In the universe, nobody knows. We're not even half-way through discovering the planets in the universe yet.
However, in the solar system, Neptune is the 8th planet.
8th
The Neptunes was created in 1990.
neptunes gravity is high
hydrogen and helium
It was discovered in 1846.
gas
Hera & Zeus
triton
?
w
it is verydense but not really dense
THE NEPTUNES