In 1989, the IAU published an official resolution to avoid the confusion between the colors of the planets Earth and Neptune. The visual similarity was causing problems for laymen and scientists alike. read more
In Greek, Neptune is called Poseidon. Neptune has the second largest gravity of any planet in the solar system – second only to Jupiter. The orbit path of Neptune is approximately 30 astronomical units (AU) from the Sun. This means it is around 30 times the distance from the Earth to the Sun. The largest Neptunian moon, Triton, was discovered just 17 days after Neptune itself was discovered. read more