Ice giant
Neptune
Neptune’s deep blue comes from methane absorption. Winds there are among the fastest measured in the solar system.
- Avg. distance
- 30.1 AU
- Diameter
- 49,244 km
- Day length
- ~16 hours
- Year length
- ~165 Earth years
- Moons
- 16 known
Did you know?
Triton orbits Neptune backwards—likely a captured Kuiper Belt object.