SWEEPS-04

Starbox begin
name=SWEEPS J175853.92−291120.6Starbox observe
epoch=J2000
ra=17h 58m 54s
dec=-29° 11' 21"'
appmag_v=18.8
constell=Sagittarius Starbox astrometry
gal_lat=-02.6261
gal_lon=001.2601
absmag_v=
- style="vertical-align: top;"
Distance
6500 ly
(2000 pc)Starbox detail
mass=3.8
radius=0.81
gravity=13Starbox reference
Simbad=SWEEPS%20J175853.92-291120.6

Planetbox begin
name = SWEEPS-04 Planetbox orbit
semimajor = 0.055
period = 4.2
inclination = >87
ang_dist = 0.028Planetbox character
mass = <3.8
radius = 0.81±0.1 Planetbox discovery
discovery_date = 2006
discoverers = Sahu et al.
discovery_method = Transit
discovery_status = Confirmed SWEEPS-04 is an extrasolar planet orbiting the star SWEEPS J175853.92−291120.6 in the constellation Sagittarius approximately 6500 ly away from the Solar System. This planet was found in 2006 by the Sagittarius Window Eclipsing Extrasolar Planet Search (SWEEPS) program that uses transit method.

This superjovian planet has about 3.8 times the mass of Jupiter. Despite of being a hot Jupiter, the planet is unusually small, only 81% the size of Jupiter probably due to its mass and the abundance of heavier elements in its interior. It is even smaller than Saturn. It orbits at the average distance of 8.2 Gm (0.055 AU) from the parent star, taking 4.2 days to revolve around it with zero eccentricity.

See also

* SWEEPS-10
* SWEEPS-11

References

*cite journal | url=http://www.nature.com/nature/journal/v443/n7111/abs/nature05158.html | author=Sahu "et al." | title=Transiting extrasolar planetary candidates in the Galactic bulge | journal=Nature | format=abstract | volume=443 | pages=534–540 | year=2006 | doi=10.1038/nature05158 ( [http://fr.arxiv.org/abs/astro-ph/0610098 web Preprint] )

External links

* [http://exoplanet.eu/star.php?st=SWEEPS-04 The Extrasolar Planets Encyclopaedia: Notes for planet SWEEPS-04]