メトン周期簡易計算

19年ごとに月齢が同じになるという法則。メトン周期を単純計算します(Metonic cycle)
AD年(YY) 月(MM) 日(DD)
-57 1969/8/31(SUN) MOONAGE18.7(Aries25')
-38 1988/8/31(WED) MOONAGE18.9(Aries29')
-19 2007/8/31(FRI) MOONAGE17.7(Aries13')
Start Date 2026/8/31(MON) MOONAGE17.7(Aries13')
+19 2045/8/31(THU) MOONAGE17.9(Aries17')
+38 2064/8/31(SUN) MOONAGE18.5(Aries24')
-57 2083/8/31(TUE) MOONAGE18.3(Aries22')

メトン周期簡易計算ver1.0
since Sep4.2020
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