Comparison of Armillary Sphere in Ancient China and Western World

Armillary spheres were developed in the East and the West for a long time. They independently developed various functions for astronomy. In this article, we discuss the differences in mechanical structures, appearance, and functions between the armillary spheres in ancient China and Europe. The earl...

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Main Authors: Jian-Liang Lin, Kuo-Hung Hsiao
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Engineering Proceedings
Subjects:
Online Access:https://www.mdpi.com/2673-4591/89/1/15
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author Jian-Liang Lin
Kuo-Hung Hsiao
author_facet Jian-Liang Lin
Kuo-Hung Hsiao
author_sort Jian-Liang Lin
collection DOAJ
description Armillary spheres were developed in the East and the West for a long time. They independently developed various functions for astronomy. In this article, we discuss the differences in mechanical structures, appearance, and functions between the armillary spheres in ancient China and Europe. The earliest armillary sphere in ancient China was invented by Luo Xia Hong (落下閎) between 156 BC and 87 BC. Then, the armillary sphere in ancient China improved with the historical development of astronomy. The famous armillary sphere was built in an astronomical clock tower (水運儀象台) by Su Song (蘇頌) in the Song (宋) dynasty. This armillary sphere was an astronomical apparatus for the observation of celestial phenomena and the correction of time standards. However, the armillary sphere in Europe had different applications, even though the structures were similar. The armillary spheres in Europe simulated the sun’s trajectory in one day to predict the sunrise and sunset positions. They adjusted the tilting angle of the celestial sphere with the altitude of observation to observe the path of the stars around the ecliptic. Through this review, the armillary spheres in ancient China and Europe are defined clearly.
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spelling doaj-art-d454c69e0b074a678bb8a05dbdd5b04a2025-08-20T03:24:39ZengMDPI AGEngineering Proceedings2673-45912025-02-018911510.3390/engproc2025089015Comparison of Armillary Sphere in Ancient China and Western WorldJian-Liang Lin0Kuo-Hung Hsiao1Technology Education Division, National Science and Technology Muse, Kaohsiung 807, TaiwanExhibition Division, National Science and Technology Muse, Kaohsiung 807, TaiwanArmillary spheres were developed in the East and the West for a long time. They independently developed various functions for astronomy. In this article, we discuss the differences in mechanical structures, appearance, and functions between the armillary spheres in ancient China and Europe. The earliest armillary sphere in ancient China was invented by Luo Xia Hong (落下閎) between 156 BC and 87 BC. Then, the armillary sphere in ancient China improved with the historical development of astronomy. The famous armillary sphere was built in an astronomical clock tower (水運儀象台) by Su Song (蘇頌) in the Song (宋) dynasty. This armillary sphere was an astronomical apparatus for the observation of celestial phenomena and the correction of time standards. However, the armillary sphere in Europe had different applications, even though the structures were similar. The armillary spheres in Europe simulated the sun’s trajectory in one day to predict the sunrise and sunset positions. They adjusted the tilting angle of the celestial sphere with the altitude of observation to observe the path of the stars around the ecliptic. Through this review, the armillary spheres in ancient China and Europe are defined clearly.https://www.mdpi.com/2673-4591/89/1/15armillary sphereancient ChinaEurope
spellingShingle Jian-Liang Lin
Kuo-Hung Hsiao
Comparison of Armillary Sphere in Ancient China and Western World
Engineering Proceedings
armillary sphere
ancient China
Europe
title Comparison of Armillary Sphere in Ancient China and Western World
title_full Comparison of Armillary Sphere in Ancient China and Western World
title_fullStr Comparison of Armillary Sphere in Ancient China and Western World
title_full_unstemmed Comparison of Armillary Sphere in Ancient China and Western World
title_short Comparison of Armillary Sphere in Ancient China and Western World
title_sort comparison of armillary sphere in ancient china and western world
topic armillary sphere
ancient China
Europe
url https://www.mdpi.com/2673-4591/89/1/15
work_keys_str_mv AT jianlianglin comparisonofarmillarysphereinancientchinaandwesternworld
AT kuohunghsiao comparisonofarmillarysphereinancientchinaandwesternworld