Fixed star:  ATRIA
Constellation:  Alpha (α) Triangulum Australis
Longitude 1900:  19SAG30	Longitude 2000:  20SAG54
Declination 1900:  -68.51′	Declination 2000:  -69.02′
Right ascension:  16h 48m	Latitude:  -46.09′
Spectral class:  K5	Magnitude:  1.9

The history of the star: Atria

Alpha (α) Triangulum Australis, Atria, is a star in the constellation of the Southern Triangle.

Alpha (α  Atria), beta (β) and gamma (γ), 3.1 each, were—perhaps are now—the seamen’s Triangle Stars

The constellation was given the title "the Three Patriarchs", believed to refer to Abraham, Isaac, and Jacob, by Christian interpreters of the constellations.

Star Names, Their Lore and Meaning, Richard Hinckley Allen, 1889].

The astrological influences of the constellation Triangulum Australis

No myths or astrological interpretations are linked to these stars because Triangulum Australis was not visible to the ancients in the northern hemisphere.

References:

Fixed Stars and Constellations in Astrology, Vivian E. Robson, 1923].