 Just as Helios, from his identification with Apollo, is called "Phoebus" ("bright"), Selene, from her identification with Artemis, is also commonly referred to by the epithet "Phoebe" (feminine form).The original Phoebe of Greek mythology is Selene's aunt, the Titaness mother of Leto and Asteria, and grandmother of Apollo, Artemis, and Hecate.Also from Artemis, Selene was sometimes called "Cynthia".