Welcome to the first person on birthday corner to have a planet named after them: 47-year-old, Xena: Warrior Princess star – Aries, Lucy Lawless. Astronomer Michael E. Brown nicknamed his newly discovered planet "Xena" as it was more convenient than its official name 2003 UB313. "Xena" is now officially called Eris but Michael named Eris' moon Dysnomia after the Greek goddess of lawlessness.