1A constellation near the north celestial pole, with no very bright stars.

1. 1.1as genitive Cephei /ˈsiːfɪʌɪ/ Used with preceding letter or numeral to designate a star in the constellation Cepheus.
   与其前面的字母或数字连用以标记该星座中的星仙王星座的
   the star Beta Cephei

   仙王座β星。