Fact File
Distance from the Sun:
30.0
AU
Sidereal
revolution period (about Sun):
165 years
Mass (Earth=1):
17.1
Radius at equator (Earth=1):
3.88
Apparent size:
2.5 arc seconds
Sidereal rotation period (at equator):
19.2 hours
Moons:
8
Tidbits:
Neptune has a storm like the one on Jupiter, but this one is called the Great Dark Spot. It also has a lot of weather for being so far away from the Sun.