Delta Trianguli Australis [SEP] constellation
Delta Trianguli Australis
Delta Trianguli Australis (δ TrA, δ Trianguli Australis) is a single, yellow-hued star in the constellation Triangulum Australe. It is approximately 606 light years (182 parsecs) from Earth.
This is a G-type giant star with a stellar classification of G5II and an apparent magnitude of +3.86. It has a visual companion, a 12th magnitude star separated by 30 arcseconds.
stars their Bayer designations in 1756.
Alpha Trianguli Australis, known as Atria, is a second-magnitude orange giant and the brightest star in the constellation, as well as the 42nd-brightest star in the night sky. Completing the triangle are the two white main sequence stars Beta and Gamma Trianguli Australis. Although the constellation lies in the Milky Way and contains many stars, deep-sky objects are not prominent. Notable features include the open cluster NGC 6025 and planetary nebula NGC 5979.
History.
Italian