What is Neptune's symbol?
See link.
The Neptunes was created in 1990.
The planets were named after Roman gods. Demeter is not one of them.
neptunes gravity is high
go here: http://solarsystem.nasa.gov/multimedia/gallery/Pluto_Sym-browse.jpg
Neptune's sword is commonly referred to as a trident. It is a three-pronged spear-like weapon or symbol typically associated with the Roman god Neptune (equivalent to the Greek god Poseidon), who is often depicted holding a trident as a symbol of his power over the sea.
hydrogen and helium
It was discovered in 1846.
gas
Hera & Zeus
triton
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