Physical data:

Diameter: 49,492 Km
Mass: 1.024 X 1026 Kg
Mean cloud temperature: -193 to -153C
Minimum distance from Earth:
Mean distance from the Sun: 4,504,300,000 km
Period of rotation: 16.11 hours
Period of orbit: 164.79 years
Number of moons: 8 (Despina, Galatea, Larissa, Naiad, Nereid, Proteus, Thalassa, Triton)