Kappa Ursae Majoris

Kappa Ursae Majoris (Kappa UMa, κ Ursae Majoris, κ UMa) is a binary star in the constellation Ursa Major. It is approximately 358 light years from Earth and has the traditional names Talitha Australis, Al Kaprah, and Alphikra Australis.

Both components of the binary star are a white A-type main sequence dwarfs. They have apparent magnitudes of +4.2 and +4.5, which gives the system a combined apparent magnitude of +3.60. The orbital period of the binary is 35.6 years (13,007.2 days), and the two stars are separated by 0.18 arcseconds.