Planet Name: Neptune
Named For: The Roman god of the sea
Size: 30,775 miles in diameter, four times the size of Earth
Moons: 16 known moons, the largest is named Triton
Rings: 5 known rings and 4 known arcs; an arc is a particle cluster within a ring system
Temperature: Average temperature is -330 degrees Fahrenheit
Distance from the Sun: Average of 2.8 billion miles
Distance from Earth: 3 billion miles
Number of Earth Days It Takes to Orbit the Sun: 60,190 days
Source: NASA