Neptune

Neptune is a blue Gas Giant like Uranus and is named after the Roman God of the Sea.

The dark spot in the image here is a storm like the Great Red Spot on Jupiter. However, the blue storm here has probably already disappeared.

Neptunes' winds are the fastest known on any planet, getting as fast as 2000 km per hour.

Voyager 2 is the only spacecraft to visit Neptune (in 1989).

Neptune has a dozen small moons and one large one called Triton, i.e. 13 moons in total.

Until recently, Neptune was the most distant planet from the Sun, and had been since 1979, but Pluto's orbit crossed Neptunes' on the 11th February 1999 to return to being the most distant planet.

Facts and Figures
Orbit	4,504,300,000 km from the Sun or 30.06 AU
Radius	24,746 km
Mass	1.02 x 1026 kg or 17.1 Earths
Length of Year	164.79 Earth years
Length of Day	16.1 Earth hours
Surface Gravity	1.12 g
Surface Temperature	about -200 °C