Deltoton - Revision history

IanRidpath: Capitalization and corrected typo

2026-02-19T14:34:33Z

Capitalization and corrected typo

← Older revision		Revision as of 14:34, 19 February 2026
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	[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]		[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]
	[[File:Deltoton profile stickfigure.jpeg\|thumb\|WGSN star name "Deltoton", profile stickfigure, created by M. Sadegh Faghanpour (IAU WGSN).]]		[[File:Deltoton profile stickfigure.jpeg\|thumb\|WGSN star name "Deltoton", profile stickfigure, created by M. Sadegh Faghanpour (IAU WGSN).]]
	Deltoton (Δελτωτόν; the letter Delta: Δ) is a modern star name for δ Tri (~~delta~~ Trianguli) based on an ancient Greek name variant for the constellation [[Triangulum]], probably the original one.		Deltoton (Δελτωτόν; the letter Delta: Δ) is a modern star name for δ Tri (Delta Trianguli) based on an ancient Greek name variant for the constellation [[Triangulum]], probably the original one.

	==Etymology and History==		==Etymology and History==
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	The name was discussed and approved by the IAU WGSN in 2025. The brightest stars in the constellation Triangulum were already named with Arabic names. WGSN chose to name δ Tri with this name because of the obvious pun.		The name was discussed and approved by the IAU WGSN in 2025. The brightest stars in the constellation Triangulum were already named with Arabic names. WGSN chose to name δ Tri with this name because of the obvious pun.

	δ Tri is a yellow dwarf star like our Sun but a bit smaller in mass and diameter. Only 35 light years away, it ranges among the nearest neighbours of the ~~solar system~~. Therefore, it is the only star in the sky where we can directly see the ~~propoer~~ motion within the ~~recent ~2000~~ years: Ptolemy describes δ Tri as ὁ μέσος αὐτῶν (the middle one of the three at the base of the triangle), as it was really in the middle between β and γ Tri. Yet, as of 2025, we find δ Tri closer to γ Tri (which would even count as "double star" in Ptolemy's terminology).		δ Tri is a yellow dwarf star like our Sun but a bit smaller in mass and diameter. Only 35 light years away, it ranges among the nearest neighbours of the Solar System. Therefore, it is the only star in the sky where we can directly see the proper motion within the past 2,000 years or so: Ptolemy describes δ Tri as ὁ μέσος αὐτῶν (the middle one of the three at the base of the triangle), as it was really in the middle between β and γ Tri. Yet, as of 2025, we find δ Tri closer to γ Tri (which would even count as "double star" in Ptolemy's terminology).

	== Weblinks ==		== Weblinks ==

Sushoff at 15:55, 20 January 2026

2026-01-20T15:55:44Z

← Older revision		Revision as of 15:55, 20 January 2026
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	{{DISPLAYTITLE:Deltoton (Δελτωτόν)}}		{{DISPLAYTITLE:Deltoton (Δελτωτόν)}}
			Authors: {{PAGEAUTHORS}}
			----
	[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]		[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]
	[[File:Deltoton profile stickfigure.jpeg\|thumb\|WGSN star name "Deltoton", profile stickfigure, created by M. Sadegh Faghanpour (IAU WGSN).]]		[[File:Deltoton profile stickfigure.jpeg\|thumb\|WGSN star name "Deltoton", profile stickfigure, created by M. Sadegh Faghanpour (IAU WGSN).]]

Sushoff at 01:36, 19 July 2025

2025-07-19T01:36:52Z

← Older revision		Revision as of 01:36, 19 July 2025
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	{{DISPLAYTITLE:Deltoton (Δελτωτόν)}}		{{DISPLAYTITLE:Deltoton (Δελτωτόν)}}
	[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]		[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]
			[[File:Deltoton profile stickfigure.jpeg\|thumb\|WGSN star name "Deltoton", profile stickfigure, created by M. Sadegh Faghanpour (IAU WGSN).]]
	Deltoton (Δελτωτόν; the letter Delta: Δ) is a modern star name for δ Tri (delta Trianguli) based on an ancient Greek name variant for the constellation [[Triangulum]], probably the original one.		Deltoton (Δελτωτόν; the letter Delta: Δ) is a modern star name for δ Tri (delta Trianguli) based on an ancient Greek name variant for the constellation [[Triangulum]], probably the original one.

Sushoff at 01:03, 19 July 2025

2025-07-19T01:03:36Z

← Older revision		Revision as of 01:03, 19 July 2025
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	==Mythology==		==Mythology==
	The ancient Greek author Aratus (4th century BCE) starts his didactic poem with a dedication to the mighty god (Dios). Yet, he mentions the constellation "Triangulum" in a later verse.		The ancient Greek author Aratus (4th century BCE) starts his didactic poem with a dedication to the mighty god (Dios). Yet, he mentions the constellation "Triangulum" in a later verse.
			[[File:Deltoton profileWGSN.jpeg\|alt=WGSN star name profile card "Deltoton"\|thumb\|WGSN star name "Deltoton", profile card, created by M. Sadegh Faghanpour (IAU WGSN).]]

	==IAU Working Group on Star Names==		==IAU Working Group on Star Names==
	The name was discussed and approved by the IAU WGSN in 2025. The brightest stars in the constellation Triangulum were already named with Arabic names. WGSN chose to name δ Tri with this name because of the obvious pun.		The name was discussed and approved by the IAU WGSN in 2025. The brightest stars in the constellation Triangulum were already named with Arabic names. WGSN chose to name δ Tri with this name because of the obvious pun.

			δ Tri is a yellow dwarf star like our Sun but a bit smaller in mass and diameter. Only 35 light years away, it ranges among the nearest neighbours of the solar system. Therefore, it is the only star in the sky where we can directly see the propoer motion within the recent ~2000 years: Ptolemy describes δ Tri as ὁ μέσος αὐτῶν (the middle one of the three at the base of the triangle), as it was really in the middle between β and γ Tri. Yet, as of 2025, we find δ Tri closer to γ Tri (which would even count as "double star" in Ptolemy's terminology).

	== Weblinks ==		== Weblinks ==

Sushoff at 18:01, 22 June 2025

2025-06-22T18:01:15Z

← Older revision		Revision as of 18:01, 22 June 2025
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	{{DISPLAYTITLE:Deltoton (Δελτωτόν)}}		{{DISPLAYTITLE:Deltoton (Δελτωτόν)}}
	[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]		[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]
	Deltoton (Δελτωτόν; the letter Delta: Δ) is a modern star name based on an ancient Greek name variant for the constellation [[Triangulum]], probably the original one.		Deltoton (Δελτωτόν; the letter Delta: Δ) is a modern star name for δ Tri (delta Trianguli) based on an ancient Greek name variant for the constellation [[Triangulum]], probably the original one.

	==Etymology and History==		==Etymology and History==

Sushoff at 17:59, 22 June 2025

2025-06-22T17:59:52Z

← Older revision		Revision as of 17:59, 22 June 2025
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	{{DISPLAYTITLE:Deltoton (Δελτωτόν)}}		{{DISPLAYTITLE:Deltoton (Δελτωτόν)}}
	[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]		[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]
	Deltoton (Δελτωτόν; the letter Delta: Δ) is a modern star name based on an ancient Greek name variant for the constellation ~~triangulum~~, probably the original one.		Deltoton (Δελτωτόν; the letter Delta: Δ) is a modern star name based on an ancient Greek name variant for the constellation [[Triangulum]], probably the original one.

	==Etymology and History==		==Etymology and History==
	"Delta" is the first letter in the ancient Greek term for "dios", the highest god who possesses and rules the stars. In early uranographies, this triangle was considered a sign of the divinity of the starry sky, a divine inscription "written in the stars".		"Delta" is the first letter in the ancient Greek term for "dios", the highest god who possesses and rules the stars. In early uranographies, this triangle was considered a sign of the divinity of the starry sky. The letter Delta was considered a divine inscription "written in the stars".

	==Mythology==		==Mythology==

Sushoff at 11:43, 17 June 2025

2025-06-17T11:43:41Z

← Older revision		Revision as of 11:43, 17 June 2025
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			{{DISPLAYTITLE:Deltoton (Δελτωτόν)}}
	[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]		[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]
	Deltoton (Δελτωτόν; the letter Delta: Δ) is a modern star name based on an ancient Greek name variant for the constellation triangulum, probably the original one.		Deltoton (Δελτωτόν; the letter Delta: Δ) is a modern star name based on an ancient Greek name variant for the constellation triangulum, probably the original one.

Sushoff at 11:22, 17 June 2025

2025-06-17T11:22:36Z

← Older revision		Revision as of 11:22, 17 June 2025
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	[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]		[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]
	Deltoton (Δελτωτόν; the letter Delta: Δ) is an ancient Greek name variant for the constellation triangulum, probably the original one.		Deltoton (Δελτωτόν; the letter Delta: Δ) is a modern star name based on an ancient Greek name variant for the constellation triangulum, probably the original one.

	==Etymology and History==		==Etymology and History==

Sushoff at 11:22, 17 June 2025

2025-06-17T11:22:08Z

← Older revision		Revision as of 11:22, 17 June 2025
Line 1:		Line 1:
			[[File:Tri Duerer.JPG\|thumb\|Triangulum in Dürer (1515) named "Deltoton".]]
	Deltoton (Δελτωτόν; the letter Delta: Δ) is an ancient Greek name variant for the constellation triangulum, probably the original one.		Deltoton (Δελτωτόν; the letter Delta: Δ) is an ancient Greek name variant for the constellation triangulum, probably the original one.

Line 5:		Line 6:

	==Mythology==		==Mythology==
			The ancient Greek author Aratus (4th century BCE) starts his didactic poem with a dedication to the mighty god (Dios). Yet, he mentions the constellation "Triangulum" in a later verse.

	==IAU Working Group on Star Names==		==IAU Working Group on Star Names==
	The name was discussed and approved by the IAU WGSN in 2025. The brightest stars in the constellation Triangulum were already named with Arabic names. WGSN chose to name δ Tri with this name because of the obvious pun.		The name was discussed and approved by the IAU WGSN in 2025. The brightest stars in the constellation Triangulum were already named with Arabic names. WGSN chose to name δ Tri with this name because of the obvious pun.


	== Weblinks ==		== Weblinks ==
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	* [[References\|References (general)]]		* [[References\|References (general)]]
	* [[References (Medieval and Early Modern)\|References (early modern)]]		* [[References (Medieval and Early Modern)\|References (early modern)]]
	* Ian Ridpath's website ([http://ianridpath.com/startales Star Tales] )

	[[Category:constellation]]		[[Category:constellation]]

Sushoff: Created page with "Deltoton (Δελτωτόν; the letter Delta: Δ) is an ancient Greek name variant for the constellation triangulum, probably the original one. ==Etymology and History== "Delta" is the first letter in the ancient Greek term for "dios", the highest god who possesses and rules the stars. In early uranographies, this triangle was considered a sign of the divinity of the starry sky, a divine inscription "written in the stars". ==Mythology== ==IAU Working Group on Star Na..."

2025-06-17T11:19:56Z

Created page with "Deltoton (Δελτωτόν; the letter Delta: Δ) is an ancient Greek name variant for the constellation triangulum, probably the original one. ==Etymology and History== "Delta" is the first letter in the ancient Greek term for "dios", the highest god who possesses and rules the stars. In early uranographies, this triangle was considered a sign of the divinity of the starry sky, a divine inscription "written in the stars". ==Mythology== ==IAU Working Group on Star Na..."

New page

Deltoton (Δελτωτόν; the letter Delta: Δ) is an ancient Greek name variant for the constellation triangulum, probably the original one.

==Etymology and History==
"Delta" is the first letter in the ancient Greek term for "dios", the highest god who possesses and rules the stars. In early uranographies, this triangle was considered a sign of the divinity of the starry sky, a divine inscription "written in the stars".

==Mythology==

==IAU Working Group on Star Names==
The name was discussed and approved by the IAU WGSN in 2025. The brightest stars in the constellation Triangulum were already named with Arabic names. WGSN chose to name δ Tri with this name because of the obvious pun.

== Weblinks ==

*

== Reference ==
* [[References|References (general)]]
* [[References (Medieval and Early Modern)|References (early modern)]]
* Ian Ridpath's website ([http://ianridpath.com/startales Star Tales] )

[[Category:constellation]]
[[Category:Star Name‏‎]]
[[Category:IAU-Star Name‏‎]]
[[Category:Eurasia]]
[[Category:European]]
[[Category:Ancient Greek]]