Save Gender Masculine & Feminine Usage Astronomy Pronounced Pron. eh-RAY-ee [key·IPA] Other Forms FormsAlrai Meaning & History Gamma Cephei is a binary star system in the constellation Cepheus. The system bore a traditional name variously spelled as Errai, Er Rai or Alrai, deriving from the Arabic الراعي (ar-rā‘ī), meaning "the shepherd".