• Key Information
  • Pluto

  • Type
    Dwarf Planet
  • Diameter
    1,476 miles
  • Distance from Sun
    4,583,190,417 miles
  • Orbit Time
    247.94 years
  • Length of Day
    6 days, 9 hours, 17 mins
  • Temperature
    -380 °F
  • Atmosphere
    Nitrogen, methane, carbon monoxide
  • Date of Discovery
    February 18, 1930 (Clyde W. Tombaugh)
  • Moons
    5
  • Learning Point
  • Pluto was considered the ninth planet of our solar system for many years, until it was decided in 2006 that a new definition of dwarf planet should be applied to it. It was visited in 2015 by the New Horizons mission, revealing a tremendous amount of information about it.
  • Project
  • What important things did the New Horizons mission reveal about Pluto.
  • Location
  • Located in
    Solar System, orbiting the Sun
  • Fun Facts
  • Pluto is in the Kuiper belt, an area of objects that are beyond Neptune, and contian other dwarf planets and small objects.
  • Its orbit takes it inside Neptune's orbit for a short time, but never is it at risk of colliding with Neptune.
  • Pluto has 5 moons, and one of which, Charon, is large enough to cause it to form a special orbital arrangement where they face each other permanently.
  • Its atmosphere is though to freeze during part of its orbit, and then unfreeze when it gets slightly closer to the sun.