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2018 4月 2 月曜日
*in the year 325, the Council of Nic馥 determined a date fo Easter. Full Moon would fall the 14th day of a \"moon month\"(1). Easter would be marked by the dominical letter(2)and the epactus(3). With the establishment of the equinox ne variatur on March 21, algorithms where elaborated to attribuate a date for Easter whatever the year. Time between two consecutive new moons: 20 days 12 hours 44 minutes 2.8 - Gives a letter code for the year\'s calendar Age of the moon on January 1st, minus one unity, 0 being the new moon\'s age.

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