Armillary Sphere

Japanese: アーミラリー・スフェア - あーみらりーすふぇあ
Armillary Sphere

...The armillary sphere, created by Guo Shoujin of the Yuan Dynasty around 1276 (Zhiyuan 13), was faithfully copied during the Ming Dynasty from 1437 to 1442, and the armillary sphere that remains at the Purple Mountain Observatory in Nanjing is a faithful reproduction of this model. A similar observational instrument to the armillary sphere is the armillary sphere, which is said to have been invented by the ancient Greek Eratosthenes, and later T. Brahe also made an armillary sphere to observe the planets. The armillary sphere and the armillary sphere differ in that the former measures equatorial coordinates, while the latter measures ecliptic coordinates. ...

*Some of the terminology that refers to the "armillary sphere" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…元の郭守敬が1276年(至元13)ころに作成した玲瓏(れいろう)儀は,明代の1437‐42年にかけて忠実に複製されたが,南京の紫金山天文台に現存する渾天儀は,この形式を忠実にとどめたものである。渾天儀と同様の観測器械にアーミラリー・スフェアarmillary sphere(アルミラ球儀ともいう)があり,古代ギリシアのエラトステネスが発明したとされ,のちにT.ブラーエもアーミラリー・スフェアを作って惑星観測を行った。渾天儀とアーミラリー・スフェアは前者では赤道座標が測定されていたが,後者では黄道座標が測定されていた点で異なる。…

※「アーミラリー・スフェア」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

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