Triangulum
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- For the southern constellation, see Triangulum Australe.
Template:Infobox Constellation Triangulum is a small northern constellation whose three brightest stars, of third and fourth magnitude, form an elongated triangle. It is one of the 88 modern constellations, and also one of the 48 listed by Ptolemy.
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Notable features
Triangulum has no stars of the first magnitude. Its brightest stars are β (magnitude 3.00) and α (magnitude 3.41).
Notable deep sky objects
Triangulum is the location of the Triangulum Galaxy, M33, one of the members of the Local Group. It is 3 million light years away, and at magnitude 5.8 is sufficiently bright that it can be glimpsed with the naked eye under dark skies.
History and mythology
An early name of the constellation was Sicilia, because Ceres, patron goddess of Sicily, was claimed to have begged Jupiter that the island be placed in the heavens.
Stars
- Stars with proper names:
- Mothallah [Metallah, Ras al Mothallah, Elmuthalleth] or Caput Trianguli (2/α Tri) 3.42
- < رأس المثلث ra´s[u] al-muθallaθ Head of the triangle
- Mothallah [Metallah, Ras al Mothallah, Elmuthalleth] or Caput Trianguli (2/α Tri) 3.42
- Stars with Bayer designations:
- Stars with Flamsteed designations:
See Also
Template:ConstellationsListedByPtolemy Template:ConstellationList
External links
- The Deep Photographic Guide to the Constellations: Triangulum (http://www.allthesky.com/constellations/aries/)de:Dreieck (Sternbild)
fr:Triangle (constellation) ko:삼각형자리 it:Triangulum nl:Triangulum ja:さんかく座 pl:Trójkąt (gwiazdozbiór) fi:Kolmio (tähdistö) th:กลุ่มดาวสามเหลี่ยม