Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Caelum veter. - region of the fixed stars
         (Constellation) Ophiuchus veter. - Oph
           (Star system) ο Ophiuchi
             171800.5-241703 (Star) ο Ophiuchi B
             171800.7-241713 (Star) ο Ophiuchi A