Contains a transiting hot Jupiter. This planet was used as a test for the Kepler mission, which was able to detect the planet's occulation, as well as evidence of phases. It was found to be orbiting backwards only a day after the first retrograde exoplanet WASP-17b was announced. Very little of its heat is transported to its night side. There is some evidence for a planet further out that may be responsible for its orbit. Observed by Kepler and also dubbed Kepler 2b.