HD 114783

Starbox short
name=HD 114783
epoch=2000
constell=Virgo
ra=13^h 12^m 43.79^s
dec=-2° 15' 54.14"
spectral=K0
appmag_v=7.57
dist_ly=66.60
dist_pc=20.43
names=GJ 3769, BD-01°2784, HIP 64457, SAO 139218

HD 114783 is an 8th magnitude star in the constellation of Virgo. As an orange dwarf it is somewhat dimmer and cooler than our Sun. The spectral type of the star is K0 V. The star is not visible with the unaided eye, but is easy target for binoculars.

In 2001, the California and Carnegie Planet Search team found an extrasolar planet orbiting the star. The discovery was made with the Keck Telescope.

HD 114783 b

Planetbox begin
name=HD 114783 bPlanetbox orbit
semimajor=1.169±0.068
eccentricity=0.085±0.033
period=496.9±2.3
ang_dist=55
long_peri=93±25
t_peri=2,450,840 ±37
semi-amp=30.2±0.75Planetbox character
mass=>1.034±0.089
radius = >1.0 (Estimated)Planetbox discovery
discovery_date=2001
discovery_method=Radial velocity
discoverers=Vogt, Butler,
Marcy et al.
discovery_status=PublishedThe planet, designated as HD 114783 b, has a minimum mass almost exactly that of Jupiter. However, since the true mass is not known, it may be more massive, but not likely much. It orbits the star 20% further than Earth orbits the Sun. The orbit is quite circular. Because the star is less luminous and warm than the Sun, the planet is considerably colder than the Earth.

References

*cite journal | url=http://www.journals.uchicago.edu/doi/full/10.1086/338768 | author=Vogt "et al." | title=Ten Low-Mass Companions from the Keck Precision Velocity Survey | journal=The Astrophysical Journal | volume=568 | issue=1 |year=2002 | pages=352 – 362 | doi=10.1086/338768
*cite journal|url=http://www.journals.uchicago.edu/doi/abs/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 | doi=10.1086/504701 | format=abstract ( [http://xxx.lanl.gov/abs/astro-ph?papernum=0607493 web Preprint] )

External links

* [http://simbad.u-strasbg.fr/Simbad SIMBAD] [http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HD+114783 star entry] , [http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HD+114783+B planet entry]
* [http://www.obspm.fr/encycl/encycl.html The Extrasolar Planets Encyclopaedia] [http://www.obspm.fr/encycl/HD114783.html entry]
* [http://www.extrasolar.net Extrasolar Visions] [http://www.extrasolar.net/planettour.asp?StarCatId=normal&PlanetId=183 entry]