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Theta Trianguli Australis

Star in the constellation Triangulum Australe

| b-v = +0.93 | u-b = +0.73

θ Trianguli Australis, Latinized as Theta Trianguli Australis, is a single star in the southern constellation of Triangulum Australe. It is visible to the naked eye as a dim, yellow-hued star with an apparent visual magnitude of +5.50. The star is located about 345 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +11 km/s.

This is an evolved G/K-type giant star with a stellar classification of G8-K0 III. This star is 2.6 times more massive than the Sun, but has expanded to ten times the radius of the Sun. It is radiating 65 times the Sun's luminosity from its photosphere at an effective temperature of 5,071 K.

References

| publication-place=Ann Arbor, MI

References

{{cite DR3. 5815795153743239680
(2022-01-01). "CORALIE radial-velocity search for companions around evolved stars (CASCADES). I. Sample definition and first results: Three new planets orbiting giant stars". Astronomy and Astrophysics.

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g-type-giants k-type-giants triangulum-australe bayer-objects durchmusterung-objects henry-draper-catalogue-objects hipparcos-objects bright-star-catalogue-objects

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