Johann gottfried Galle was using one of the first telescopes and spotted a very small blue dot now known as Neptune named after the Roman god Neptune.''As blue as the sea'' he might have said.
the compounds that are found on Neptune are Hydrogen, Metane, Hydrogen deteride, and Ethane
on space
Actually it was found by voyager 2, it's the same that discover Neptune
it was unknown until they found a gravitational pull on Neptune
Urbain Leverrier found it but John C. Adams first predicted neptune was there.
The 8th planet : Neptune.
Neptune
Neptune was the first planet found by mathematical prediction rather than by empirical.
There are trace amounts of water in Neptune's atmosphere in the form of ice crystals.
There are 13 moons orbiting Neptune; there aren't any ON it though.
Eris is found past Neptune along with Pluto
it is found on the planet neptune