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HD 222582

HD 222582 is a magnitude 7.7 star approximately 137 light-years away in the constellation of Aquarius. In 1999, a dense superjovian planet was announced orbiting the star by Steven Vogt. There is a red dwarf companion star in a wide orbit.

The HD 222582 system
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity
b >7.75 MJ 1.35 572 0.76
c (unconfirmed) >0.0513 MJ 0.12 15.144 0.5632


Stellar neighbours

Nearby stars around HD 222582 include: HD 221146 at 12.75 light years, 33 Piscium at 16.35 light years, Gamma Piscium at 23 light years, HD 984 at 25.67 light years, 32 Piscium at 33.5 light years, Alpha Pegasi at 51.1 light years.

See also

* HD 224693
* List of extrasolar planets


References

1. ^ a b c d e van Leeuwen, F. (2007). "HIP 116906". Hipparcos, the New Reduction. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=116516. Retrieved 2009-12-11.

* Vogt et al.; Marcy, Geoffrey W.; Butler, R. Paul; Apps, Kevin (2000). "Six New Planets from the Keck Precision Velocity Survey". The Astrophysical Journal 536 (2): 902–914. doi:10.1086/308981. http://www.iop.org/EJ/article/0004-637X/536/2/902/50799.html.
* Raghavan et al.; Henry, Todd J.; Mason, Brian D.; Subasavage, John P.; Jao, Wei‐Chun; Beaulieu, Thom D.; Hambly, Nigel C. (2006). "Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems". The Astrophysical Journal 646 (1): 523–542. doi:10.1086/504823. http://www.iop.org/EJ/article/0004-637X/646/1/523/64035.html.


External links

* "HD 222582". Extrasolar Visions. http://www.extrasolar.net/planettour.asp?StarCatId=normal&StarId=77.
* "HD 222582 Image". Simbad. http://aladin.u-strasbg.fr/AladinPreview?-c=23+41+51.5299-05+59+08.726&ident=NLTT+57682&submit=Aladin+previewer.

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