Editing Triangulum (section)

==History and mythology==
In the [[Babylonian star catalogues]], Triangulum, together with [[Gamma Andromedae]], formed the constellation known as {{Transliteration|sux|<sup>MUL</sup>APIN}} ({{lang|sux|{{cuneiform|8|𒀯𒀳}}}}) "The Plough". It is notable as the first constellation presented on (and giving its name to) a pair of tablets containing canonical star lists that were compiled around 1000&nbsp;BC, the [[MUL.APIN]]. The Plough was the first constellation of the "Way of [[Enlil]]"—that is, the northernmost quarter of the Sun's path, which corresponds to the 45 days on either side of [[summer solstice]]. Its first appearance in the pre-dawn sky ([[heliacal rising]]) in February marked the time to begin spring ploughing in [[Mesopotamia]].<ref>{{cite journal| author=Rogers, John H. |title= Origins of the Ancient Constellations: I. The Mesopotamian Traditions  |journal=Journal of the British Astronomical Association |volume=108 |date=1998|pages= 9–28|bibcode = 1998JBAA..108....9R }}</ref>

The Ancient Greeks called Triangulum ''Deltoton'' (Δελτωτόν), as the constellation resembled an upper-case Greek letter delta (Δ). It was transliterated by Roman writers, then later [[Latin]]ised as Deltotum.<ref name=allen>{{cite book  | last=Allen  | first=Richard Hinckley  | date=1963  | orig-year=1899  | author-link=Richard Hinckley Allen  | title=[[Star Names: Their Lore and Meaning]]  | edition=Reprint  | publisher=Dover Publications Inc.  | location=New York, New York  | isbn=((0-486-21079-0)) | pages=[https://archive.org/details/starnamestheirlo00alle/page/414 414–15]  }}</ref> [[Eratosthenes]] linked it with the [[Nile Delta]], while the Roman writer [[Gaius Julius Hyginus|Hyginus]] associated it with the triangular island of [[Sicily]], formerly known as Trinacria due to its shape.<ref name=ridpathtri>{{cite web| url=http://www.ianridpath.com/startales/triangulum.html | title=Triangulum |author=Ian Ridpath |author-link=Ian Ridpath|publisher=self-published | access-date= August 29, 2013}}</ref><!-- cites two previous sentences --> It was also called ''Sicilia'', because the Romans believed [[Ceres (Roman mythology)|Ceres]], patron goddess of Sicily, begged [[Jupiter (mythology)|Jupiter]] to place the island in the heavens.<ref name=allen /> Greek astronomers such as Hipparchos and Ptolemy called it ''Trigonon'' (Τρίγωνον), and later, it was Romanized as Trigonum. Other names referring to its shape include Tricuspis and Triquetrum.<ref name=allen /> [[Alpha Trianguli|Alpha]] and [[Beta Trianguli]] were called ''Al Mīzān'', which is [[Arabic language|Arabic]] for "The Scale Beam".<ref name=garfinckle1997/> In Chinese astronomy, Gamma Andromedae and neighbouring stars including Beta, Gamma and Delta Trianguli were called ''[[Teen Ta Tseang Keun]]'' (天大将军, "Heaven's great general"), representing honour in astrology and a great general in mythology.<ref name=ridpathtri/><ref>{{cite book  | last = Olcott  | first = William Tyler  | date = 2004 | orig-year = 1911|pages=22–23 | title = Star Lore: Myths, Legends, and Facts  | publisher = Courier Dover Publications|location=Mineola, New York  | isbn = 978-0-486-43581-7}}</ref>

Later, the 17th-century German celestial cartographer [[Johann Bayer]] called the constellation Triplicitas and Orbis terrarum tripertitus, for the three regions Europe, Asia, and Africa. Triangulus Septentrionalis was a name used to distinguish it from [[Triangulum Australe]], the Southern Triangle.<ref name=allen /> Polish astronomer [[Johannes Hevelius]] excised three faint stars—[[Iota Trianguli|ι]], [[10 Trianguli|10]] and [[12 Trianguli]]—to form the new constellation of [[Triangulum Minus]] in his 1690 ''Firmamentum Sobiescianum'', renaming the original as Triangulum Majus.<ref>{{cite web| url=http://www.ianridpath.com/startales/triangulumminus.html | title=Triangulum Minus |author=Ian Ridpath |author-link=Ian Ridpath|publisher=self-published | access-date= August 29, 2013}}</ref> The smaller constellation was not recognised by the [[International Astronomical Union]] (IAU) when the constellations were [[Constellation#IAU constellations|established in the 1920s]].<ref name=garfinckle1997>{{cite book | first1=Robert A. | last1=Garfinkle | title=Star-Hopping: Your Visa to Viewing the Universe | publisher=Cambridge University Press |location=Cambridge, United Kingdom |date=1997 | isbn=0-521-59889-3 | page=238 | url=https://books.google.com/books?id=40JzBYGREL0C&pg=PA238 }}</ref>