Neptune

The most distant planet from the Sun, and the one with the fiercest winds in the entire system, with gusts exceeding 2,000 km/h. Its existence was predicted mathematically, from irregularities in the orbit of Uranus, before it was ever observed, in 1846.

Diameter	49,244 km
Average distance from Sun	4,495 million km
Local year	164.8 Earth years
Confirmed moons	16