The alignment of Casamari Abbey along the moonrise azimuth on Easter 1203

Casamari Abbey is a Cistercian abbey in Italy, about 10 kilometres from Veroli. The building of the church that we see today started in 1203. Here we show that a link can exist between the direction of the moonrise on Easter 1203 and that of the nave of the church. To determine the moonrise azimuth we use software CalSKY. To simulate it on satellite images, we use The Photographer’s Ephemeris.