Designed by
Title
Ecclesiastical computation system #118169071
Description
Ecclesiatical computation system, close to the astronomical watch, inside the Cathedral of Strasbourg France. The ecclesiastical computation is a set of operations allowing to calculate every year the dates of the mobile religious feasts and particularly that of Easter. His elements are: the golden number, the age of the cleric Moon, the Sunday letter, the solar cycle and a Roman indication of dates.
This image is editorial