High Quality Content by WIKIPEDIA articles! XO-5b is an extrasolar planet approximately 831 light years away in the constellation of Lynx. This planet was found by the transit method by Burke et al. in May 2008. The planet has mass 1.15 MJ and radius 1.15 RJ, making the density of this planet identical to water (1000 kg/m3). This planet orbits very close to the G-type parent star, as it is typical for transiting planets, classing this as Hot Jupiter. It takes only 4.188 days (or 100.5 hours) to orbit at an orbital distance of 7.6 gigameters (0.0508 AU).