Eris has one moon called Dysnomia. It was discovered on September 10, 2005. Dysnomia was originally nicknamed "Gabrielle", after a character from the television series "Xena: Warrior Princess", like Eris. However, like Eris, it could not be called this. Dysnomia was named after the daughter of Eris, in Greek mythology. Dysnomia is the goddess (or spirit) of lawlessness and poor civil constitution.