The sunrise amplitude equation applied to an Egyptian temple
  An equation, fundamental for solar energy applications, can be used to determine the sunrise amplitude at given latitude. It is therefore suitable for being applied to archaeoastronomical calculations concerning the orientation of towns, worship places and buildings. Here we discuss the cases of the Karnak worship complex, at Luxor, Egypt, and of the Great Temple of Amarna, and their orientation toward the sunrise. 
Amelia Carolina Sparavigna
physics.pop-ph