English Name: The Southern Triangle
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.
- 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)
- Atria (bright giant orange star – magnitude; +1.91)
- Photo of the constellation; Triangulum Australe, as it appears to the naked eye. (Lines have been added for clarity.)
- Sky Chart – Triangulum Australe
- List of stars in Triangulum Australe.
Back to The 88 Constellations Lists page.