The planets were named after Roman gods. Demeter is not one of them.
Grains
Demeter's symbol is wheat.
What is Neptune's symbol?
See link.
demeters signs are a corn husk the four seasons and anything to do with nature
Arion is demeters son!
go here: http://solarsystem.nasa.gov/multimedia/gallery/Pluto_Sym-browse.jpg
his mom
persphene
Persephone
demeters downfall was her daugter pereshpohne was taken and demeter was shearchig so demters crops were faling
Ceres.