About this star:

Kaus Medius or Kaus Media is a double star, 2.8 and 14.5, orange yellow and bluish. The Arabic name is Al-Qaus. Kaus Meridionalis, or Media, is Arabic and Latin for the Middle (of the) Bow.

Delta (Kaus Medius), gamma (Alnasl) and epsilon (Kaus Australis), was the Akkadian Sin-nun-tu, or Si-nu-nu-tum, "the Swallow".

In ancient Arabia the two small groups of stars now marking the head and the vane of the Archer's arrow were of much note as relics of still earlier asterisms, as well as a lunar station. The westernmost of these, — gamma (Alnasl), delta ( this star Kaus Medius), epsilon (Kaus Australis), and eta — were Al Na'am al Warid, the Going Ostriches; and the easternmost, — sigma (Nunki), zeta (Ascella), phi, chi, and tau, — Al Na'am al Sadirah, the Returning Ostriches, passing to and from the celestial river, the Milky Way, with the star lamda (Kaus Borealis) for their Keeper.

All of the foregoing stars were included in the Arabic 18th manzil, Al Na'am. [Influences: Helps the taming of wild beasts, strengthening of prisons, destroys the wealth of societies and compels a man to come to a certain place. With Moon transiting here; build, ask favors but do not marry (Robson)]. (Allen).

Influence of the constellation:

The Archer is associated with the Hebrew letter Vau and the 6th Tarot Trump "The Lovers". (Robson).

Influence of the star:

Promoters of idealistic and humane ideas, promoters of mental stimuli, enterprise and a sense of justice. (Ebertin).

It conveys a sense of strength and flexibility combined and this often shows up in the charts of people who can put force behind their reasoning, yet be flexible. (Dr. Eric Morse).