Nan Qi shu — astronomical treatise

《南齐书·天文志》 early 6th century · Xiao Zixian

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Overview

It records the celestial phenomena and portents of the Southern Qi, with calendrical change noted in passing.

Key data

ItemDetail
Completedearly 6th century (Liang)
AuthorXiao Zixian
ChaptersTreatises 1–3
Core contentSouthern Qi celestial records

The work

The Nan Qi shu was written by Xiao Zixian of the Liang and treats of the Southern Qi. Its astronomical treatise runs to three parts and is chiefly a record of phenomena.

The records

Year by year it lists eclipses of sun and moon, comets, guest stars and planetary motions — a continuous record of the southern sky.

The value of such records lies in their continuity: a single entry is hard to use, but centuries of them can be compared with modern recomputation.

The calendar in passing

The calendrical changes of the Southern Qi lie scattered among this treatise and those of the Song shu and Sui shu. In the histories astronomy and the calendar are separate chapters whose contents often overlap.

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Compiled and arranged by Chujia Kuang.