HD 101930

Starbox short
name=HD 101930
epoch=2000
constell=Centaurus
ra=11^h 43^m 30.11^s
dec=-58 ° 0' 24.79"
spectral=K1V
appmag_v=8.21
dist_ly=99.42
dist_pc=30.50
names=GJ 3683, CD-57°4096, HIP 57172,
SAO 239322, LTT 4350

HD 101930 is a dim 8th magnitude star in the constellation of Centaurus. It is an orange dwarf (spectral class K1 V), somewhat dimmer and cooler than our Sun.

In 2005 it was announced that a planet orbits the star.

HD 101930 b

Extrasolar Planet
name=HD 101930 b
semimajor=0.302
eccentricity=0.11 ± 0.02
period=70.46 ± 0.18
inclination=?
ang_dist=10
long_peri=251 ± 11
t_peri=2,453,145.0 ± 2.0
semi-amp=18.1 ± 0.4
mass=>0.30
radius=?
density=?
gravity=?
temperature=?
discoverers=Lovis, Mayor,
Pepe et al.
discovery_date=2005

HD 101930 b is an extrasolar planet orbiting the star. It has a minimum mass a third of Jupiter's, nearly the same as Saturn's so it is thought to be a gas giant. It orbits the star closer than Mercury, and the orbit is slightly eccentric.

References

*cite journal | url=http://www.edpsciences.org/articles/aa/abs/2005/27/aa2864-05/aa2864-05.html | author=Lovis "et al." | title=The HARPS search for southern extra-solar planets III. Three Saturn-mass planets around HD 93083, HD 101930 and HD 102117 |journal = Astronomy and Astrophysics | volume=437 | year=2005 | pages=1121 – 1126 | doi=10.1051/0004-6361:20052864 | format=abstract

External links

* [http://simbad.u-strasbg.fr/Simbad SIMBAD] [http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HD+101930 entry]
* [http://www.obspm.fr/encycl/encycl.html The Extrasolar Planets Encyclopaedia] [http://www.obspm.fr/encycl/HD101930.html entry]