Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Caelum veter. - region of the fixed stars
         (Constellation) Ophiuchus veter. - Oph
           (Star system) τ Ophiuchi
             180304.9-081050 (Star) τ Ophiuchi A
             180305.0-081049 (Star) τ Ophiuchi B