| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | WASP-14 | |
| Constellation | Boötes | |
| Right ascension | (α) | 14h 33m 06s |
| Declination | (δ) | +21° 53′ 41″ |
| Apparent magnitude | (mV) | 9.75 |
| Distance | 520±245 ly (160±75 pc) |
|
| Spectral type | F5V | |
| Orbital elements | ||
| Semimajor 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 K |
| Discovery information | ||
| Discovery date | April 1, 2008 | |
| Discoverer(s) | Cameron et al. (SuperWASP) | |
| Detection method | Transit | |
| Discovery site | SAAO | |
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
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.[1] Its radius best fits the model of Fortney.[2]
As of August 2008, the most recent calculation of WASP-14b's Rossiter-McLaughlin effect and so spin-orbit angle was that of Joshi.[3] This is −14 ± 17 degrees. It is too eccentric for its age and so is possibly pulled into its orbit by another planet.[1]
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