NEPTUNE

Is very similar to Uranus in size. Its mass (weight) is over 17 times that of the Earth. Its diameter is 4 times that of our planet.

Is the eighth planet in order from the Sun. It is about 4.5 billion kilometers from the Sun.

Makes one complete orbit around the Sun every 164.79 years.

Rotates on its axis about the same speed as Uranus. It completes one rotation in about 18 hours and 26 minutes.

Has a weather system that is very active. Some storms with winds of 400 miles per hour have lasted for hundreds of years on its surface.

Has a total of 8 satellites (or moons).