Neptune
CategoryOuter Planet
SystemSolar System
Diameter49244 km
Orbital Period165 years
About Neptune
The windiest planet with speeds reaching 2,100 km per hour. The most distant planet from the Sun. Its largest moon Triton orbits backwards, suggesting it was captured from the Kuiper Belt. Has a faint ring system. The blue color comes from methane, but a mystery compound makes it bluer than Uranus. Takes 165 years to orbit the Sun once.