WASP-4: Difference between revisions
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I discovered this planet but it doesn't really exist! its a big yellow gorilla in the sky!!!! |
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==Planetary system== |
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In 2007, an [[extrasolar planet]], [[WASP-4b]], was discovered orbiting this star.<ref name=wasp>{{ cite journal |
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| title=WASP-4b: A 12th Magnitude Transiting Hot Jupiter in the Southern Hemisphere |
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| url=http://www.iop.org/EJ/article/1538-4357/675/2/L113/22429.html |
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| author= Wilson ''et al.'' |
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| journal=[[The Astrophysical Journal]] Letters |
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| volume=675 |
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| issue=2 |
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| month=March |
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| year=2008 |
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| pages=L113–L116 |
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| {bibcode=2008ApJ...675L.113W |
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| doi=10.1086/586735}}</ref> |
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{{PlanetboxOrbit begin}} |
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{{OrbitboxPlanet |
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| exoplanet = [[WASP-4b]] |
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| mass = 1.237 ± 0.064<ref name=metrics2>{{ cite journal |
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| title=THE TRANSIT LIGHT CURVE PROJECT. XI. SUBMILLIMAGNITUDE PHOTOMETRY OF TWO TRANSITS OF THE BLOATED PLANET WASP-4b |
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| author=Winn ''et al.'' |
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| journal= The [[Astronomical Journal]] |
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| url=http://www.iop.org/EJ/abstract/1538-3881/137/4/3826 |
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| volume=137 |
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| issue=4 |
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| year=2009 |
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| April |
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| pages= 3826–3833 |
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| doi=110.1088/0004-6256/137/4/3826}}</ref> |
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| semimajor = 0.0230±0.001 |
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| period = 1.3382282±0.000003 |
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| eccentricity = 0 |
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}} |
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{{PlanetboxOrbit end}} |
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==See also== |
==See also== |
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Revision as of 14:36, 17 March 2010
 Artistic rendering of WASP-4 b | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Phoenix |
| Right ascension | 23h 34m 15.06s[1] |
| Declination | −42° 03′ 41.1″[1] |
| Apparent magnitude (V) | 12.5[2] |
| Characteristics | |
| Spectral type | G7V[1] |
| Apparent magnitude (V) | 13.0[1] |
| Apparent magnitude (R) | 11.9[1] |
| Variable type | V*(1SWASP)[1] |
| Astrometry | |
| Distance | 1000 ± 160 ly (300 ± 50[2] pc) |
| Details | |
| Mass | 0.85 +0.11-0.07[3] M☉ |
| Radius | 0.87 +0.04-0.03[3] R☉ |
| Surface gravity (log g) | 4.45+0.016 −0.029[2] cgs |
| Temperature | 5500 ± 150[2] K |
| Metallicity | [M/H]=0.0 ± 0.2[2] |
| Other designations | |
| Database references | |
| SIMBAD | data |
WASP-4 is a G-type main sequence star approximately 1,000 light-years away in the constellation of Phoenix.[1]
I discovered this planet but it doesn't really exist! its a big yellow gorilla in the sky!!!!
See also
References
- ^ a b c d e f g h WASP-4, entry, SIMBAD. Accessed on line June 19, 2008.
- ^ a b c d e Cite error: The named reference
waspwas invoked but never defined (see the help page). - ^ a b Gillon; et al. (2009). "Improved parameters for the transiting hot Jupiters WASP-4b and WASP-5b". Astronomy and Astrophysics. 496: 259–267. doi:10.1051/0004-6361:200810929.
{{cite journal}}: Explicit use of et al. in:|author=(help)
External links
- "SuperWASP Homepage". Retrieved 2008-07-02.
- "UK planet hunters announce three new finds" (PDF). 2007-10-30. Retrieved 2008-07-02.
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