Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Caelum veter. - region of the fixed stars
         (Constellation) Perseus veter. - Per
           014339.6+504119 (Star) φ Persei
           024412.0+491342 (Star system) θ Persei
           025041.8+555344 (Star system) η Persei
           025415.5+524545 (Star system) τ Persei
           025845.7+393946 (Star) π Persei
           030447.8+533023 (Star system) γ Persei
           030510.6+385025 (Star) ρ Persei
           030810.1+405720 (Star system) β Persei - Algol
           030904.0+493648 (Star system) ι Persei
           030929.8+445126 (Star system) κ Persei
           031117.4+393642 (Star system) ω Persei
           032419.4+495140 (Star system) α Persei - Mirfak
           033034.5+475943 (Star) σ Persei
           033629.4+481134 (Star) ψ Persei
           034255.5+474715 (Star system) δ Persei
           034419.1+321718 (Star system) ο Persei
           034511.6+423443 (Star system) ν Persei
           035407.9+315301 (Star system) ζ Persei - Atik
           035751.2+400037 (Star system) ε Persei
           035857.9+354728 (Star) ξ Persei - Menkib
           040635.0+502105 (Star) λ Persei
           041453.9+482434 (Star system) μ Persei