熱木星
WASP-15 is host to the planet WASP-15b. The planet, which is a Hot Jupiter, orbits its host star at a distance of 0.0499 AU every 3.7520656 days. WASP-15b was noted by its discoverers because of its anomalously high radius, which is 1.428 times that of Jupiter, compared to its mass, which is 0.542 times the size of Jupiter. WASP-15b's large radius cannot be explained solely by its proximity to its star, suggesting that some form of tidal heating or other internal heating mechanism is also involved.