1A faint constellation (the Sextant), lying on the celestial equator between Leo and Hydra.

1. 1.1as genitive Sextantis /sɛkˈstantɪs/ Used with preceding letter or numeral to designate a star in the constellation Sextans.
   与其前面的字母或数字连用以标记该星座中的星六分仪（星）座的
   the star Alpha Sextantis

   六分仪座α星。