HD 88133

Starbox short
name=HD 88133
epoch=2000
constell=Leo
ra=10^h 10^m 7.68^s
dec=+18° 11' 12.74"
spectral=G5 IV
appmag_v=8.06
dist_ly=242.7
dist_pc=74.46
names=BD+18°2326, HIP 49813

HD 88133 is an 8th magnitude star in the constellation of Leo. It is classified as a yellow subgiant star (spectral type G5 IV). It is slightly more massive than our Sun, cooler and more luminous. As a subgiant, it has left the main sequence and started to evolve towards red gianthood. Located at a distance of 240 light years from Earth it is not in our immediate neighbourhood and thus not visible to the unaided eye. With a small telescope it should be easily visible.

In 2004 a planet was found to orbit the star.

HD 88133 b

Planetbox begin
name=HD 88133 bPlanetbox orbit
semimajor=0.0472±0.0027
eccentricity=0.133±0.072
period=3.41587±0.00059
ang_dist=0.631
long_peri=349
t_peri=2,453,016.31±0.32
semi-amp=36.1±3.0Planetbox character
mass=>0.299±0.033Planetbox discovery
discovery_date=2004
discovery_method=Radial velocity
discoverers=Fischer, Laughlin,
Butler et al.
discovery_status=Published

HD 88133 b is an extrasolar planet orbiting the star HD 88133. It is probably less massive than Jupiter and even Saturn. It orbits the star in a very tight orbit, completing one revolution around the star in every three and half days or so. Despite the relatively large radius of the star (about 2 times Solar), no transits have been detected.

References

*cite journal | url=http://www.journals.uchicago.edu/doi/full/10.1086/426810 | author=Fischer "et al." | title=The N2K Consortium. I. A Hot Saturn Planet Orbiting HD 88133 | journal=The Astrophysical Journal | volume=620 | issue=1 | year=2005 | pages=481 – 486 | doi=10.1086/426810
*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/0607493 web Preprint] )

External links

* [http://simbad.u-strasbg.fr/Simbad SIMBAD] [http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HD+88133 entry]
* [http://www.obspm.fr/encycl/encycl.html The Extrasolar Planets Encyclopaedia] [http://www.obspm.fr/encycl/HD88133.html entry]
* [http://www.extrasolar.net Extrasolar Visions] [http://www.extrasolar.net/planettour.asp?StarCatId=normal&PlanetId=270 entry]