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超辰
释义
超辰
chāo chén
古天文术语。汉以前占星家用岁星即木星纪年,以为此星十二年运行一周天,而其实不足十二年,约为11.86年。刘歆创超辰之说以补救之,谓经过一百四十四年按实测为八十六年后,岁星的实际位置便超过一个星次,谓之超辰。亦称超次。木星约每十二年绕日一周,为一周天,与十二辰相应,每年依次历恒星十二宫之一。但是木星绕日一周并不足十二年,积一百四十四年已多行一次,与十二宫相差一辰,称为「超辰」。
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almost-symplectic structure
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almost tolerance
almost triangular matrix
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更新时间:2025/11/9 8:01:16