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Triangulum Australe constellation

Triangulum Australe is a constellation of the southern sky. Its brightest star is Atria. Visibility at mid-northern latitudes (52° N): not visible — too far south in the sky.

  • —not visible at 52° N
  • Atriabrightest star, magnitude 1.9
  • TrATriangulum Australe
The constellation Triangulum Australe in the starry sky: its figure and its bright stars Rigil Kentaurus, Centaurus — magnitude −0.0. Open on the sky mapToliman, Centaurus — magnitude 1.4. Open on the sky mapAtria, Triangulum Australe — magnitude 1.9. Open on the sky mapAtriaβ Trianguli Australis — magnitude 2.8. Open on the sky mapγ Trianguli Australis — magnitude 2.9. Open on the sky mapδ Trianguli Australis — magnitude 3.9. Open on the sky mapε Trianguli Australis — magnitude 4.1. Open on the sky map N ↑← E
North is up, east is left — this is how the constellation looks in the sky. Click a star to open it on the sky map.

How to find the constellation Triangulum Australe

The constellation Triangulum Australe can’t be seen from mid-northern latitudes (52° N). At least part of it rises above the horizon south of 26° N.

LocationVisibility
40° NMadrid, New York, Beijingnot visible — too far south in the sky
52° NLondon, Berlin, Warsawnot visible — too far south in the sky
60° NOslo, Helsinki, Saint Petersburgnot visible — too far south in the sky

Bright stars of the constellation

StarMagnitudeColorDistance
Atriaα Trianguli Australis 1.9orange—
β Trianguli Australis 2.8white—
γ Trianguli Australis 2.9bluish white—
δ Trianguli Australis 3.9orange—
ε Trianguli Australis 4.1orange—

Magnitude is a measure of a star’s brightness: the smaller the number, the brighter the star; on a dark night the naked eye can see stars down to magnitude 6.

Questions

How do you find the constellation Triangulum Australe in the sky?

The constellation Triangulum Australe can’t be seen from mid-northern latitudes (52° N). At least part of it rises above the horizon south of 26° N.

When is the best time of year to observe the constellation Triangulum Australe?

The constellation Triangulum Australe can’t be seen from mid-northern latitudes (52° N) at any time of year. At least part of it rises above the horizon south of 26° N.

What is the brightest star in the constellation Triangulum Australe?

Atria: magnitude 1.9, orange.

How many stars are there in the constellation Triangulum Australe?

With the naked eye on a perfectly dark night — with no light pollution and no Moon — you can see about 21 stars in the constellation (brighter than magnitude 6, within the constellation’s boundaries). In a city far fewer: usually only the stars of its figure.

Summer constellations

Find it in the sky tonightA sky map over your city: where the constellation Triangulum Australe is now and when it will rise.
Open the sky map