Astronomy:WASP-3b
 Size comparison of WASP-3b with Jupiter. | |
| Discovery | |
|---|---|
| Discovered by | Pollacco et al. (SuperWASP) |
| Discovery site | ORM |
| Discovery date | October 31, 2007 |
| Transit | |
| Orbital characteristics | |
| 0.0317+0.0006−0.001 AU | |
| Eccentricity | 0 |
| Orbital period | 1.8468372 ± 6e-07 d |
| Inclination | 85.06+0.15−0.16 |
| Star | WASP-3 |
| Physical characteristics | |
| Mean radius | 1.454 ± 0.084 |♃|J}}}}}} |
| Mass | 2.06 ± 0.13 |♃|J}}}}}} |
| Mean density | 1,040 kg/m3 (1,750 lb/cu yd) |
| 2.71 m/s2 (8.9 ft/s2) 26.6 g | |
| Physics | 1983 |
WASP-3b is an extrasolar planet orbiting the star WASP-3 located approximately 800 light-years away in the constellation Lyra. It was discovered via the transit method by SuperWASP, and follow up radial velocity observations confirmed that WASP-3b is a planet. The planet's mass and radius indicate that it is a gas giant with a similar bulk composition to Jupiter. WASP-3b has such an orbital distance around its star to classify it in the class of planets known as hot Jupiters and has an atmospheric temperature of approximately 1983 K.[1]
WASP-3b undergoes no detectable gravitational tugging from other bodies in this system.[2]
The study in 2012, utilizing a Rossiter–McLaughlin effect, have determined the planetary orbit is probably aligned with the equatorial plane of the star, misalignment equal to 3.3+2.5−4.4°.[3]
See also
References
- ↑ Pollacco, D. et al. (2008). "WASP-3b: a strongly irradiated transiting gas-giant planet". Monthly Notices of the Royal Astronomical Society 385 (3): 1576–1584. doi:10.1111/j.1365-2966.2008.12939.x. Bibcode: 2008MNRAS.385.1576P. https://academic.oup.com/mnras/article/385/3/1576/1013033.
- ↑ M Montalto et al. (Nov 2, 2012). "A new analysis of the WASP-3 system: no evidence for an additional companion". MNRAS 427 (4): 2757. doi:10.1111/j.1365-2966.2012.21926.x. Bibcode: 2012MNRAS.427.2757M.
- ↑ Albrecht, Simon; Winn, Joshua N.; Johnson, John A.; Howard, Andrew W.; Marcy, Geoffrey W.; Butler, R. Paul; Arriagada, Pamela; Crane, Jeffrey D. et al. (2012), "Obliquities of Hot Jupiter Host Stars: Evidence for Tidal Interactions and Primordial Misalignments", The Astrophysical Journal 757 (1): 18, doi:10.1088/0004-637X/757/1/18, Bibcode: 2012ApJ...757...18A
External links
Coordinates: 
18h 33m 32s, +35° 39′ 42″
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