Neptune was named after the Roman God of the Sea. It was discovered in 1846 by J.G. Galle. In 2010 Neptune will complete it's first orbit around the sun since it's discovery. Neptune is 2.8 billion miles away from the sun. It's diameter is 30,000 miles. Neptune's day is 18 hours and it's year is 165 earth years. It has 3 rings and 8 moons. The normal temperature is -360 degrees farenheit, in the winter it is -390 degrees farenheit. Like Jupiter Neptune also has a storm, The Great Dark Spot.
Neptune has 2 main moons. Here are their names and about them:
Triton- It orbits the oposite direction of Neptune's spin. It's cycle of seasons is 680 years.
Nereid