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{{DISPLAYTITLE:Tusi (屠肆)}}
[[File:Tusi and Bodu reconstructed by Yang-before Tang.jpg|thumb|Tusi and Bodu before Tang (CC BY reconstructed by Yang).]]
Tú Sì (屠肆, "Butcher's Shop") is a Chinese asterism consisting of two stars, established by the Wuxian (巫咸) school during the Han dynasty. Together with [[Bodu]], it formed a double asterism within the super-constellation of [[Tianshi (天市)|Tianshi (天市]]), the Heavenly Market. 

== Etymology and History source ==
In early China, ''tusi'' referred to butcher shops within marketplaces, where whole livestock—such as cattle, sheep, poultry, or aquatic animals—were purchased, slaughtered, and sold by portions. According to the ''Zhouli'' (周礼, ''Rites of Zhou''), the hides, horns, tendons, and bones of some animals could be collected as a form of tax after butchering, whereas animals lacking these parts required a separate tax payment. Commentary from the Wuxian school further explains that the butcher's role involved both killing and cooking, serving delicacies to entertain guests. This suggests that some ancient ''butcher shops'' may have offered not only raw meat but also prepared foods. The ''Da Song Tianwen Shu'' (大宋天文书, ''Astronomical Treatise of the Great Song Dynasty'') explicitly defines ''Tusi'' as responsible for “slaughter and culinary preparation” (主屠宰、庖馔), reinforcing the interpretation of this asterism as part of the celestial ''Tianshi'' (天市, “Heavenly Market”) system, representing food supply and preparation.

=== Identification of stars source ===
''Tusi'' lies in close proximity to another Wuxian asterism, ''Bodu'' (帛度, “Textile Ruler”). Some divination texts and star charts place ''Tusi'' to the north (or northeast) of ''Bodu'', aligned east–west; others describe it as lying east of ''Bodu'', arranged north–south. In some star charts, the two are depicted together as a square formation. Because both asterisms are small and the diagrams often lack precision, minor shifts in their relative positions are common across sources.
{| class="wikitable"
|+
!Star Names or Orders(Qing)
!Yi Shitong
Based on catalogue in 18th century<ref>Yi Shitong伊世同. ''Zhongxi Duizhao Hengxing Tubiao''中西对照恒星图表1950. Beijing: Science Press.1981: 33.</ref>
!Pan Nai
based on Xinyixiangfayao Star Map<ref>Pan Nai潘鼐. ''Zhongguo Hengxing Guance shi''中国恒星观测史[M]. Shanghai: Xuelin Pree. 2009. p439.</ref>
!Pan Nai
based on catalogues in Yuan dynasty<ref>Pan Nai潘鼐. ''Zhongguo Hengxing Guance shi''中国恒星观测史[M]. Shanghai: Xuelin Pree. 2009. p305.</ref>
!SUN X. & J. Kistemaker
Han Dynasty<ref>Sun Xiaochun. & Kistemaker J. ''The Chinese sky during the Han''. Leiden: Brill. 1997, Pp241-6.</ref>
!Boshun Yang
before Tang dynasty<ref name=":0">B.-S. Yang杨伯顺, ''Zhongguo Chuantong Hengxing Guance Jingdu ji Xingguan Yanbian Yanjiu'' 中国传统恒星观测精度及星官演变研究 (A Research on the Accuracy of Chinese Traditional Star Observation and the Evolution of Constellations), PhD thesis, (Hefei: University of Science and Technology of China, 2023). 248.</ref>
!Boshun Yang
Song Jingyou(1034)<ref name=":0" />
!Boshun Yang
Song Huangyou(1052)<ref name=":0" />
|-
|Tusizuo (The left star of ''Tusi'')
|109 Her
|102 Her
|102 Her
|102 Her
|100 Her
|89 Her
|98 Her
|-
|Tusiyou (The right star of ''Tusi'')
|98 Her
|95 Her
|95 Her
|95 Her
|89 Her
|87 Her
|HIP 87777
|}

=== Maps (Gallery) source ===
{| class="wikitable"
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!historical map
!modern identification
(Yang 2023)
!same in Stellarium 25.1
|-
|[[File:Tusi and Bodu on Cheonsang-yeolcha-bunya-jido.jpg|thumb|Tusi and Bodu on ''Cheonsang-yeolcha-bunya-jido'']]
|[[File:Tusi and Bodu reconstructed by Yang-before Tang.jpg|thumb|Tusi and Bodu reconstructed in Han dynasty based on the ''Chenzhuo Star Catalogue'', identified by Boshun Yang (2023).]]
|[[File:Tusi and Bodu Stellarium before Tang.jpg|thumb|Tusi and Bodu reconstructed in Han dynasty based on the ''Chenzhuo Star Catalogue'', mapped in Stellarium 2025 by Boshun Yang.]]
|-
|[[File:Tusi and Bodu on Dunhuang Star Map.jpg|thumb|Tusi and Bodu on Dunhuang Star Map]]
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|[[File:Tusi and Bodu on Geziyuejintu.jpg|thumb|Tusi and Bodu on Geziyuejintu]]
|[[File:Tusi and Bodu reconstructed by Yang based on Jingyou star catalogue(1034).jpg|thumb|Tusi and Bodu based on the Jingyou Star Catalogue in Song Dynasty (1034), identified by Boshun Yang (2023).]]
|[[File:Tusi and Bodu Stellarium in Early Song (1034).jpg|thumb|Tusi and Bodu based on the Jingyou Star Catalogue in Song Dynasty (1034),mapped in Stellarium 2025 by Boshun Yang.]]
|-
|[[File:Tusi and Bodu on Xinyixiangfayao Star Map.jpg|thumb|Tusi and Bodu on ''Xinyixiangfayao'' Star Map (1080s)]]
|[[File:Tusi and Bodu reconstructed by Yang based on Huangyou star catalogue(1052).jpg|thumb|Tusi and Bodu based on the Huangyou Star Catalogue(1052), identified by Boshun Yang (2023).]]
|[[File:Tusi and Bodu Stellarium in Mid Song (1052).jpg|thumb|Tusi and Bodu based on the Huangyou Star Catalogue(1052), mapped in Stellarium 2025 by Boshun Yang.]]
|-
|[[File:Tusi and Bodu on Suzhou Star Map.jpg|thumb|Tusi and Bodu on Suzhou Star Map (1247)]]
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|[[File:Tusi and Bodu reconstructed by Yang based on Tianwen huichao star catalogue(1360s).jpg|thumb|Tusi and Bodu reconstructed by Yang based on Tianwen huichao star catalogue(1360s), identified by Boshun Yang (2023).]]
|[[File:Tusi and Bodu Stellarium in Yuan (1363).jpg|thumb|Tusi and Bodu Stellarium in Yuan (1363),based on the ''Tianwen Huichao'' Star Catalogue, mapped in Stellarium 2025 by Boshun Yang (2023).]]
|-
|[[File:Tusi and Bodu on Jianjie zongxingtu (1630s).jpg|thumb|Tusi and Bodu on ''Jianjie zongxing tu'' (1630s)]]
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|[[File:Tusi and Bodu Stellarium Qing.jpg|thumb|Tusi and Bodu based on catalogues in Qing Dynasty (China), identified by Yi Shitong(1981), mapped in Stellarium 2025 by Shuwei Sun.]]
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|}

== Star Name Discussion (IAU) source ==
In 2025, the name of the historical constellation name was suggested to be used for one of the stars in this constellation. As "Tusi" could be confused with other celestial bodies named Tusi after two Persian astronomers (asteroid (10269) Tusi and asteroid (7058) Al-Tusi), WGSN chose to add a determinative here. The chosen star 95 Her is "the left one in Tusi", in Chinese "Tusizuo", so WGSN adopts this name. 

== References source ==
[[References (Chinese)]]

[[Category:Asterism ]]
[[Category:Constellation ]]
[[Category:Eurasia]]
[[Category:East Asian]]
[[Category:Chinese ]]