Kompjuterske analize pokazuju da samo dva dana u toku godine, suncevi zraci obasjavaju dno otvora. Jednom kada je poravnat sa sazvezdem Lava i jednom kada je poravnat sa Orionom.
Computer analysis reveals that on two days of the year, the sun's rays would illuminate the bottom of the shaft-- once when in line with the constellation of Leo and once when in line with Orion.