Dwarf Planet
Pluto
TypeDwarf Planet
Mass1.303 × 10²² kg
Diameter2,377 km
Orbital Radius5,906 million km
Orbital Period90,560 days
Rotation Period153.29 hours (retrograde)
Known Moons5
Surface Gravity0.62 m/s²
Average Temp-230 °C
AtmosphereN2, CH4, CO (thin)
Discovered ByClyde Tombaugh
Discovery Year1930
About Pluto
Reclassified from planet to dwarf planet in 2006 by the IAU. Has a heart-shaped nitrogen ice plain called Tombaugh Regio. Has 5 moons including Charon, which is so large relative to Pluto that they orbit a point between them. New Horizons flew past in 2015, revealing a geologically active world.
Moons
Pluto has 5 known moons in total.
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