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248 Earth years
715 miles | 1,151 kilometers
Interesting Facts About Pluto
- Pluto is only about 1,400 miles wide. At that small size, Pluto is only about half the width of the United States.
- Pluto is about 3.6 billion miles away from the Sun and has five moons.
- Pluto’s atmosphere is thin and composed mostly of nitrogen, methane and carbon monoxide.
- Pluto and its largest moon, Charon, are so similar in size that they orbit each other like a double planet system.
- On average, Pluto’s temperature is -387°F (-232°C), making it too cold to sustain life, but it does have a heart-shaped glacier bigger than Texas.