WASP-14b

WASP-14b
Exoplanet List of exoplanets

Size comparison of WASP-14b with Jupiter.
Parent star
Star WASP-14
Constellation Boötes
Right ascension (α) 14h 33m 06.356s[1]
Declination (δ) +21° 53 40.99[1]
Apparent magnitude (mV) 9.75
Distance520 ± 245 ly
(160 ± 75 pc)
Spectral type F5V
Orbital elements
Semi-major axis(a) 0.037+0.001
0.002
AU
Periastron (q) 0.033 AU
Apastron (Q) 0.041 AU
Eccentricity (e) 0.095+0.004
0.007
Orbital period(P) 2.243756+5E-6
1E-6
d
Inclination (i) 84.79+0.52
0.67
°
Argument of
periastron
(ω) 254.9+0.92
1.72
°
Time of transit (Tt) 2454465.81963+0.00065
0.00034
JD
Physical characteristics
Mass(m)7.725+0.43
0.67
MJ
Radius(r)1.259+0.08
0.058
RJ
Density(ρ)5133 kg m−3
Surface gravity(g)126.2 m/s² (12.87 g)
Temperature (T) 2800
Discovery information
Discovery date April 1, 2008
Discoverer(s) Cameron et al. (SuperWASP)
Discovery method Transit
Discovery site SAAO
Discovery status Published[2]
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

WASP-14b is an extrasolar planet discovered in 2008 by SuperWASP using the transit method. Follow-up radial velocity measurements showed that the mass of WASP-14b is almost eight times larger than that of Jupiter. The radius found by the transit observations show that it has a radius 25% larger than Jupiter. This makes WASP-14b one of the densest exoplanets known.[2] Its radius best fits the model of Jonathan Fortney.[3]

Rotation

As of August 2008, the most recent calculation of WASP-14b's Rossiter–McLaughlin effect and so spin-orbit angle was −14 ± 17 degrees.[4] It is too eccentric for its age and so is possibly pulled into its orbit by another planet.[2]

References

Media related to WASP-14b at Wikimedia Commons

Coordinates: 14h 33m 06s, +21° 53′ 41″


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