Tusizuo: Difference between revisions
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[[File:Tusizuo profile stickfigure.jpeg|alt=WGSN profile card - map of Tusizuo|thumb|WGSN star name "Tusizuo", profile stickfigure, created by M. Sadegh Faghanpour (IAU WGSN).]] |
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[[File:Tusi and Bodu on Dunhuang Star Map.jpg|thumb|Tusi and Bodu on Dunhuang Star Map]] |
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Tusizuo is a modern star name adopted to the IAU-Catalog of Star Names in 2025 to memorize the historical constellation Tú Sì (屠肆, "Butcher's Shop"). |
Tusizuo, The Left Star of the Butcher Shop, is a modern star name adopted to the IAU-Catalog of Star Names in 2025 for the star 109 Her in [[Hercules]] to memorize the historical Chinese constellation [[Tusi|Tú Sì (屠肆]], "Butcher's Shop") in the superconstellation of Tianshi, The Heavenly Market. |
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==Etymology and History== |
== Etymology and History== |
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The old constellation 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. Among these two stars, one is named "the left" and the other "the right one". |
[[File:Tusi and Bodu on Dunhuang Star Map.jpg|thumb|Tusi and Bodu on Dunhuang Star Map]] The old constellation 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. Among these two stars, one is named "the left" and the other "the right one". |
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==IAU Working Group on Star Names== |
==IAU Working Group on Star Names== |
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[[File:Tusizuo profileWGSN.jpeg|alt=WGSN profile card of Tusizuo|thumb|WGSN star name "Tusizuo", profile card, created by M. Sadegh Faghanpour (IAU WGSN).]] |
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The constellation name was discussed and approved by the IAU WGSN in 2025. 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 |
The constellation name was discussed and approved by the IAU WGSN in 2025. 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 109 Her is "the left one in Tusi", in Chinese "Tusizuo", so WGSN adopts this name. |
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109 Her is a red giant star of one solar mass, so it displays what our Sun will look like in roughly 5 billion years: the entire mass filling a sphere with roughly twelve solar radii. The star is at a distance of 121 light years, so the light that was observed in the year of WGSN-naming left the star's surface one year before Einstein published his theory of special relativity and the fundamental equation of the photoelectric effect for which he obtained the Nobel prize. |
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[[Category:Single star-asterism]] |
[[Category:Single star-asterism]] |
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Latest revision as of 23:02, 18 July 2025
Tusizuo, The Left Star of the Butcher Shop, is a modern star name adopted to the IAU-Catalog of Star Names in 2025 for the star 109 Her in Hercules to memorize the historical Chinese constellation Tú Sì (屠肆, "Butcher's Shop") in the superconstellation of Tianshi, The Heavenly Market.
Etymology and History
The old constellation 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. Among these two stars, one is named "the left" and the other "the right one".
Mythology
IAU Working Group on Star Names
The constellation name was discussed and approved by the IAU WGSN in 2025. 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 109 Her is "the left one in Tusi", in Chinese "Tusizuo", so WGSN adopts this name.
109 Her is a red giant star of one solar mass, so it displays what our Sun will look like in roughly 5 billion years: the entire mass filling a sphere with roughly twelve solar radii. The star is at a distance of 121 light years, so the light that was observed in the year of WGSN-naming left the star's surface one year before Einstein published his theory of special relativity and the fundamental equation of the photoelectric effect for which he obtained the Nobel prize.
