Neptune • Neptune is the fourth largest planet and coolest planet in the Solar System. • Neptune was the first planet located through mathematical predictions rather than through regularobservations of the sky. • Neptune was discovered by Urbain Le Verrier, John Couch Adams, and Johann Galle on September 23, 1846. • The only spacecraft ever to visit Neptune was Voyager 2 in 1989. • The magnetic field of Neptune is about 27 times more powerful than that of Earth. • One Neptune year is equal to 164.83 Earth Years • Neptune has six known rings. • In 2011, Neptune completes its first 165-year orbit of the sun since its discovery in 1846. • Neptune has 13 moons, the largest of which is named Triton. The other moons are: Naiad, Thalassa, Despina, Galatea, Larissa, Proteus, Nereid, Halimede, Sao, Laomedeia, Neso, and Psamathe.
Posted on: Sun, 09 Mar 2014 10:44:05 +0000