Alpha Trianguli Australis |
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Atria (Alpha Trianguli Australis)
Photo: ESO Online Digitized Sky Survey
A giant K star and the brightest star in the constellation Triangulum Australe.
Alpha Trianguli Australis
Greek/English: combination of alpha and triangle
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ATRIA (Alpha Trianguli Australis). Among the easiest constellations to invent are simple triangles. There are two of them, one north (Triangulum) and one far south (Triangulum Australe).
The brightest star in the constellation is [8230] alpha Trianguli Australis, also known as Atria, which is just a contraction of its designation. It is an orange bright giant 415 light-years distant and a suspected binary star.
Its brightest star is named Atria (for alpha Trianguli Australis), in the manner of Acrux in the Southern Cross. It is easily seen near α and β Centaurus. Crux and Musca have their own pages.
The three main stars of Triangulum Australe are brighter than those of their northern counterpart, although the constellation is smaller. Navigators have named its brightest star Atria, a contraction of its scientific name Alpha Trianguli Australis.
 See also: Alpha Trianguli, Atria, Constellation, Triangulum Australe, Star
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