarf depending on the orbital inclination. It orbits closer to its star than Mercury does to the Sun, and its surface temperature is likely to be very high. It was discovered in 1999 using radial velocity measurements taken at the W. M. Keck Observatory in Hawaii.[1]

See also

References

  1. ^ Marcy, Geoffrey W.; et al. (1999). "Two New Planets in Eccentric Orbits". The Astrophysical Journal. 520 (1): 239–247. arXiv:astro-ph/9904275. Bibcode:1999ApJ...520..239M. doi:10.1086/307451. S2CID 16827678.


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