Triangulum Australe, the Southern Triangle (TrA)
(try-ANG-you-lum aw-STRAL-ee)
The Southern constellation of Triangulum Australe, the Southern Triangle, is best viewed in Summer during the month of July. It's brightest star is Atria at magnitude 1.91. The boundary of the Triangulum Australe constellation contains 1 stars that host known exoplanets.
- Pronunciation:
- try-ANG-you-lum aw-STRAL-ee
- Meaning:
- Southern Triangle
- Genitive:
- Trianguli Australis
- Abbreviation:
- TrA
- Constellation Family:
- Hercules
- Hemisphere:
- Southern
- Quadrant:
- SQ3
- Best viewing month*:
- July
- Right Ascension (avg):
- 16h 7m
- Declination (avg):
- -65° 6'
- Brightest star:
- Atria (1.91)
- Stars with planets:
- 1
- X-ray stars:
- 9 (3 binaries) stars
Brightest Stars in Triangulum Australe
The 10 brightest stars in the constellation Triangulum Australe by magnitude.
- Star
- Magnitude
- Spectral class
- Alpha Triangulum Australis (α TrA)
- 1.91
- K2IIb-IIIa
- Beta Triangulum Australis (β TrA)
- 2.83
- F2III
- Gamma Triangulum Australis (γ TrA)
- 2.87
- A1V
- Delta Triangulum Australis (δ TrA)
- 3.86
- G5II
- Epsilon Triangulum Australis (ε TrA)
- 4.11
- K0III
- Zeta Triangulum Australis (ζ TrA)
- 4.9
- F9V
- Triangulum Australis
- 5.1
- A0II-IIIp
- Kappa Triangulum Australis (κ TrA)
- 5.11
- G6IIa
- HD 148291
- 5.19
- K0II/IIICN
- Iota Triangulum Australis (ι TrA)
- 5.28
- F4IV
Star Clusters in Triangulum Australe
The most notable and easy-to-find star clusters in the constellation Triangulum Australe . Also see all star clusters.
* For southern latitudes, flip the season listed. For example, if a constellation is listed as best viewed in the summer in the month of July, in the southern hemisphere the constellation would be best viewed in the winter in January and would be upside-down.
** Circumpolar constellations are visible year-round in the hemisphere listed (and not at all in the opposite).