Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Caelum veter. - region of the fixed stars
         (Constellation) Cancer veter. - Cnc
           (Star system) ι Cancri
             084640.0+284555 (Star) ι Cancri B
             084641.8+284536 (Star) ι Cancri A