WASP-4b

Planetbox begin
name = WASP-4bPlanetbox star
star = WASP-4
constell = Phoenix
ra = RA|23|34|15.06SIMBAD link|WASP+4|WASP-4, entry, SIMBAD. Accessed on line June 19, 2008.]
dec = DEC|−42|03|41.1
dist_ly = 1000±160
dist_pc = 300±50
class = G7VPlanetbox orbit
separation =
position_angle =
semimajor = 0.0230±0.001WASP-4b: A 12th Magnitude Transiting Hot Jupiter in the Southern Hemisphere, D. M. Wilson et al., "Astrophysical Journal Letters" 675, #2 (March 2008), pp. L113–L116. bibcode|2008ApJ...675L.113W. doi|10.1086/586735.]
semimajor_no_units =
eccentricity = 0
period = 1.3382282±0.000003
period_year =
inclination = 88.59±|1.36|1.50
ang_dist =
long_peri =
arg_peri =
t_peri =
t_peri_no_jd =
t_transit =
t_transit_no_jd = 2454365.91464±|0.00025|0.00023 HJD
t_approach =
semi-amp = 240±10Planetbox character
mass = 1.215±|0.087|0.079
mass_earth =
radius = 1.416±|0.068|0.043
radius_earth =
density =
gravity = 13.87±|0.75|1.05
gravity_earth =
temperature = 1761±|24|9Planetbox discovery
discovery_date = 31 October 2007 [http://www.superwasp.org/press_release2/WASP2007_national_pressV5.pdf UK planet hunters announce three new finds] , press release, WASP project. Accessed on line June 19, 2008.]
discoverers = Wilson "et al." (SuperWASP)
discovery_method = Transit
discovery_site = South African Astronomical Observatory
discovery_status = Published

WASP-4b is an extrasolar planet approximately 1,000 light-years away in the constellation of Phoenix. The planet was discovered orbiting the star WASP-4 in October of 2007. The planet's mass and radius indicate that it is a gas giant, similar to Jupiter. WASP-4b is close enough to its star to be classified as a hot Jupiter and has an atmospheric temperature of approximately 1761 K.

The planet was the first discovered by the WASP project using cameras in South Africa.

See also

* Hot Jupiter
* SuperWASP
* WASP-1b

References

External links

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