Yes. The humans have names for all our signs; at least, all of us that are here. We're Sagittarius, Gamzee is Capricorn, Feferi is Pisces, Nepeta is Leo, Vantas is Cancer, Aradia is Aries... and the others have names too, but I can't remember them.

See, there are stars around Earth that the humans named after us, and they know our signs, and assign our signs to themselves. Do you know Dave Strider? He's a Sagittarius.