Neptunus is planet number eight, counted from the sun. The smallest distance to the sun is 4,46 billion km and the mean distance is 4,94 km. The planet travels around the sun in 164 years and 257 days, with a speed of 5,4 km/s.

The clouds of Neptune

This is Neptune.
One day is 0 days, 16 hours and 7 minutes. The diameter is 49.528 km The gravity force is 1,12 that on earth. Temperature at the surface is minus 218 degrees Celsius. .
Up till 1989 it was stated, that Neptune was accompanied by two moons. But when the "Voyager 2" did visit the planet there were six more discovered. Eight moons in total is the conclusion.

Another picture of the atmosphere.