Triangulum Australe

Triangulum Australe

Abbreviation:  TrA
English Name:  The Southern Triangle
Genitive: Atria
Hemisphere:  Southern Hemisphere
Location: Between the constellations of Pavo and Circinus.
Visible between latitudes:  
+15 and -90 degrees
Best season: Summer
Seen in three seasons: Spring, Summer, and Autumn.
Best seen in:  June to July
Seen between: Late April  and middle of September.
Right Ascension (RA):  16 hour
Declination (DEC):  -65 degrees
Area (square degrees):  110 (83rd)

Triangulum Australe  (Southern Triangle)

  • Simple three-sided figure deep in the southern sky – small constellation, but brighter than its northern counterpart (Triangulum).
  • Lying in Milky-Way and has one Open Cluster, one accessible planetary nebula.

Messier Objects

  • No Messier objects in Triangulum Australe.

Features of Interest

  • NGC 5979  –  Planetary Nebula; different to see quality with 3-inch telescope, but clearly showing a hazy disk with 4-inch telescope. (Magnitude: +11.5)
  • NGC 6025  –  Open Cluster; rather bright in the Milky-Way, easy to see with binocular – best seen with 4-inch telescope. (Magnitude: +5.1)

Named Stars

  • Atria (bright giant orange star – magnitude; +1.91)



Back to The 88 Constellations Lists  page.

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