About this star:

A star located near the left hind quarter of the Centaur Centaurus.

Agena is said to come from a and gena, "the knee".

The Arabic name for Agena is Hadar, "Ground". "The settled land" was another meaning given.

This and alpha (Toliman, also called Bungula) are the Southern Pointers, i. e. towards the Southern Cross, often regarded as the Cynosure of the southern hemisphere.

Arabic Wazn, "Weight", seem to have been applied to alpha and beta of this constellation, and to stars in Argo, Columba, and Canis Major, probably on account of their proximity to the horizon. (Allen).

The stars in Centaurus were not visible to the Greeks and there is not much classical mythology identified with this particular 1st magnitude star.

Influence of the constellation:

It is said to give hard-heartedness, inclination to vengeance, love of arms, strong passion, and an energetic nature. It may be connected with poisons. (Robson).

General influence of the star:

It gives position, friendship, refinement, morality, health and honor. (Robson).

Gossip or scandal, if with Venus and Mars, or Venus and Saturn. Success and happiness, if conjunct a benefic. (Ebertin).

A significator of success. (Larousse Encyclopedia of Astrology).

With Sun: Mental activity, rashness, success, many friendships. (Robson).

With Moon: Sarcasm and bitter speech, strong passions. (Robson).

With Mercury: Great mental ability, sarcasm, material gain, speaking, writing and championing the masses. (Robson).

With Venus: Poetical, strong passions, rash friendships, with women. (Robson).

Pronounced sensuality. (Ebertin).

With Mars: Legal authority, honor as speaker or writer, great mental and physical powers. (Robson).

With Jupiter: Intellectual success, legal and Church authority, professional honor. (Robson).

With Saturn: Thoughtful, shrewd, association with medical men, healing powers, abrupt manner, occultism, domestic disharmony through jealousy. (Robson).

With Uranus: Sarcasm, public work but eventual disfavor of super

iors, caustic speaker arid writer, violent, coarse, unrefined, strong passions, domestic disharmony, loss of expected wealth, peculiar death. (Robson).

With Neptune: Sharp, rash, headstrong, original, organizer, poor executive ability, loss through law and speculation, obstacles to success, many false friends and enemies, liable to accidents, death by colds or fevers. (Robson).