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 {{DISPLAYTITLE:Shangwei (上衛)}}

''Shàng Wèi'' (The Great Imperial Guard, 上衛) is the name of the fifth star on the right wall and the sixth star on the left wall of the ''[[Zigong|Zǐ Gōng]]'' (Purple Palace, 紫宮) / ''Zǐwēi Yuán'' (Purple Forbidden Enclosure, 紫微垣), counting northward from the southern gate. Its corresponding star has changed many times throughout history.   

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==Etymology and History of the Name==
The ''Shi's Commentary'' (Shì shi zan, 石氏讚) records: “Within the ''Purple Palace'' are fifteen stars representing vassal ministers.” The star names—such as ''Shàng Wèi''  and other “guard” designations—may have developed in reference to, or as elaborations upon, this passage.

Each of the fifteen stars of the ''Purple Palace'' bears an individual name. However, those martial or defensive names are absent from pre-Tang sources and only became widespread from the mid-Tang period onward (8th century CE). Earlier texts employed a different nomenclature system (See [[Zigong]]).

It should be noted that there were two stars named ''Shàng Wèi'' (The Great Imperial Guard, 上衛): one is the the fifth star on the right wall and another is the sixth on the left wall.

===Constellation & Star Name===
See [[Zigong]] for better identification.  
{| class="wikitable"
|+
!Star Name
!Ho PENG YOKE<ref>P.-Y. Ho, “Ancient And Mediaeval Observations of Comets and Novae in Chinese Sources,” ''Vistas in Astronomy'', '''5''' (1962), 127-225.</ref>
!Yi Shitong<ref>Yi Shitong [伊世同]. ''Zhongxi Duizhao Hengxing Tubiao [中西对照恒星图表1950]''. Beijing: Science Press. 1981: p.&nbsp;56.</ref>
Based on catalogue in 18th century
!Pan Nai<ref name=":0">Pan Nai [潘鼐]. ''Zhongguo Hengxing Guance shi [中国恒星观测史]''. Shanghai: Xuelin Pree. 1989. p.&nbsp;226.</ref>
based on Huangyou Star Catalogue
!Pan Nai<ref>Pan Nai [潘鼐]. ''Zhongguo Hengxing Guance shi [中国恒星观测史]''. Shanghai: Xuelin Pree. 2009. p.&nbsp;443.</ref>
based on catalogues in Yuan dynasty
!SUN X. & J. Kistemaker<ref>Sun Xiaochun & Kistemaker J. ''The Chinese sky during the Han''. Leiden: Brill. 1997, pp.&nbsp;241-6.</ref>
Han Dynasty
!Boshun Yang<ref name=":1">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). p. 238.</ref>
before Tang dynasty
!Boshun Yang<ref name=":1" />
Song Jingyou(1034)
|-
|Shangwei (上衛, 5th on the right wall)
|43 Cam
|43 Cam
|HIP 33827
|HIP 29997
|alpha Cam
|HIP 40793
|27 Uma
|-
|Shangwei (上衛, 6th on the left wall)
|beta Cep
|73 Dra
|kappa cep
|73 Dra
|phi Dra
|omega Dra
|tau Dra
|}

==Images==
<gallery widths="300" heights="300" caption="Shangwei">
File:Shangwei in Suzhou Star Map.png|Shangwei in Suzhou Star Map
File:Shangwei in Xinyixiangfayao Star Map.jpg|Shangwei in ''Xin yixiang fayao'' Star Map
File:Shangwei in 18th Century Star Map.jpg|Shangwei in 18th Century ''Yixiang kaocheng'' Star Map
</gallery> 

==IAU Working Group on Star Names==
In 202x, the name of the historical constellation "xxx" was suggested to be used for one of the stars in this constellation. ... 

Decision: ... 
==References==
[[References]] 

[[References (Chinese)]]
[[Category:Asterism]]
[[Category:East Asian]]
[[Category:Chinese]]
[[Category:single star-asterism]]
[[Category:IAU-Star Name]]
[[Category:Ser]]

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