Eris (dwarf planet)
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 was renamed to Dysnomia due to complications. Dysnomia was named after the daughter of Eris, in Greek mythology. Dysnomia is the goddess (or spirit) of lawlessness and poor civil constitution.