Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Caelum veter. - region of the fixed stars
         (Constellation) Aquila veter. - Aql
           (Star system) Wolf 1055
             1 (Star) Wolf 1055 A
             2 (Star) Wolf 1055 B - Van Biesbroeck's Star