The Equator is an imaginary line around the middle of the Earth.

Pluto

Pluto is usally the ninth and farthest planet from the sun, however sometimes its orbit brings it closer to the sun than Neptune. Pluto is the smallest and the coldest planet. Pluto is about two-thirds the size of our Moon. A year on Pluto is 248 Earth years and a day on Pluto is about 6 Earth days. It is always dark on Pluto even at midday. The surface of Pluto is a cold -382 degrees F. Pluto is a solid ball of rock and ice with a faint atmosphere. Pluto has one moon called Charon.

Pluto is the only planet that has not been visited by a space craft, therefore we know very little about it. Pluto was discovered in 1930 by the astronomer Clyde W. Tombaugh . Pluto is named after the Roman God Pluto.

Facts about Pluto

Distance from the Sun: 3.66 billion

Diameter at the equator: 1,398 miles

Time taken for 1 orbit: 247.7 years

Return to Space

Did you know?

When the Moon passes between the Earth and the Sun, it casts a shadow and causes an eclipse.

The Earth is 93 million miles from the Sun.

There is a high and low tide because of our moon and the Sun.

Billions of years from now, the Sun will swell up to become a red giant which in time will shrink to become a tiny star called a white dwarf.