NASA/Johns Hopkins APL/Southwest Research Institute
Dwarf planet
Pluto
Has mountains of water ice.
Object typeDwarf planetDiameter2,377 kmMass0.0022 Earth massesGravity0.62 m/s²Average temperatureAbout -229°CDistance from the Sun5.9 billion km averageOrbital period248 Earth yearsRotation period6.4 Earth daysNumber of moons5AtmosphereThin nitrogen atmosphere when near the SunDiscoveryClyde Tombaugh, 1930
Interesting Facts
Has mountains of water ice.
Charon is so large that both bodies orbit a point outside Pluto.
