Star profile

Delta Trianguli Australis

3D likeness based on its real data · class G · ~5,500 K

What is Delta Trianguli Australis

Delta Trianguli Australis is a yellow G-type giant, anchored in the Southern Triangle some 607 light-years away. It shares its spectral class with the Sun, yet has swollen far beyond, becoming one of the warm yellow embers that sign that small triangle of the southern sky, a constellation drawn by European navigators as they crossed the equator toward newly mapped seas. Its mild light, modest to the unaided eye, has travelled for more than six centuries before reaching the night from high in the southern hemisphere.

Where it is and when to see it

Delta Trianguli Australis lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is June, when it culminates around midnight.

From London it never rises above the horizon.
From New York it never rises above the horizon.
From Sydney it never sets and culminates about 60° up.

It can be seen from anywhere south of 26° N.

It ranks no. 4 in brightness among the 21 stars of Triangulum Australe in our catalogue. To find it, start from Atria, the brightest: it lies about 6° away (a fist at arm's length covers about 10°).

The light you see today left it about 610 years ago.

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Astronomical data for Delta Trianguli Australis

Constellation: Triangulum Australe
Apparent magnitude: 3.86
Distance: 607.4 light years
Coordinates (J2000): RA 243.859° · Dec -63.686°
Catalogue: HIP 79664 · HD 145544

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Other stars in Triangulum Australe

Triangulum Australe has 21 stars in Stelvia's catalogue. Here are a few of them.

See all 21 stars in Triangulum Australe