WASP-1b explained
| WASP-1b |
| Discoverer: | Cameron et al. (SuperWASP
and SOPHIE)
 South Africa
and  France |
| Discovery Site: | SAAO |
| Discovered: | September 25, 2006 |
| Apsis: | astron |
| Semimajor: | 0.0382 (± 0.0013) AU |
| Eccentricity: | 0 |
| Period: | 2.5199464 (± 8e-07) d |
| Inclination: | 88.65 (± 0.55) |
| Mean Radius: | 1.484 |
| Mass: | 0.86 ± 0.07 |
| Surface Grav: |
1.27 g |
| Single Temperature: | 1,800 K |
WASP-1b is an extrasolar planet orbiting the star WASP-1 located 1,300 light-years away in the constellation Andromeda.
Orbit and mass
The planet's mass and radius indicate that it is a gas giant with a similar bulk composition to Jupiter. Unlike Jupiter, but similar to many other planets detected around other stars, WASP-1b is located very close to its star, and belongs to the class of planets known as hot Jupiters.
WASP-1 b was discovered via the transit method by SuperWASP, for which the star and planet are named. Follow-up radial velocity measurements confirmed the presence of an unseen companion, and allowed for the mass of WASP-1 b to be determined.
In 2018, it was discovered via observations of the Rossiter-McLaughlin effect that the orbit of WASP-1b is strongly misaligned with rotational axis of the star by 79.0 degrees, making it a nearly "polar" orbit.[1]
See also
Further reading
- Precise Radius Estimates for the Exoplanets WASP-1b and WASP-2b . The Astrophysical Journal . 658 . 2 . 2007 . 1322–1327 . 10.1086/512008 . 2007ApJ...658.1322C. astro-ph/0610589 . Charbonneau . David . Winn . Joshua N. . Everett . Mark E. . Latham . David W. . Holman . Matthew J. . Esquerdo . Gilbert A. . o’Donovan . Francis T. . 14099767 .
- Photometric follow-up of the transiting planet around WASP-1 . . 376 . 3 . 2007 . 1296–1300 . 10.1111/j.1365-2966.2007.11537.x . 2007MNRAS.376.1296S. astro-ph/0610556 . Shporer . A. . Tamuz . O. . Zucker . S. . Mazeh . T. . 12694181 .
External links
Notes and References
- 1011.5664. 10.1111/j.1365-2966.2011.18603.x. The spin-orbit angles of the transiting exoplanets WASP-1b, WASP-24b, WASP-38b and HAT-P-8b from Rossiter-Mc Laughlin observations★. 2011. Simpson. E. K.. Pollacco. D.. Cameron. A. Collier. Hébrard. G.. Anderson. D. R.. Barros. S. C. C.. Boisse. I.. Bouchy. F.. Faedi. F.. Gillon. M.. Hebb. L.. Keenan. F. P.. Miller. G. R. M.. Moutou. C.. Queloz. D.. Skillen. I.. Sorensen. P.. Stempels. H. C.. Triaud. A.. Watson. C. A.. Wilson. P. A.. Monthly Notices of the Royal Astronomical Society. 414. 4. 3023–3035. 2011MNRAS.414.3023S. 46522188.
