1A small southern constellation (the Fly), lying in the Milky Way between the Southern Cross and the south celestial pole.

1. 1.1as genitive Muscae /ˈməskē/ Used with preceding letter or numeral to designate a star in the constellation Musca.
   与其前面的字母或数字连用以标记该星座中的星苍蝇星座的
   the star Beta Muscae

   苍蝇座β星。