HD 222582 b

HD 222582 b is an extrasolar planet that is 8.37 times the mass of Jupiter orbiting the star HD 222582. The orbital period is 572 days and orbits at a semimajor axis of 1.35 AU in one of the most eccentric orbits of any known planets.[2]

HD 222582 b

Discovery[1][2]
Discovered by	California and Carnegie Planet Search
Discovery site	W. M. Keck Observatory
Discovery date	November 1, 1999
Detection method	Doppler spectroscopy
Orbital characteristics
Semi-major axis	1.35 AU (202,000,000 km)
Eccentricity	0.76
Orbital period	572 d
Time of periastron	2,450,174.8
Argument of periastron	293
Semi-amplitude	276.6
Star	HD 222582
Physical characteristics
Mean radius	1.12 [3] RJ Estimate
Mass	8.37 [4] MJ

See also

• Gas giant

References

1. "Astronomers discover six new planets orbiting nearby stars" (Press release). Kamuela, Hawaii: W. M. Keck Observatory. November 1, 1999. Retrieved December 19, 2017.
2. Vogt, Steven S.; et al. (2000). "Six New Planets from the Keck Precision Velocity Survey". The Astrophysical Journal. 536 (2): 902–914. arXiv:astro-ph/9911506. Bibcode:2000ApJ...536..902V. doi:10.1086/308981.
3. https://exoplanets.nasa.gov/exoplanet-catalog/6845/hd-222582-b/
4. https://exoplanets.nasa.gov/exoplanet-catalog/6845/hd-222582-b/

• Gimenez; A. (2000). "uvby Photometry of stars with planets". Astronomy and Astrophysics. 356: 213. Bibcode:2000A&A...356..213G.
• Han; Black, David C.; Gatewood, George (2001). "Preliminary astrometric masses for proposed exrasolar planetary companions". The Astrophysical Journal Letters. 548 (1): L57–L60. Bibcode:2001ApJ...548L..57H. doi:10.1086/318927.

External links

• "Notes for planet HD 222582 b". The Extrasolar Planets Encyclopaedia.
• "HD 222582". Exoplanets. Archived from the original on 2010-03-17. Retrieved 2008-09-10. Simulation
• "Location". planetquest1.jpl.nasa.gov. Archived from the original on 2011-07-26.
• "Curve". exoplanets.org. Archived from the original on 2010-06-11.
• "Notes for planet HD 222582 b". www.astrocosmos.net. Archived from the original on 2012-12-09.