Kaus Australis

Star

Apparent magnitude

1.81 mag

Parallax

22.76 mas → about 143.3 light-years away

Spectral type

B9.5III

Right ascension

276.043°

Declination

-34.3846°

Designation

HR 6879

Bayer designation

ε Sgr

HIP number

90185

IAU name adopted

2016-07-20

Name language

Arabic

Name origin (IAU)

Arbitrarily applied in recent times, together with the Latin distinctions of "middle," "southern," and "northern" (for λ Sgr), from the pre-Islamic Arabian (and later Arabic) constellation name al-qaus, "the Bow." For the pre-Islamic Arabians, al-qaus was marked by the curved line of stars ξ2, o, π, d, ρ and u Sgr (corresponding to what in other cultures was Sagittarius among the zodiacal signs). The Arabics used the indigenous name for the Greeks' Archer, alternatively translated as al-rami.

Source:IAU Working Group on Star Names · checked 2026-11-02 ↗ESA Hipparcos Catalogue (ESA Gaia Archive) · checked 2026-11-03 ↗