Triangulum

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Abbreviation:  Tri (Triangulum)
English Name:  The Triangle
Genitive: Ras al Muthallath
Hemisphere: Northern Hemisphere
Location: Between the constellations of Aries and Andromeda.
Visible between latitudes:  +90 and -50 degrees
Best season: Autumn/Winter
Seen in three seasons: Autumn, Winter and Spring
Best seen in:  Late October / Early December
Seen between: October and December
Right Ascension (RA): 02 hour
Declination (DEC): +30 degrees
Area (square degrees): 132 (78th)

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Triangulum (The Triangle)

  • Small, but easily found constellation between Andromeda and Aries.
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  • The famous galaxy – `The Triangulum Galaxy` at magnitude +5.8, it is bright enough to be seen by the naked eye under the darkest skies, but under light-polluted skies, it is challenging or invisible even in a small telescope or binoculars.

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Messier Objects in Triangulum

  • Messier 33
    Also known as `The Pinwheel Galaxy` or `The Triangulum Galaxy`, face-on with a low surface brightness, making it far more difficult to see than M31 (Andromeda Galaxy) in the constellation of Andromeda.

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      More objects in Triangulum

      Select CatalogNo of Objects
      Barnard (B)0x object
      Caldwell (C)0x object
      Collinder (Cr)1x objects
      New General Catalogue (NGC)82x objects
      Index Catalogue (IC)38x objects
      Sharpless (Sh2)0x object

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      Features of Interest

      • NGC 604 – Emission Nebula; one of the largest known seething of star birth in M33, The Pinwheel Galaxy.

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      Named Stars

      • Alpha Tri (Ras al Muthallath)
      • more list of stars in Triangulum.

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      Planetarium / Constellation Map

      Live constellation visible
      from the UK :- Planetarium (Triangulum)      		Best Seen in:
      Late October / Early December      		Seen between:
      October and December

      IAU Sky Chart: Triangulum

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      Constellations – Visible from the UK

      AndromedaAquariusAquilaAriesAuriga
      BoötesCamelopardalisCancerCanes VenaticiCanis Major
      Canis MinorCapricornusCassiopeiaCepheusCetus
      Coma BerenicesCorona BorealisCorvusCraterCygnus
      DelphinusDracoEquuleusGeminiHercules
      HydraLacertaLeoLeo MinorLepus
      LibraLynxLyraMonocerosOphiuchus
      OrionPegasusPerseusPiscesSagitta
      ScutumSerpens CaputSerpens CaudaSextansTaurus
      TriangulumUrsa MajorUrsa MinorVirgoVulpecula
      (50 constellations above are visible from the United Kingdom.)

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      Parts visible from the UK

      AntliaColumbaEridanusFornaxMicroscopium
      Piscis AustrinusPuppisPyxisSagittariusScorpius
      Sculptor
      (11 constellations above are partially visible from the United Kingdom.)

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      Constellations: Southern Celestial Hemisphere
      …..– never seen from the UK

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      Back to Constellation Names

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