NASA/JPLTerrestrial planetVenusHottest planet.Object typeTerrestrial planetDiameter12,104 kmMass0.815 Earth massesGravity8.87 m/s²Average temperatureAbout 465°CDistance from the Sun108.2 million kmOrbital period225 Earth daysRotation period243 Earth days, retrogradeNumber of moons0AtmosphereThick carbon dioxide with sulfuric acid cloudsDiscoveryKnown since antiquityInteresting FactsHottest planet.Its day is longer than its year.Major MissionsVeneraMagellanAkatsuki