# An armillary sphere from ancient China

**Published by:** [Peng](https://paragraph.com/@ens12/)
**Published on:** 2022-08-08
**URL:** https://paragraph.com/@ens12/an-armillary-sphere-from-ancient-china

## Content

The armillary sphere was made by Zhang Heng, an astronomer in the Eastern Han Dynasty, about 1900 years ago. The armillary sphere is an instrument for measuring the spherical coordinates of celestial bodies, and it is also an instrument used to demonstrate celestial phenomena in ancient times.

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