| WASP-5b | |
| Discoverer: | Anderson et al. (SuperWASP) |
| Discovery Site: | SAAO |
| Discovered: | October 31, 2007 |
| Discovery Method: | Transit |
| Apsis: | astron |
| Semimajor: | 0.02739± |
| Eccentricity: | <0.012 |
| Star: | WASP-5 |
| Surface Grav: | 2.9 g |
| Single Temperature: | (2000K) |
WASP-5b is an exoplanet orbiting the star WASP-5 located approximately 1000 light-years away in the constellation Phoenix. The planet's mass and radius indicate that it is a gas giant with a similar bulk composition to Jupiter. The small orbital distance of WASP-5 b around its star means it belongs to a class of planets known as hot Jupiters. The planetary equilibrium temperature would be 1717 K, but the measured dayside temperature is higher, with a 2015 study finding 2500 K and a 2020 study finding 2000 K.
A study in 2012, utilizing the Rossiter–McLaughlin effect, determined that the planetary orbit is probably aligned with the equatorial plane of the star, with misalignment equal to 12.1°.