Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Caelum veter. - region of the fixed stars
         (Constellation) Bootes veter. - Boo
           (Star system) ε Bootis - Izar
             144459.2+270427 (Star) ε Bootis A
             144459.2+270430 (Star) ε Bootis B