Tianji - Revision history

IanRidpath: Capitalization, copyedit

2026-02-22T18:29:47Z

Capitalization, copyedit

← Older revision		Revision as of 18:29, 22 February 2026
Line 2:		Line 2:
	Authors: IAU-WGSN Etymology Group, {{PAGEAUTHORS}}		Authors: IAU-WGSN Etymology Group, {{PAGEAUTHORS}}
	----		----
	Tiān Jì (Celestial Discipline, 天紀) consists of nine stars forming an east–west alignment that extends across the modern constellations ''[[Corona Borealis]]'', ''[[Hercules]]'', and ''[[Lyra]]''. This asterism and the coordinate of its determinative star was first recorded in the Western Han ''Shishi xingjing'' (Master Shi’s Star Canon, 石氏星經).		Tiān Jì (Celestial Discipline, 天紀) consists of nine stars forming an east–west alignment that extends across the modern constellations [[Corona Borealis]], [[Hercules]], and [[Lyra]]. This asterism and the coordinate of its determinative star was first recorded in the Western Han ''Shishi xingjing'' (Master Shi’s Star Canon, 石氏星經).

	== Concordance, Etymology, History ==		== Concordance, Etymology, History ==
Line 28:		Line 28:
	\|-		\|-
	\| 1st/Determinative		\| 1st/Determinative
	\| ~~upsilon~~ CrB		\| Upsilon CrB
	\| xi CrB		\| Xi CrB
	\| xi CrB		\| Xi CrB
	\| xi CrB		\| Xi CrB
	\| xi CrB		\| Xi CrB
	\|~~zeta~~ Her		\|Zeta Her
	\|-		\|-
	\| 2nd		\| 2nd
	\| xi CrB		\| Xi CrB
	\| ~~zeta~~ Her		\| Zeta Her
	\| ~~nu2~~ Her		\| Nu<sup>2</sup> Her
	\| ~~zeta~~ Her		\| Zeta Her
	\| ~~nu1~~ Her		\| Nu<sup>1</sup> Her
	\|53 Her		\|53 Her
	\|-		\|-
	\| 3rd		\| 3rd
	\| ~~zeta~~ Her		\| Zeta Her
	\| ~~epsilon~~ Her		\| Epsilon Her
	\| ~~zeta~~ Her		\| Zeta Her
	\| 53 Her		\| 53 Her
	\| ~~zeta~~ Her		\| Zeta Her
	\|~~epsilon~~ Her		\|Epsilon Her
	\|-		\|-
	\|4th		\|4th
	\|53 Her		\|53 Her
	\|d Her		\|d Her
	\|~~epsilon~~ Her		\|Epsilon Her
	\|~~epsilon~~ Her		\|Epsilon Her
	\|~~epsilon~~ Her		\|Epsilon Her
	\|u her		\|u her
	\|-		\|-
	\|5th		\|5th
	\| ~~epsilon~~ Her		\| Epsilon Her
	\| 61 Her		\| 61 Her
	\| d Her		\| d Her
Line 79:		Line 79:
	\|Her 86178		\|Her 86178
	\|HIP 85382		\|HIP 85382
	\|~~theta~~ Her		\|Theta Her
	\|~~theta~~ Her		\|Theta Her
	\|~~theta~~ Her		\|Theta Her
	\|-		\|-
	\|8th		\|8th
	\|u her		\|u her
	\|?		\|?
	\|~~theta~~ Her		\|Theta Her
	\|~~kappa~~ Lyr		\|Kappa Lyr
	\|~~kappa~~ Lyr		\|Kappa Lyr
	\|HIP 88836		\|HIP 88836
	\|-		\|-
	\|9th		\|9th
	\|~~theta~~ Her		\|Theta Her
	\|~~theta~~ Her		\|Theta Her
	\|f Her		\|f Her
	\|		\|
	\|mu Lyr		\|Mu Lyr
	\|~~kappa~~ Lyr		\|Kappa Lyr
	\|}		\|}

Sushoff at 10:24, 22 January 2026

2026-01-22T10:24:53Z

← Older revision		Revision as of 10:24, 22 January 2026
Line 1:		Line 1:
	{{DISPLAYTITLE: Tianji (天纪)}}		{{DISPLAYTITLE: Tianji (天纪)}}
			Authors: IAU-WGSN Etymology Group, {{PAGEAUTHORS}}
			----
	Tiān Jì (Celestial Discipline, 天紀) consists of nine stars forming an east–west alignment that extends across the modern constellations ''[[Corona Borealis]]'', ''[[Hercules]]'', and ''[[Lyra]]''. This asterism and the coordinate of its determinative star was first recorded in the Western Han ''Shishi xingjing'' (Master Shi’s Star Canon, 石氏星經).		Tiān Jì (Celestial Discipline, 天紀) consists of nine stars forming an east–west alignment that extends across the modern constellations ''[[Corona Borealis]]'', ''[[Hercules]]'', and ''[[Lyra]]''. This asterism and the coordinate of its determinative star was first recorded in the Western Han ''Shishi xingjing'' (Master Shi’s Star Canon, 石氏星經).

Sushoff at 07:06, 9 December 2025

2025-12-09T07:06:12Z

← Older revision		Revision as of 07:06, 9 December 2025
Line 1:		Line 1:
	{{DISPLAYTITLE: Tianji (天纪)}}		{{DISPLAYTITLE: Tianji (天纪)}}

	Tiān Jì (Celestial Discipline, 天紀) consists of nine stars forming an east–west alignment that extends across the modern constellations ''Corona Borealis'', ''Hercules'', and ''Lyra''. This asterism and the coordinate of its determinative star was first recorded in the Western Han ''Shishi xingjing'' (Master Shi’s Star Canon, 石氏星經).		Tiān Jì (Celestial Discipline, 天紀) consists of nine stars forming an east–west alignment that extends across the modern constellations ''[[Corona Borealis]]'', ''[[Hercules]]'', and ''[[Lyra]]''. This asterism and the coordinate of its determinative star was first recorded in the Western Han ''Shishi xingjing'' (Master Shi’s Star Canon, 石氏星經).

	== Concordance, Etymology, History ==		== Concordance, Etymology, History ==

Boshunyang: /* Star Name Discussion (IAU) */

2025-12-06T11:35:40Z

Star Name Discussion (IAU)

← Older revision		Revision as of 11:35, 6 December 2025
Line 124:		Line 124:


	== Star Name Discussion (IAU) ==		== Star Name Discussion (IAU) ==
	In 2025, the name of the historical constellation Bā Gǔ (八穀) was suggested to WGSN to be used for one of the stars in this constellation based on a review of Chinese cultural astronomy literature. Discussion focused on the bright star Delta Aurigae, which was the determinative star following multiple published versions of the asterism.

	~~WGSN adopted the name "Bagu" for the bright star designated Delta Aurigae (HR 2077, HD 40035, HIP 28358) on 12 November 2025.~~

	Bagu is a bright (V=3.72 mag) star at distance 43 parsecs. Since the middle of the 20th century, the star served as a Morgan-Keenan spectral standard for K0 giants. The star has a diameter about 12 times larger than that of our Sun. The star is a single-lined spectroscopic binary catalogued in SBC9, i.e. it has a faint companion on a period of 3.51 years (Griffin 2009). Specifically the name is applied to the primary Aa.

	==References ==		==References ==

Boshunyang: /* Maps (Gallery) */

2025-12-06T11:35:15Z

Maps (Gallery)

← Older revision		Revision as of 11:35, 6 December 2025
Line 106:		Line 106:
	!same in Stellarium 25.3		!same in Stellarium 25.3
	\|-		\|-
	\|		\|[[File:Tianji on Cheonsang Yeolcha Bunyajido.jpg\|thumb\|Tianji on ''Cheonsang Yeolcha Bunyajido'']]
	\|		\|[[File:Tianji before Tang Dynasty Reconstructed by Boshun Yang.jpg\|thumb\|Tianji before Tang Dynasty Reconstructed by Boshun Yang(2023)]]
	\|		\|[[File:Tianji before Tang Dynasty in Stellarium.jpg\|thumb\|Tianji before Tang Dynasty in Stellarium]]
	\|-		\|-
	\|[[File:Tianji on Suzhou Star Map.jpg\|thumb\|Tianji on Suzhou Star Map]]		\|[[File:Tianji on Suzhou Star Map.jpg\|thumb\|Tianji on Suzhou Star Map]]
			\|[[File:Tianji in Northern Song Dynasty ( based on 1052 obserrvation) Reconstructed by PAN Nai-.jpg\|thumb\|Tianji in Northern Song Dynasty ( based on 1052 obserrvation) Reconstructed by PAN Nai (2009)]]
			\|[[File:Tianji in Northern Song Dynasty in Stellarium.jpg\|thumb\|Tianji in Northern Song Dynasty in Stellarium]]
			\|-
	\|		\|
	\|		\|[[File:Tianji in late Yuan Dynasty (1363 or so) Reconstructed by Boshun Yang.jpg\|thumb\|Tianji in late Yuan Dynasty (1363 or so) Reconstructed by Boshun Yang (2023)]]
			\|[[File:Tianji in late Yuan Dynasty (1363 or so) in Stellrium.jpg\|thumb\|Tianji in late Yuan Dynasty (1363 or so) in Stellrium]]
	\|-		\|-
	\|		\|[[File:Tianji on 18th century star map.jpg\|thumb\|Tianji on 18th century star map]]
	\|		\|[[File:Tianji in 18th Century Reconstructed by YI Shitong.jpg\|thumb\|Tianji in 18th Century Reconstructed by YI Shitong (1981)]]
	\|		\|[[File:Tianji in 18th Century in Stellarium.jpg\|thumb\|Tianji in 18th Century in Stellarium]]
	\|}		\|}

Boshunyang: /* Maps (Gallery) */

2025-12-06T11:12:46Z

Maps (Gallery)

← Older revision		Revision as of 11:12, 6 December 2025
Line 106:		Line 106:
	!same in Stellarium 25.3		!same in Stellarium 25.3
	\|-		\|-
	\|~~[[File:Bagu in Cheonsang Yeolcha Bunyajido.jpg\|thumb\|Bagu in ''Cheonsang Yeolcha Bunyajido'']]~~		\|
	\|~~[[File:Bagu before Tang Dynasty Reconstructed by Boshun Yang (2023) .jpg\|thumb\|Bagu before Tang Dynasty Reconstructed by Boshun Yang (2023)]]~~		\|
	\|~~[[File:Bagu before Tang dynasty demonstrated in Stellarium.jpg\|thumb\|Bagu before Tang dynasty demonstrated in Stellarium]]~~		\|
	\|-		\|-
	\|[[File:~~Bagu in~~ Suzhou Star Map.jpg\|thumb\|~~Bagu in~~ Suzhou Star Map]]		\|[[File:Tianji on Suzhou Star Map.jpg\|thumb\|Tianji on Suzhou Star Map]]
	\|~~[[File:Bagu in Song Dynasty Reconstructed by Pan Nai (2009).jpg\|thumb\|Bagu in Song Dynasty Reconstructed by Pan Nai (2009)]]~~		\|
	\|~~[[File:Bagu in Song dynasty demonstrated in Stellarium.jpg\|thumb\|Bagu in Song dynasty demonstrated in Stellarium]]~~		\|
	\|-		\|-
	\|~~[[File:Bagu in Jesuits Star Map in 17th Century.jpg\|thumb\|Bagu in Jesuits Star Map in 17th Century]]~~		\|
	\|~~[[File:Bagu Reconstructed by Yi Shitong (1981) based on Qing Star Catalogue in 18th Century.jpg\|thumb\|Bagu Reconstructed by Yi Shitong (1981) based on Qing Star Catalogue in 18th Century]]~~		\|
	\|~~[[File:Bagu in 18th century demonstrated in Stellarium.jpg\|thumb\|Bagu in 18th century demonstrated in Stellarium]]~~		\|
	\|}		\|}

Boshunyang: /* Identification of stars */

2025-12-06T10:51:31Z

Identification of stars

← Older revision		Revision as of 10:51, 6 December 2025
Line 13:		Line 13:
	{\| class="wikitable"		{\| class="wikitable"
	\|+		\|+
	!Star Names or Orders(~~Traditional/~~Qing)		!Star Names or Orders(Qing)
	!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>		!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: 56.</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: 56.</ref>
	Based on catalogue in 18th century		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[M]. Shanghai: Xuelin Pree. 1989. p226.</ref>		!Pan Nai<ref name=":0">Pan Nai潘鼐. ''Zhongguo Hengxing Guance shi''中国恒星观测史[M]. Shanghai: Xuelin Pree. 1989. p226.</ref>
	based on Xinyixiangfayao Star Map		based on Huangyou Star Catalogue and Xinyixiangfayao Star Map
	!SUN X. & J. Kistemaker<ref>Sun Xiaochun. & Kistemaker J. ''The Chinese sky during the Han''. Leiden: Brill. 1997, Pp241-6.</ref>		!SUN X. & J. Kistemaker<ref>Sun Xiaochun. & Kistemaker J. ''The Chinese sky during the Han''. Leiden: Brill. 1997, Pp241-6.</ref>
	Han Dynasty		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). 261.</ref>		!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). 261.</ref>
	before Tang dynasty		before Tang dynasty
			!Boshun Yang<ref name=":1" />
			Yuan Dynaty (1363)
	\|-		\|-
	\| 1st/Determinative		\| 1st/Determinative
	\| ~~delta Aur~~		\| upsilon CrB
	\| ~~delta Aur~~		\| xi CrB
	\| ~~beta Cam~~		\| xi CrB
	\| ~~beta Cam~~		\| xi CrB
	\| ~~delta Aur~~		\| xi CrB
			\|zeta Her
	\|-		\|-
	\| 2nd		\| 2nd
	\| xi ~~Aur~~		\| xi CrB
	\| ~~xi Aur~~		\| zeta Her
	\| ~~HIP 21601~~		\| nu2 Her
	\| ~~17 Cam~~		\| zeta Her
	\| ~~16 Cam~~		\| nu1 Her
			\|53 Her
	\|-		\|-
	\| 3rd		\| 3rd
	\| ~~26 Cam~~		\| zeta Her
	\| ~~26 Cam~~		\| epsilon Her
	\| ~~HIP 20376~~		\| zeta Her
	\| ~~16 Cam~~		\| 53 Her
	\| ~~beta Cam~~		\| zeta Her
			\|epsilon Her
	\|-		\|-
	\|4th		\|4th
	\|~~17 Cam~~		\|53 Her
	\|~~14 Cam~~		\|d Her
	\|~~HIP 21452~~		\|epsilon Her
	\|~~delta Aur~~		\|epsilon Her
	\|~~alpha Cam~~		\|epsilon Her
			\|u her
	\|-		\|-
	\|5th		\|5th
	\| ~~5 Cam~~		\| epsilon Her
	\| ~~7 Cam~~		\| 61 Her
	\| ~~HIP 22783~~		\| d Her
	\| ~~2 Lyn~~		\| d Her
	\| ~~29997~~		\| d Her
			\|w Her
	\|-		\|-
	\|6th		\|6th
	\|~~7 Cam~~		\|d Her
	\|~~9 Aur~~		\|u her
	\|~~HIP 24017~~		\|w Her
	\|~~1 Lyn~~		\|u her
	\|~~15 Lyn~~		\|u her
			\|HIP 85382
	\|-		\|-
	\|7th		\|7th
	\|~~HIP 24479~~		\|c Her
	\|~~11 Cam~~		\|Her 86178
	\|HIP ~~22626~~		\|HIP 85382
	\|~~12 Lyn~~		\|theta Her
	\|~~7 Cam~~		\|theta Her
			\|theta Her
	\|-		\|-
	\|8th		\|8th
	\|~~31 Cam~~		\|u her
	\|~~31 Cam~~		\|?
	\|HIP ~~24914~~		\|theta Her
	\|~~15 Lyn~~		\|kappa Lyr
	\|~~9 Aur~~		\|kappa Lyr
			\|HIP 88836
			\|-
			\|9th
			\|theta Her
			\|theta Her
			\|f Her
			\|
			\|mu Lyr
			\|kappa Lyr
	\|}		\|}

Boshunyang at 10:17, 6 December 2025

2025-12-06T10:17:29Z

← Older revision		Revision as of 10:17, 6 December 2025
Line 1:		Line 1:
	{{DISPLAYTITLE: Tianji (天纪)}}		{{DISPLAYTITLE: Tianji (天纪)}}
	~~[[File:Bagu profileCard SadeghFaghanpour-IAU-WGSN.jpg\|thumb\|Bagu profile card (CC BY Sadegh Faghanpour for IAU-WGSN).]]~~
	~~[[File:Bagu stickfigure SadeghFaghanpour-IAU-WGSN.jpg\|thumb\|Bagu stickfigure (CC BY Sadegh Faghanpour for IAU-WGSN).]]~~		Tiān Jì (Celestial Discipline, 天紀) consists of nine stars forming an east–west alignment that extends across the modern constellations ''Corona Borealis'', ''Hercules'', and ''Lyra''. This asterism and the coordinate of its determinative star was first recorded in the Western Han ''Shishi xingjing'' (Master Shi’s Star Canon, 石氏星經).
	~~Bā Gǔ~~ ( ~~Eight Kinds of Crops~~, 八穀) ~~is a Chinese constellation consisting~~ of ~~eight~~ stars ~~located within~~ the constellations ~~Lynx~~'','' ~~Auriga~~, and ~~Camelopardalis~~. ~~It belongs to~~ the ~~asterisms introduced by Gan De and originated during~~ the Han ~~dynasty~~.

	== Concordance, Etymology, History ==		== Concordance, Etymology, History ==
	The ~~name Bagu refers to~~ the ~~eight types~~ of ~~staple grains~~. In the ''~~Kaiyuan zhanjing~~'' (''~~Divination Canon~~ of ~~Kaiyuan Reign~~''~~, 開元占經, compiles between 712–718 CE~~)~~, a note appended to the entry for Bagu~~ explains: “The ~~Eight Grains are rice, millet, panicled millet, barley, wheat, soybeans, adzuki beans, and hemp~~.” The ancients believed that observing the ~~asterism~~ ''~~Bagu~~'' ~~could be used to divine~~ the ~~harvest~~ of the ~~year: if one~~ of its stars ~~became invisible~~, ~~it foretold that one type of grain would fail to grow; if~~ the ~~stars appeared dim~~, ~~it signified that all eight grains would suffer a poor harvest~~.		''Tianji'' is also called ''Jì xīng'' (''Decipline Star''). The term ''jì'' (紀) originally denoted “a thread of silk,” later acquiring the metaphorical meanings of “order,” “law,” or “discipline.” Hence, the ''Shishi zan'' (''Commentary'' of ''Shi'') explains: “The nine stars of ''Tiān Jì'' regulate litigation.” The ancients believed that by observing this asterism, one could divine whether the legal order of the empire remained upright and just.

			Another interpretation, however, regarded the nine stars of ''Tianji'' as representing the Nine States (which are the major component of ancient China). According to this view, any unusual phenomenon observed in the asterism—such as brightening, dimming, or disappearance—portended terrestrial disasters such as earthquakes or mountain collapses.

			Because most of its component stars are faint, the ancient astronomers considered any abnormal changes in their visibility—whether excessive brightness, darkness, or disappearance—as inauspicious omens.

	=== Identification of stars ===		=== Identification of stars ===
	{\| class="wikitable"		{\| class="wikitable"

Boshunyang: Created page with "{{DISPLAYTITLE: Tianji (天纪)}} Bagu profile card (CC BY Sadegh Faghanpour for IAU-WGSN). Bagu stickfigure (CC BY Sadegh Faghanpour for IAU-WGSN). Bā Gǔ ( Eight Kinds of Crops, 八穀) is a Chinese constellation consisting of eight stars located within the constellations Lynx'','' Auriga, and Camelopardalis. It belongs to the asterisms introduce..."

2025-12-06T10:15:21Z

Created page with "{{DISPLAYTITLE: Tianji (天纪)}} thumb|Bagu profile card (CC BY Sadegh Faghanpour for IAU-WGSN). thumb|Bagu stickfigure (CC BY Sadegh Faghanpour for IAU-WGSN). Bā Gǔ ( Eight Kinds of Crops, 八穀) is a Chinese constellation consisting of eight stars located within the constellations Lynx'','' Auriga, and Camelopardalis. It belongs to the asterisms introduce..."

New page

{{DISPLAYTITLE: Tianji (天纪)}}
[[File:Bagu profileCard SadeghFaghanpour-IAU-WGSN.jpg|thumb|Bagu profile card (CC BY Sadegh Faghanpour for IAU-WGSN).]]
[[File:Bagu stickfigure SadeghFaghanpour-IAU-WGSN.jpg|thumb|Bagu stickfigure (CC BY Sadegh Faghanpour for IAU-WGSN).]]
Bā Gǔ ( Eight Kinds of Crops, 八穀) is a Chinese constellation consisting of eight stars located within the constellations Lynx'','' Auriga, and Camelopardalis. It belongs to the asterisms introduced by Gan De and originated during the Han dynasty.

== Concordance, Etymology, History ==
The name Bagu refers to the eight types of staple grains. In the ''Kaiyuan zhanjing'' (''Divination Canon of Kaiyuan Reign'', 開元占經, compiles between 712–718 CE), a note appended to the entry for Bagu explains: “The Eight Grains are rice, millet, panicled millet, barley, wheat, soybeans, adzuki beans, and hemp.” The ancients believed that observing the asterism ''Bagu'' could be used to divine the harvest of the year: if one of its stars became invisible, it foretold that one type of grain would fail to grow; if the stars appeared dim, it signified that all eight grains would suffer a poor harvest.

=== Identification of stars ===
{| class="wikitable"
|+
!Star Names or Orders(Traditional/Qing)
!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: 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[M]. Shanghai: Xuelin Pree. 1989. p226.</ref>
based on Xinyixiangfayao Star Map
!SUN X. & J. Kistemaker<ref>Sun Xiaochun. & Kistemaker J. ''The Chinese sky during the Han''. Leiden: Brill. 1997, Pp241-6.</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). 261.</ref>
before Tang dynasty
|-
| 1st/Determinative
| delta Aur
| delta Aur
| beta Cam
| beta Cam
| delta Aur
|-
| 2nd
| xi Aur
| xi Aur
| HIP 21601
| 17 Cam
| 16 Cam
|-
| 3rd
| 26 Cam
| 26 Cam
| HIP 20376
| 16 Cam
| beta Cam
|-
|4th
|17 Cam
|14 Cam
|HIP 21452
|delta Aur
|alpha Cam
|-
|5th
| 5 Cam
| 7 Cam
| HIP 22783
| 2 Lyn
| 29997
|-
|6th
|7 Cam
|9 Aur
|HIP 24017
|1 Lyn
|15 Lyn
|-
|7th
|HIP 24479
|11 Cam
|HIP 22626
|12 Lyn
|7 Cam
|-
|8th
|31 Cam
|31 Cam
|HIP 24914
|15 Lyn
|9 Aur
|}

=== Maps (Gallery) ===
{| class="wikitable"
|+
!historical map
!modern identification
!same in Stellarium 25.3
|-
|[[File:Bagu in Cheonsang Yeolcha Bunyajido.jpg|thumb|Bagu in ''Cheonsang Yeolcha Bunyajido'']]
|[[File:Bagu before Tang Dynasty Reconstructed by Boshun Yang (2023) .jpg|thumb|Bagu before Tang Dynasty Reconstructed by Boshun Yang (2023)]]
|[[File:Bagu before Tang dynasty demonstrated in Stellarium.jpg|thumb|Bagu before Tang dynasty demonstrated in Stellarium]]
|-
|[[File:Bagu in Suzhou Star Map.jpg|thumb|Bagu in Suzhou Star Map]]
|[[File:Bagu in Song Dynasty Reconstructed by Pan Nai (2009).jpg|thumb|Bagu in Song Dynasty Reconstructed by Pan Nai (2009)]]
|[[File:Bagu in Song dynasty demonstrated in Stellarium.jpg|thumb|Bagu in Song dynasty demonstrated in Stellarium]]
|-
|[[File:Bagu in Jesuits Star Map in 17th Century.jpg|thumb|Bagu in Jesuits Star Map in 17th Century]]
|[[File:Bagu Reconstructed by Yi Shitong (1981) based on Qing Star Catalogue in 18th Century.jpg|thumb|Bagu Reconstructed by Yi Shitong (1981) based on Qing Star Catalogue in 18th Century]]
|[[File:Bagu in 18th century demonstrated in Stellarium.jpg|thumb|Bagu in 18th century demonstrated in Stellarium]]
|}

== Star Name Discussion (IAU) ==
In 2025, the name of the historical constellation Bā Gǔ (八穀) was suggested to WGSN to be used for one of the stars in this constellation based on a review of Chinese cultural astronomy literature. Discussion focused on the bright star Delta Aurigae, which was the determinative star following multiple published versions of the asterism.

WGSN adopted the name "Bagu" for the bright star designated Delta Aurigae (HR 2077, HD 40035, HIP 28358) on 12 November 2025.

Bagu is a bright (V=3.72 mag) star at distance 43 parsecs. Since the middle of the 20th century, the star served as a Morgan-Keenan spectral standard for K0 giants. The star has a diameter about 12 times larger than that of our Sun. The star is a single-lined spectroscopic binary catalogued in SBC9, i.e. it has a faint companion on a period of 3.51 years (Griffin 2009). Specifically the name is applied to the primary Aa.

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

[[Category:Asterism ]]
[[Category:Constellation ]]
[[Category:IAU-Star Name]]
[[Category:Eurasia]]
[[Category:East Asian]]
[[Category:Chinese ]]
[[Category:Aur ]][[Category:Cam ]]