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Triangulum Australe: Difference between revisions
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Italian navigator Amerigo Vespucci explored the New World at the beginning of the 16th century. He learnt to recognize the stars in the southern hemisphere and made a catalogue for his patron king Manuel I of Portugal, which is now lost. As well as the catalogue, Vespucci wrote descriptions of the southern stars, including a triangle which may be either Triangulum Australe or Apus. This was sent to his patron in Florence, Lorenzo di Pierfrancesco de' Medici, and published as Mundus Novus in 1504.[2] The first depiction of the constellation was provided in 1589 by Flemish astronomer and clergyman Petrus Plancius on a 32½-cm diameter celestial globe published in Amsterdam by Dutch cartographer Jacob Floris van Langren,[3] where it was called Triangulus Antarcticus and incorrectly portrayed to the south of Argo Navis. His student Petrus Keyzer, along with Dutch explorer Frederick de Houtman, coined the name Den Zuyden Trianghel.[4]Triangulum Australe was more accurately depicted in Johann Bayer's celestial atlas Uranometria in 1603, where it was also given its current name. | Italian navigator Amerigo Vespucci explored the New World at the beginning of the 16th century. He learnt to recognize the stars in the southern hemisphere and made a catalogue for his patron king Manuel I of Portugal, which is now lost. As well as the catalogue, Vespucci wrote descriptions of the southern stars, including a triangle which may be either Triangulum Australe or Apus. This was sent to his patron in Florence, Lorenzo di Pierfrancesco de' Medici, and published as Mundus Novus in 1504.[2] The first depiction of the constellation was provided in 1589 by Flemish astronomer and clergyman Petrus Plancius on a 32½-cm diameter celestial globe published in Amsterdam by Dutch cartographer Jacob Floris van Langren,[3] where it was called Triangulus Antarcticus and incorrectly portrayed to the south of Argo Navis. His student Petrus Keyzer, along with Dutch explorer Frederick de Houtman, coined the name Den Zuyden Trianghel.[4]Triangulum Australe was more accurately depicted in Johann Bayer's celestial atlas Uranometria in 1603, where it was also given its current name. | ||
==Etymology== | |||
A triangle is a geometric shape that has three sides. There are two triangles in the sky; this small Southern Triangle, Triangulum Australe, is a new addition to the sky and was named by Johann Bayer in 1603. The Northern Triangle, Triangulum is an ancient constellation. The three brightest stars of Triangulum Australe, are of second and third magnitude and form an approximately equilateral triangle. | |||
The two triangles in the sky each suggest a trinity. Triangulum Australe, the Southern Triangle, was given the title 'the Three Patriarchs', representing the biblical Abraham, Isaac, and Jacob, suggesting a masculine trinity. The word patriarch has its counterpart in matriarch. [The Northern Triangle, Triangulum, has feminine associations in mythology.] Patrilineality, also called 'agnatic kinship', is a system in which one belongs to one's father's lineage. The agnatic ancestry of an individual is that person's pure male ancestry [1]. The Y chromosome (Y-DNA) is paternally inherited [the letter Y has three points?]. | |||
Patriarch can be broken down pa-tri-arch 'three father archetype', or, pa-tribe-arch, which is the usual understanding of the word; a father who rules his family or tribe from Greek patria, 'family, lineage', and -arches, 'leader, archetype'. The suffix pa- from apa, father, papa, and -tri-arch, might also relate to the trinity; three persons in the one god. The words tri-angle, tribe and three are from the same Indo-European root *trei-'Three'. A number of these derivatives have masculine connotations: Derivatives: three, tribe, tribune, tribute,contribute. From the compound form *tri-sta-i-, 'third person standing by' (-sta-, standing), testimony, testicle,testis, testes, attest, contest, detest, obtest, protest, testify, testament (from the word testes, referring to the male generative organs, that contain the 'seeds of life', from Latin testis, a witness), intestate (‘not having made a will’), sitar (a stringed instrument of India). [Pokorny trei- 1090. Watkins] | |||
<ref>[http://www.constellationsofwords.com/Constellations/TriangulumAustralis.html Constellations of Words]</ref> | |||
==HGS Session References== | ==HGS Session References== | ||