We announce the discovery of Kepler-6b , a transiting hot Jupiter orbiting a star with unusually high metallicity , [ Fe / H ] = +0.34 \pm 0.04 .
The planet ’ s mass is about 2/3 that of Jupiter , M _ { P } = 0.67 M _ { J } , and the radius is thirty percent larger than that of Jupiter , R _ { P } = 1.32 R _ { J } , resulting in a density of \rho _ { P } = 0.35 g cm ^ { -3 } , a fairly typical value for such a planet .
The orbital period is P = 3.235 days .
The host star is both more massive than the Sun , M _ { \star } = 1.21 M _ { \sun } , and larger than the Sun , R _ { \star } = 1.39 R _ { \sun } .