Neptune+Page

Neptune is named for the roman god of the sea. It is also the eighth planet from the sun. Forth largest planet by diameter and thrid by mass, it is the blue twin to Uranus. Neptune is 17 times the mass of earth. Uranus is slightly smaller then Neptune. It was found by mathmatical prediction on September 23, 1846. It's largest moon, Triton, was found shortly after. Neptune was visted only once when a spacecraft, //Voyager 2//, passed it on August 25, 1989. the atmosphere has traces of hydrogen and helium. Hydrocarbons and possibly nitrogen was found as well, along with ammoina and methain. along with it's twin, Neptune was catigorized as an "ice giant". the core is prooved to be made of mostly ice and rock. It's atmosphere is notable for it's active and viable weather patterns.