Triangulum - Revision history

Sushoff: /* Eratosthenes */

2026-08-26T15:15:18Z

Eratosthenes

← Older revision		Revision as of 15:15, 26 August 2026
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	'''Var. 2 (Δελτωτοῦ):''' This is the constellation above the head of Aries; it is said that the latter is quite dull, and that an easily recognisable letter is located above him, taken from the initial of the name of Zeus, and placed by Hermes who organised arrangement of the constellations. Some say that Egypt derives its triangular shape from the triangle of the constellation, and that the Nile, by this very shape it has given to the contours of the country, not only guarantees its security, but also makes it easier to sow easier and provide a favourable climate for harvesting the fruits of the earth.		'''Var. 2 (Δελτωτοῦ):''' This is the constellation above the head of Aries; it is said that the latter is quite dull, and that an easily recognisable letter is located above him, taken from the initial of the name of Zeus, and placed by Hermes who organised arrangement of the constellations. Some say that Egypt derives its triangular shape from the triangle of the constellation, and that the Nile, by this very shape it has given to the contours of the country, not only guarantees its security, but also makes it easier to sow easier and provide a favourable climate for harvesting the fruits of the earth.

	The Triangle has three bright stars, one on each angle. (Pamias and Zucker 2013)</blockquote>		The Triangle has three bright stars, one on each angle. (Pamias and Zucker 2013)</blockquote>'''Eratosthenes's star catalogue''' can be reconstructed from the list of stars he mentions in the last section of each of the constelllation descriptions. Hoffmann (2017)<ref name=":0">Hoffmann, S. M., <nowiki><i>Hipparchs Himmelsglobus</i></nowiki>. Springer Wiesbaden/ New York, 2017. doi:10.1007/978-3-658-18683-8.</ref> made such a catalogue and used it for computational comparison with Hipparchus's, Ptolemy's and Babylonian data; it is based on the edition and translation by Pamias and Geus (2007)<ref>Eratosthenes: Sternsagen, übersetzt von Pamìas, Jordi und Geus, Klaus, Verlag Utopica, Oberhaid 2007</ref> and presented here in English translation.

	{\|class="wikitable"\|+		{\|class="wikitable"\|+
	!erat.Cat.ID		!erat.Cat.ID

Sushoff: /* Hipparchus's "lost" star Catalogue */

2026-08-26T14:18:38Z

Hipparchus's "lost" star Catalogue

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 ====== Hipparchus's "lost" star Catalogue ======
 The star catalogue of Hipparchus is not preserved. Yet, several scholars have reconstructed it in the past century: Vogt (1925)<ref>Vogt, H., “Versuch einer Wiederherstellung von Hipparchs Fixsternver zeichnis”, <nowiki><i>Astronomische Nachrichten</i></nowiki>, vol. 224, no. 2, Wiley, p. 17, 1925. doi:10.1002/asna.19252240202.</ref>, Grasshoff (1990)<ref>Graßhoff, G., <nowiki><i>The History of Ptolemy's Star Catalogue</i></nowiki>, Springer, New York, 1990 </ref>, Hoffmann (2017)<ref>Hoffmann, S. M., <nowiki><i>Hipparchs Himmelsglobus</i></nowiki>. Springer Wiesbaden/ New York, 2017. doi:10.1007/978-3-658-18683-8.</ref> and Glover (2026)<ref>Glover, E. (2026). ''The Astronomy of Hipparchus'', Cambridge University Press</ref>. Grasshoff's catalogue and computations are not published digitally, Hoffmann published three versions of the Manitius+Hoffmann<ref>Hipparchus's Lost Star Catalogue (1/2 reconstructed) (Hoffmann, 2017) in VizieR</ref> star lists in the CDS [https://vizier.unistra.fr/ VizieR] "catalog of catalogs", and Glover printed the star lists constellationwise in his book.
 {|class="wikitable"
 |+ Hipparchus's star in Aquarius (Glover 2026)

Sushoff: /* Hipparchus */

2026-08-26T14:17:14Z

Hipparchus

@@ Line 89: / Line 89: @@
 * not in Hipparchus's lists of rising and setting constellations
 * but γ Tri is mentioned as simultaneous culmination with the setting of Aquila, The Eagle
 ===== Hyginus, Astronomica =====

Sushoff: /* Eratosthenes */

2026-08-24T12:22:30Z

Eratosthenes

← Older revision		Revision as of 12:22, 24 August 2026
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	The Triangle has three bright stars, one on each angle. (Pamias and Zucker 2013)</blockquote>		The Triangle has three bright stars, one on each angle. (Pamias and Zucker 2013)</blockquote>

			{\|class="wikitable"\|+
			!erat.Cat.ID
			!constStarID
			!starName
			!ident.Bayer
			!ident.HIP
			!certainty
			\|-
			\|321
			\|1
			\|three bright stars, one at each corner
			\|alpha Tri
			\|8796
			\|1
			\|-
			\|322
			\|2
			\|three bright stars, one at each corner
			\|beta Tri
			\|10064
			\|1
			\|-
			\|323
			\|3
			\|three bright stars, one at each corner
			\|gam Tri
			\|10670
			\|1
			\|}

	===== Hipparchus =====		===== Hipparchus =====

Sushoff at 07:47, 29 July 2026

2026-07-29T07:47:56Z

@@ Line 2: / Line 2: @@
 ----
 [[File:Triangulum IAU.svg|alt=star chart|thumb|Tri star chart (IAU and Sky & Telescope magazine, Roger Sinnott & Rick Fienberg).]]
 [[File:Tri kugel.jpg|alt=drawing of the constellation |thumb|Constellation Trianugulum on the 10 cm silver globe from the Kugel collection (Paris), dating 1st century BCE.]]
 [[File:Kugel Globe Tri.JPG|thumb|Earliest known depiction of Triangulum on the Kugel Globe (first century BCE), drawing by SMH 2025.<ref>Hoffmann (2025), Some Results on the Ancient Globes, Globe Studies – The Journal of the International Coronelli Society, 69, 4169.</ref> ]]

IanRidpath: Copy edit

2026-07-22T21:08:07Z

Copy edit

← Older revision		Revision as of 21:08, 22 July 2026
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	==== Rudolphine Tables (1627) ====		==== Rudolphine Tables (1627) ====
	~~TheTabulae~~ Rudolphinae were ordered and dedicated to Emperor Rudolph II of the Holy Roman Empire. The main purpose was to allow the computation of the positions of the ~~then known~~ five classically known planets, but the tables also consist of a star catalogue. They were published by Johannes Kepler (1627), including earlier work and observational data by Tycho Brahe. The original Latin title is "Tabulæ Rudolphinæ, Quibus Astronomicæ Scientiæ, Temporum longinquitate collapsæ Restauratio continetur".		The Tabulae Rudolphinae were ordered and dedicated to Emperor Rudolph II of the Holy Roman Empire. The main purpose was to allow the computation of the positions of the five classically known planets, but the tables also consist of a star catalogue. They were published by Johannes Kepler (1627), including earlier work and observational data by Tycho Brahe. The original Latin title is "Tabulæ Rudolphinæ, Quibus Astronomicæ Scientiæ, Temporum longinquitate collapsæ Restauratio continetur".

	Kepler gives a Latin and a Greek variant: "'''Triangulus, Deltoton'''".[[File:Tri Plancius16112.JPG\|thumb\|Triangulum in Plancius (1612).]]		Kepler gives a Latin and a Greek variant: "'''Triangulus, Deltoton'''".[[File:Tri Plancius16112.JPG\|thumb\|Triangulum in Plancius (1612).]]
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	# For the third star of the prominent triangle, γ Tri, the ancient Egyptian name "[[Apdu]]" was adopted.		# For the third star of the prominent triangle, γ Tri, the ancient Egyptian name "[[Apdu]]" was adopted.
	# The original Ancient Greek term "[[Deltoton]]" was considered for one of the other unnamed stars among the 4 stars listed in the Almagest and adopted for Delta Tri, as WGSN likes to pun.		# The original Ancient Greek term "[[Deltoton]]" was considered for one of the other unnamed stars among the 4 stars listed in the Almagest and adopted for Delta Tri, as WGSN likes to pun.
	# "[[Triminus]]" - a shortened version of Hevelius's "Triangulum Minus" has also been proposed as a name for one of the three stars Iota/6 Tri, 10 Tri, and 12 Tri -- of which 6 Tri is the brightest (a quadruple dominated by a G giant).		# "[[Triminus]]" – a shortened version of Hevelius's "Triangulum Minus" has also been proposed as a name for one of the three stars Iota/6 Tri, 10 Tri, and 12 Tri -- of which 6 Tri is the brightest (a quadruple dominated by a G giant).

	== Weblinks ==		== Weblinks ==

Sushoff: /* Medieval and Early Modern Variants */

2026-06-20T10:40:26Z

Medieval and Early Modern Variants

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 === Medieval and Early Modern Variants ===
-==== Instrument (Triquetrum) ====
+==== Alfonsine Tables (1483) ====
 Plancius on his 1612 globe preserves a name variant for Triangulum:

Sushoff: /* Eratosthenes */

2026-06-12T06:53:57Z

Eratosthenes

← Older revision		Revision as of 06:53, 12 June 2026
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	===== Eratosthenes =====		===== Eratosthenes =====
	<blockquote>'''Var. 1 (περὶ τοῦ Δελτωτοῦ):''' This is the constellation above the head of Aries, and it is said that it is to compensate for its lack of brilliance is an easily recognisable letter, taken from the initial of the name of Zeus, and placed there by Hermes who organised the entire arrangement of the constellations. In fact, some say that Egypt derives its triangular shape from the triangle of the constellation, and that the Nile shape it has given to the contours of the country, not only guarantees its security, but also makes it easier to sow and provide a favourable climate for harvesting the fruits of the earth.		Pamias and Zucker (2013,<ref>Pamìas, Jordi und Zucker, Arnaud (2013). Ératosthènes de Cyrène: Catastérrismes, Belles Lettres, Paris</ref> 63-65)<blockquote></blockquote><blockquote>'''Var. 1 (περὶ τοῦ Δελτωτοῦ):''' This is the constellation above the head of Aries, and it is said that it is to compensate for its lack of brilliance is an easily recognisable letter, taken from the initial of the name of Zeus, and placed there by Hermes who organised the entire arrangement of the constellations. In fact, some say that Egypt derives its triangular shape from the triangle of the constellation, and that the Nile shape it has given to the contours of the country, not only guarantees its security, but also makes it easier to sow and provide a favourable climate for harvesting the fruits of the earth.

	The Triangle has three stars, one on each of its angles, all three shining brightly.		The Triangle has three stars, one on each of its angles, all three shining brightly.

YoulaAzkarrula: /* Transfer and Transformation of the Constellation */

2026-06-04T05:04:54Z

Transfer and Transformation of the Constellation

← Older revision		Revision as of 05:04, 4 June 2026
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	File:Sidney Hall - Urania's Mirror - Gloria Frederici, Andromeda, and Triangula.jpg\|Sidney Hall - Urania's Mirror - Gloria Frederici, Andromeda, and Triangula		File:Sidney Hall - Urania's Mirror - Gloria Frederici, Andromeda, and Triangula.jpg\|Sidney Hall - Urania's Mirror - Gloria Frederici, Andromeda, and Triangula
	File:IauWGSN Triangulum SadeghFaghanpour2025.jpg\|Triangulum with WGSN-names (CC BY Sadegh Faghanpour and Susanne M Hoffmann for WGSN 2025).		File:IauWGSN Triangulum SadeghFaghanpour2025.jpg\|Triangulum with WGSN-names (CC BY Sadegh Faghanpour and Susanne M Hoffmann for WGSN 2025).
			File:H.A. Rey's stick figure stellarium-077.png\|H.A. Rey's stick figure of Triangulum (1952)
			File:O. Hlad's stick figure stellarium-078.png\|O. Hlad's stick figure of Triangulum (1988)
	</gallery>		</gallery>

YoulaAzkarrula at 06:56, 29 May 2026

2026-05-29T06:56:38Z

← Older revision		Revision as of 06:56, 29 May 2026
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	* [[References (Medieval and Early Modern)\|References (medieval)]]		* [[References (Medieval and Early Modern)\|References (medieval)]]

	[[Category:Eurasia]] [[Category:Constellation]] [[Category:Almagest]] [[Category:Mesopotamian]] [[Category:West Asian]] [[Category:Modern]]		[[Category:Eurasia]] [[Category:Constellation]] [[Category:Asterism]][[Category:Almagest]] [[Category:Mesopotamian]] [[Category:West Asian]] [[Category:Asian]] [[Category:Modern]]
	[[Category:88 IAU-Constellations]] [[Category:European]][[Category:Tri]]		[[Category:88 IAU-Constellations]] [[Category:European]][[Category:Tri]]