| ATRIA | |
| Alpha Triangulum Australis | |
| 19SAG30. | 20SAG54. |
| -68.51'. | -69.02'. |
| 16h48m. | -46.09'. |
| K5. | 1.9. |
History of the star: A star in the constellation of the Southern Triangle.
The constellation was given the title "the Three Patriarchs", believed to refer to Abraham, Isaac, and Jacob, by Christian interpreters of the constellations.
No myths are linked to these stars because Triangulum Australis was not visible to the ancients in the northern hemisphere.