neptune
Neptune's internal structure resembles that of Uranus. Its atmosphere forms about 5% to 10% of its mass and extends perhaps 10% to 20% of the way towards the core. Increasing concentrations of methane, ammonia and water are found in the lower regions.
Source :Wikipedia
Rotation Time
16.08 Hours
Revolution Time
164.79 Years
Radius
24,622 KM
Average Temp.
-201°c