A calendar cycle discovered in 433 BC by the ancient Greek astronomer Meton. The relationship between the lunar month and the solar year is 29.53059 days x 235 = 6939.69 days 365.24220 days x 19 = 6939.60 days, so the number of days in both is almost the same. In other words, 235 calendar months is equal to 19 calendar years, and if the total number of days is 6940 days, then [Toshio Watanabe] [Reference] |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
古代ギリシアの天文学者メトンによって紀元前433年に発見された暦学上の周期。朔望(さくぼう)月と太陽年の間には [渡辺敏夫] [参照項目] |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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