Bagu - Revision history

IanRidpath: Typo

2026-02-18T17:55:37Z

Typo

← Older revision		Revision as of 17:55, 18 February 2026
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	== 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.		The name Bagu refers to the eight types of staple grains. In the ''Kaiyuan zhanjing'' (''Divination Canon of Kaiyuan Reign'', 開元占經, compiled 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 ===		=== Identification of stars ===

IanRidpath: Capitalization

2026-02-18T17:54:42Z

Capitalization

← Older revision		Revision as of 17:54, 18 February 2026
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	[[File:Bagu profileCard SadeghFaghanpour-IAU-WGSN.jpg\|thumb\|Bagu profile card (CC BY Sadegh Faghanpour for IAU-WGSN).]]		[[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).]]		[[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.		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 ==
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	\|-		\|-
	\| 1st/Determinative		\| 1st/Determinative
	\| ~~delta~~ Aur		\| Delta Aur
	\| ~~delta~~ Aur		\| Delta Aur
	\| ~~beta~~ Cam		\| Beta Cam
	\| ~~beta~~ Cam		\| Beta Cam
	\| ~~delta~~ Aur		\| Delta Aur
	\|-		\|-
	\| 2nd		\| 2nd
	\| xi Aur		\| Xi Aur
	\| xi Aur		\| Xi Aur
	\| HIP 21601		\| HIP 21601
	\| 17 Cam		\| 17 Cam
Line 42:		Line 42:
	\| HIP 20376		\| HIP 20376
	\| 16 Cam		\| 16 Cam
	\| ~~beta~~ Cam		\| Beta Cam
	\|-		\|-
	\|4th		\|4th
Line 48:		Line 48:
	\|14 Cam		\|14 Cam
	\|HIP 21452		\|HIP 21452
	\|~~delta~~ Aur		\|Delta Aur
	\|~~alpha~~ Cam		\|Alpha Cam
	\|-		\|-
	\|5th		\|5th
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	\|[[File:Bagu in Song dynasty demonstrated in Stellarium.jpg\|thumb\|Bagu in Song dynasty demonstrated in Stellarium]]		\|[[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 in Jesuits Star Map in 17th Century.jpg\|thumb\|Bagu in Jesuit Star Map of 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 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]]		\|[[File:Bagu in 18th century demonstrated in Stellarium.jpg\|thumb\|Bagu in 18th century demonstrated in Stellarium]]

Sushoff at 06:07, 17 January 2026

2026-01-17T06:07:57Z

← Older revision		Revision as of 06:07, 17 January 2026
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	{{DISPLAYTITLE: Bagu (八谷)}}		{{DISPLAYTITLE: Bagu (八谷)}}
			Authors: {{PAGEAUTHORS}}
			----
	[[File:Bagu profileCard SadeghFaghanpour-IAU-WGSN.jpg\|thumb\|Bagu profile card (CC BY Sadegh Faghanpour for IAU-WGSN).]]		[[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).]]		[[File:Bagu stickfigure SadeghFaghanpour-IAU-WGSN.jpg\|thumb\|Bagu stickfigure (CC BY Sadegh Faghanpour for IAU-WGSN).]]

Sushoff at 16:53, 16 November 2025

2025-11-16T16:53:46Z

← Older revision		Revision as of 16:53, 16 November 2025
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	[[Category:Asterism ]]		[[Category:Asterism ]]
	[[Category:Constellation ]]		[[Category:Constellation ]]
	[[Category:IAU-Star ~~name~~]]		[[Category:IAU-Star Name]]
	[[Category:Eurasia]]		[[Category:Eurasia]]
	[[Category:East Asian]]		[[Category:East Asian]]
	[[Category:Chinese ]]		[[Category:Chinese ]]
	[[Category:Aur ]][[Category:Cam ]]		[[Category:Aur ]][[Category:Cam ]]

Sushoff at 16:53, 16 November 2025

2025-11-16T16:53:30Z

← Older revision		Revision as of 16:53, 16 November 2025
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	{{DISPLAYTITLE: Bagu (八谷)}}		{{DISPLAYTITLE: Bagu (八谷)}}
			[[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.		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.

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

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

2025-11-15T21:49:23Z

Star Name Discussion (IAU)

← Older revision		Revision as of 21:49, 15 November 2025
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	== Star Name Discussion (IAU) ==		== Star Name Discussion (IAU) ==
	In 2025, the name of the historical constellation ~~"Bagu"~~ was suggested to WGSN to be used for one of the stars in this constellation.		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. ~~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.~~		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.		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 ==

Ericmamajek: added brief summary about star

2025-11-15T21:41:50Z

added brief summary about star

← Older revision		Revision as of 21:41, 15 November 2025
Line 99:		Line 99:

	== Star Name Discussion (IAU) ==		== Star Name Discussion (IAU) ==
	In 2025, the name of the historical constellation "Bagu" was suggested to be used for one of the stars in this constellation.		In 2025, the name of the historical constellation "Bagu" was suggested to WGSN to be used for one of the stars in this constellation.

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

			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.

	==References ==		==References ==

Sushoff at 11:53, 13 November 2025

2025-11-13T11:53:04Z

← Older revision		Revision as of 11:53, 13 November 2025
Line 99:		Line 99:

	== Star Name Discussion (IAU) ==		== Star Name Discussion (IAU) ==
	In ~~202x~~, the name of the historical constellation "~~xxx~~" was suggested to be used for one of the stars in this constellation. ~~...~~		In 2025, the name of the historical constellation "Bagu" was suggested to be used for one of the stars in this constellation.

	Decision: ...		Decision: It was adopted in November 2025 for the star delta Aurigae.

	==References ==		==References ==
Line 112:		Line 112:
	[[Category:East Asian]]		[[Category:East Asian]]
	[[Category:Chinese ]]		[[Category:Chinese ]]
			[[Category:Aur ]][[Category:Cam ]]

Boshunyang at 15:06, 3 November 2025

2025-11-03T15:06:14Z

← Older revision		Revision as of 15:06, 3 November 2025
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	{{DISPLAYTITLE: Bagu (八谷)}}		{{DISPLAYTITLE: Bagu (八谷)}}
	Chinese constellation.
			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.

	=== Identification of stars ===		=== Identification of stars ===
Line 14:		Line 15:
	!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 Xinyixiangfayao Star Map
	~~!Pan Nai<ref>Pan Nai潘鼐. ''Zhongguo Hengxing Guance shi''中国恒星观测史[M]. Shanghai: Xuelin Pree. 2009. p443.</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, 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" />~~
	~~Song Jingyou(1034)~~
	\|-		\|-
	\| 1st/~~4th~~		\| 1st/Determinative
	\| x		\| delta Aur
	\| x		\| delta Aur
	\| x		\| beta Cam
	\| x		\| beta Cam
	\| x		\| delta Aur
	\| x		\|-
	\| x		\| 2nd
			\| xi Aur
			\| xi Aur
			\| HIP 21601
			\| 17 Cam
			\| 16 Cam
			\|-
			\| 3rd
			\| 26 Cam
			\| 26 Cam
			\| HIP 20376
			\| 16 Cam
			\| beta Cam
	\|-		\|-
	\| ~~2nd/3rd~~		\|4th
	\| x		\|17 Cam
	\| x		\|14 Cam
	\| x		\|HIP 21452
	\| x		\|delta Aur
	\| x		\|alpha Cam
	~~\| x~~
	~~\| x~~
	\|-		\|-
	\| ~~3rd/2nd~~		\|5th
	\| x		\| 5 Cam
	\| x		\| 7 Cam
	\| x		\| HIP 22783
	\| x		\| 2 Lyn
	\| x		\| 29997
	~~\| x~~
	~~\| x~~
	\|-		\|-
	\|~~4th/1st~~		\|6th
	\| x		\|7 Cam
	\| x		\|9 Aur
	\| x		\|HIP 24017
	\| x		\|1 Lyn
	\| x		\|15 Lyn
	\| x		\|-
	\| x		\|7th
			\|HIP 24479
			\|11 Cam
			\|HIP 22626
			\|12 Lyn
			\|7 Cam
			\|-
			\|8th
			\|31 Cam
			\|31 Cam
			\|HIP 24914
			\|15 Lyn
			\|9 Aur
	\|}		\|}

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	!historical map		!historical map
	!modern identification		!modern identification
	(Yang 2023)		!same in Stellarium 25.3
	~~!same~~ in Stellarium 24.4		\|-
			\|[[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:~~Kulou on the Cheonsang Yeolcha Bunyajido~~ Star ~~Chart~~.jpg\|~~alt=historical image of Kulou~~ (~~Korea~~)\|thumb\|~~Kulou~~ on ~~the Cheonsang Yeolcha Bunyajido~~ Star ~~Chart~~]]		\|[[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: Created page with "{{DISPLAYTITLE: Bagu (八谷)}} Chinese constellation. == Concordance, Etymology, History == ... === Identification of stars === {| class="wikitable" |+ !Star Names or Orders(Traditional/Qing) !Ho PENG YOKEP.-Y. Ho, “Ancient And Mediaeval Observations of Comets and Novae in Chinese Sources,” ''Vistas in Astronomy'', 5(1962), 127-225. !Yi ShitongYi Shitong伊世同. ''Zhongxi Duizhao Hengxing Tubiao''中西对照恒星图表1950. Beijing: Science P..."

2025-11-03T14:32:56Z

Created page with "{{DISPLAYTITLE: Bagu (八谷)}} Chinese constellation. == Concordance, Etymology, History == ... === 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 P..."

New page

{{DISPLAYTITLE: Bagu (八谷)}}
Chinese constellation.

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

=== 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
!Pan Nai<ref>Pan Nai潘鼐. ''Zhongguo Hengxing Guance shi''中国恒星观测史[M]. Shanghai: Xuelin Pree. 2009. p443.</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, 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
!Boshun Yang<ref name=":1" />
Song Jingyou(1034)
|-
| 1st/4th
| x
| x
| x
| x
| x
| x
| x
|-
| 2nd/3rd
| x
| x
| x
| x
| x
| x
| x
|-
| 3rd/2nd
| x
| x
| x
| x
| x
| x
| x
|-
|4th/1st
| x
| x
| x
| x
| x
| x
| x
|}

=== Maps (Gallery) ===
{| class="wikitable"
|+
!historical map
!modern identification
(Yang 2023)
!same in Stellarium 24.4
|-
|[[File:Kulou on the Cheonsang Yeolcha Bunyajido Star Chart.jpg|alt=historical image of Kulou (Korea)|thumb|Kulou on the Cheonsang Yeolcha Bunyajido Star Chart]]
|
|
|}

== Star Name Discussion (IAU) ==
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 (Chinese)]]

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