In 2009, the
SuperWASP project announced the discovery of a large,
hot Jupiter type
exoplanet,
WASP-18b, orbiting very close to this star. It has an
orbital period of less than a day and a mass 10 times that of Jupiter. A 2019 study proposed a second candidate planet with a 2-day orbital period based on
transit-timing variations, but a 2020 study using data from both
TESS and ground-based surveys ruled out the existence of a planet with the proposed properties, setting an upper limit of 10 Earth masses on any planet with this period. ==References==