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| Twenty-Eight Mansions | |
|---|---|
| Name | Twenty-Eight Mansions |
| Type | Astronomical/astrological system |
| Region | East Asia |
| Epoch | Classical antiquity to present |
| Major sources | Classic Chinese texts, Tang dynasty star charts, Dunhuang manuscripts |
Twenty-Eight Mansions
The Twenty-Eight Mansions form an ancient East Asian celestial system linking Chinese astronomy, astrology, and calendrics through lunar lodging divisions; the system appears in classical sources such as the Book of Silk, Shiji, Hanshu, and Tang dynasty star charts and influenced ritual calendars in courts like Han dynasty, Tang dynasty, and Ming dynasty administrations. Its network of associations extends to astronomical works by figures like Guo Shoujing, Shen Kuo, and Zu Chongzhi while informing cosmological symbolism in temples such as Longmen Grottoes, Mogao Caves, and imperial tomb complexes near Xi'an. Scholars from Japan, Korea, and regions connected by the Silk Road—including envoys from Nara period and Goryeo courts—transmitted and adapted the mansions through astronomical instruments like the armillary sphere associated with Zhang Heng and star catalogues comparable to Al-Sufi and Ptolemy.
The mansions divide the ecliptic into twenty-eight lunar lodges used across texts like the Zhou Li, Huainanzi, Book of Han, and ritual manuals of the Tang dynasty, aligning with constellations cited by astronomers such as Li Chunfeng, Yuan dynasty calculists, and Song dynasty court astronomers. They function as a lunar counterpart to systems in works by Claudius Ptolemy, Al-Biruni, and Varahamihira while interacting with calendars produced under rulers like Emperor Wu of Han and astronomical reforms by Emperor Taizong of Tang. The mansions appear in inscriptions at sites like Dunhuang, Yungang Grottoes, and Bezeklik and are referenced in chronicles like the Zizhi Tongjian and poetry by Li Bai and Du Fu.
Early descriptions occur in proto-astronomical records compiled during the Warring States period and standardized under the Han dynasty with star lists paralleling catalogs by Hipparchus and genealogy-like lists in the Records of the Grand Historian. During the Six Dynasties and Sui dynasty, court astronomers such as Gao Heng and artisans of the Imperial Astronomical Bureau produced celestial maps echoed later by Su Song and Song dynasty observatories. Exchanges along the Silk Road introduced parallels to lunar systems in works by Yaqut al-Hamawi and Qutb al-Din al-Shirazi, while contacts in the Heian period and Kamakura period led to adaptations recorded in Nihon Shoki and Goryeo sa.
Each mansion corresponds to star groups catalogued in star maps associated with Gaius Julius Hyginus-era catalogue traditions and east Asian cataloguers like Dunhuang astronomers, labeling star groups similar to entries in Star Catalogue of Comets and matching solar-lunar calculations used by Zu Chongzhi and Guo Shoujing. The mansions intersect with positional tables developed by Li Chunfeng and calendrical algorithms refined by Zhang Sui and Shen Kuo, and they underpinned astrological manuals consulted by court astrologers and ritualists within circles of Emperor Gaozu of Tang. Their use in divination paralleled lunar mansion concepts in Indian astrology texts like works of Bṛhat Saṃhitā and influenced horoscope practices recorded by Kūkai and Esoteric Buddhism scholars.
In temples and shrines such as Shaolin Monastery, Jokhang, and Mount Tai complexes, the mansions inform iconography alongside motifs from Daoism and Buddhism sutras transcribed at Dunhuang, influencing ritual timetables of monasteries patronized by dynasties like Tang and Yuan. They appear in funerary contexts at sites patronized by emperors like Emperor Wen of Sui and Qianlong Emperor and in ceremonial manuals preserved in the collections of Imperial Library of China and National Library of Japan. Court astronomers advising households of figures such as Cao Cao and Emperor Xuanzong used mansion-based omens in state rites and calendrical pronouncements recorded by chroniclers like Sima Qian.
Regional adaptations emerged in Japan (where Heian court astronomers integrated them into calendars used by Fujiwara clan), in Korea (with Goryeo and Joseon variants employed by scholars linked to Sejong the Great), and in Vietnam through contact with imperial envoys of Nguyễn dynasty. They corresponded to or contrasted with systems like the Indian nakshatra list, the twelve-sign zodiac used in Hellenistic astrology, and Arab-Persian lunar lodges discussed by Al-Biruni and Ibn al-Shatir, while appearing alongside calendrical reforms instituted by Emperor Wu of Liang and observations from observatories such as the Beijing Ancient Observatory.
Poets like Li Bai, Du Fu, Bai Juyi, and court chroniclers integrated mansion imagery into works copied in the Dunhuang manuscripts and anthologized in collections patronized by Emperor Taizong of Tang and Empress Wu Zetian. Visual arts at Longmen Grottoes, lacquerware in Tang tombs, and astronomical murals in Kucha and Turpan show mansion motifs paralleled in star atlases by Su Song and mapmakers in the Ming dynasty. Calendrical treatises by Zu Chongzhi, Guo Shoujing, and Zhu Zaiyu used mansion positions in almanacs distributed to magistrates appointed under dynasties like Han, Tang, and Qing dynasty.
Contemporary researchers in institutions such as Peking University, Kyoto University, Seoul National University, and University of Cambridge examine the mansions through manuscripts from collections at the National Library of China, British Library, and Bibliothèque nationale de France, engaging methods from historians like Joseph Needham and astronomers citing simulation work by Jean Meeus and Simon Schaffer. Interdisciplinary projects at museums including the Shanghai Museum and Freer Gallery of Art compare mansion charts with catalogs by Ptolemy and narratives in Dunhuang materials, while scholars such as Imre Galambos and David Der-wei Wang publish philological and literary analyses that reassess the mansions' roles in East Asian intellectual history.
Category:Chinese astronomy Category:East Asian culture