HD 154345 b

Planetbox begin
name=HD 154345 bPlanetbox image

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caption = HD 154345 b and a possible rocky moon.
"(Artist's impression)"Planetbox orbit
semimajor=4.18
eccentricity=0.036 ± 0.046
period=3322 ± 93
ang_dist=231.5
long_peri=113
t_peri=2,453,230 ± 330
semi-amp=14.28 ± 0.75Planetbox character
mass=>0.963Planetbox discovery
discovery_date=March 12, 2006
(published: May 27, 2007)
discovery_method=radial velocity
discovery_site=United States
discoverers=Wright et al.
discovery_status=publishedPlanetbox catalog
names=GJ 651 b, HIP 83389 b, SAO 46452 b

HD 154345 b, is a Jupiter-sized extrasolar planet orbiting the star HD 154345.

Discovery

Wright et al. discovered the planet in March 2006 using the radial velocity method to detect small wobbling movement in the star caused by the gravity of the planet. The discovery was published in May 2007.

Characteristics

The planet is a gas giant with a mass at least slightly less than that of Jupiter and is likely to be a near twin of Jupiter, estimated to be around the same size, or slightly larger. It may also harbor a system of moons and/or rings. It orbits its parent star at the distance of 4-4.5 AU. Its orbital period is about 9-9.5 Earth years and its orbit is about circular.

References

* [http://arxiv.org/abs/astro-ph/0611658 web preprint]
*

External links

* [http://exoplanet.eu/star.php?st=HD+154345 The Extrasolar Planets Encyclopedia: HD 154345]