HD 117618

Starbox short
name= HD 117618
epoch=2000
constell= Centaurus
ra=13^h 32^m 25.56^s
dec=-47° 16' 16.91"
spectral= G2V
appmag_v= 7.18
dist_ly= 124.0
dist_pc= 38.02
names = CD-46°8708, HIP 66047

HD 117618 is a yellow dwarf star (spectral type G2 V) 124 light years from Earth in the constellation of Centaurus. It is very similar to our Sun and is only slightly brighter. It is orbited by a recently discovered planet.

HD 117618 b

Planetbox begin
name=HD 117618 bPlanetbox orbit
semimajor=0.176±0.010
eccentricity=0.42±0.17
period=25.827±0.019
ang_dist=7.368
long_peri=254±19
t_peri=2,450,832.2±1.8
semi-amp=12.8±2.2Planetbox character
mass=>0.178±0.021Planetbox discovery
discovery_date=2004
discovery_method=Radial velocity
discoverers=C.G. Tinney, Butler,
Marcy et al.
discovery_status=Published

HD 117618 b is a planet discovered orbiting the star in 2004. The planet is a small gas giant with a fifth the mass of Jupiter. It orbits close to its star in a very eccentric orbit.

References

*cite journal | url=http://www.journals.uchicago.edu/doi/full/10.1086/428661 | author=Tinney "et al." | title=Three Low-Mass Planets from the Anglo-Australian Planet Search | journal=The Astrophysical Journal | volume=623 | issue=2 | year=2005 | pages=1171 – 1179 | doi=10.1086/428661
*cite journal | doi= 10.1086/504701 | author=Butler "et al." | title=Catalog of Nearby Exoplanets | journal=The Astrophysical Journal | volume=646 | issue=1 | pages=505 – 522 | year=2006 ( [http://xxx.lanl.gov/abs/astro-ph/0607493 web Preprint] )

External links

* [http://simbad.u-strasbg.fr/sim-fid.pl SIMBAD] [http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HD+117618 entry]
* [http://www.obspm.fr/encycl/encycl.html The Extrasolar Planets Encyclopaedia] [http://www.obspm.fr/encycl/HD117618.html entry]
* [http://www.extrasolar.net Extrasolar Visions] [http://www.extrasolar.net/planettour.asp?StarCatId=&PlanetId=273 entry]
* [http://exoplanets.org California & Carnegie Planet Search] [http://exoplanets.org/esp/hd117618/hd117618.shtml entry]