Seven-day calendar

Japanese: 七曜暦 - しちようれき
Seven-day calendar

A calendar book that records the daily degrees of the sun, moon, and five planets - Saturn, Jupiter, Mars, Venus, and Mercury (longitudes measured along the equator from the star that is the basis of the 28 mansions). It is sometimes written as the Seven Star Calendar or the Seven Government Calendar. It is a type of astronomical calendar. It was originally brought over from China, but according to the Engishiki, the Shichiyo calendar was submitted by the Onmyoryo (Inner Bureau of Yin and Yang) on ​​the first day of the New Year every year, and was compiled in Japan in the early 10th century. It was temporarily discontinued in the Middle Ages, but was revived at the request of Shibukawa Harumi during the Jōkyō calendar reform (1685), and continued until the beginning of the Meiji period. The Shichiyo calendar is not a calendar for everyday use, but rather a special calendar not for general use; however, the Shichiyo calendar compiled by the Tenmonkata was published by the Kyoto sutra master Furuya and a group of Edo calendar makers and distributed to the general public.

[Toshio Watanabe]

"The Japanese Calendar" by Toshio Watanabe (1976, Yuzankaku Publishing)

[Reference] | Calendar | Astronomical Ephemeris

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

日(太陽)・月、および土星・木星・火星・金星・水星の5惑星の毎日の宿度(二十八宿(にじゅうはっしゅく)の基準となる距星から赤道に沿って測った経度)を書き記した暦本。七星暦、七政暦とも書くことがある。一種の天体暦である。元来、中国渡来のものであるが、『延喜式(えんぎしき)』によると、七曜暦は毎年、正月朔日(ついたち)に陰陽寮(おんようりょう)から奏進したもので、10世紀初めには日本でも編纂(へんさん)されていた。中世に至って一時中絶したことがあるが、貞享(じょうきょう)改暦(1685)のとき、渋川春海(しぶかわはるみ)から奏請して復活し、明治初めまで継続した。七曜暦は常用暦ではなく、特殊な暦であり一般用ではないが、天文方で編纂の七曜暦は京都の大経師降屋(ふるや)と、江戸暦師仲間により版行して一般にも頒布したものである。

[渡辺敏夫]

『渡辺敏夫著『日本の暦』(1976・雄山閣出版)』

[参照項目] | | 天体暦

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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