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 {{DISPLAYTITLE:Tongling (桐陵)}}

Tóng Líng (Phoenix Tree Mound, 桐陵) is the sixth star on the right wall of the ''[[Zigong|Zǐ Gōng]]'' (''Purple Palace, 紫宮'')  or Zǐwēi Yuán (Purple Enclosure), counting northward from the southern gate. It lies within the modern constellation ''[[Camelopardalis]]''.   

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== Etymology and History of the Name ==
The name ''Tongling'' was current from the Han through the Tang dynasty but was later replaced by ''Shào Wèi'' (Junior Guard, 少衛) in the revised nomenclature of the ''Zigong''. As a result, the original designation fell gradually into obscurity.

The term ''tong'' refers to the ''wutong'' tree (''Firmiana simplex''), which in Chinese mythology is the perch of the phoenix; ''líng'' denotes a “high mound” or “tumulus.” Thus, ''Tóng Líng'' may be interpreted as “Phoenix Tree Mound,” evoking a place of elevation and sanctity within the imperial celestial precinct.

=== Constellation & Star Name ===
The ''Cheonsang Yeolcha Bunyajido'' (''Tianxiang Lieci Fenye zhi tu'', Diagram of the Astrological Field Allocations) preserves the most ancient configuration of Chinese asterisms, allowing ''Tongling'' to be securely identified with HIP 33694.<ref>[https://www.raa-journal.org/issues/all/2024/v24n12/202412/t20241216_278177.html] Bo-Shun Yang and Susanne M. Hoffmann 2024 ''Res. Astron. Astrophys.'' 24 125004</ref>  The name is also explicitly labeled in another Tang-period star map, the ''Gezi Yuejin tu'' (Gridded Monthly Progress Diagram), confirming its position and continued recognition during that era.  

See [[Zigong]] for more 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)
|-
|Tongling (桐陵, 6th on the Right Wall )
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|
|
|
|
|HIP 33694
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|-
|Shaowei (少衛, 6th on the Right Wall )
|α Cam
|α Cam
|BN Cam
|γ Cam
|BK Cam
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|HIP33694
|}

== Images ==
<gallery widths="300" heights="300" caption="Tongling">
File:Tongling in Cheonsang Yeolcha Bunyajido.png|'''Tongling in ''Cheonsang Yeolcha Bunyajido'''''
File:Tongling in Geziyuejintu.png|'''Tongling in ''Geziyuejintu'''''
</gallery> 

==IAU Working Group on Star Names==

== References ==
[[References]] 

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