Neptune
- has a diameter of 48,600 kilometres
- is 4,486 million kilometres from the sun
- takes 19 hours to spin once on its own diameter
- takes 164 years to orbit the sun
- has 2 moons, Nereid and Triton
- has a surface temperature of –220 degrees Celsius
The atmospheric composition of Neptune is 85% Hydrogen, 13% Helium and 2% Methane. |