…In 432 BC, the 19-year cycle discovered by Meton (the 6th century BC Chinese Zhangfa, from the 9th century BC in Babylonia) was introduced. Using this as a base, Kallippos (330 BC, 76-year cycle = Callippos cycle) and Hipparchus (125 BC, 304-year cycle) added improvements, creating a nearly perfect cycle. However, the Metonic cycle was not widely adopted, and each city-state arbitrarily inserted intercalations for political reasons. … *Some of the terminology explanations that mention "Kallippos" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…前432年にメトンMetōnが発見した19年周期=メトン周期(中国前6世紀の〈章法〉,バビロニアでは前9世紀より)が導入された。これを土台にカリポスKallippos(前330年,76年周期=カリポス周期)とヒッパルコス(前125年,304年周期)が改良を加え,ほぼ完全な周期が作られた。ただしメトン周期は実際にはあまり普及せず,各都市国家で政治的な理由での恣意(しい)的な置閏が行われていた。… ※「Kallippos」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
>>: Kalliope (English spelling)
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