Kochab
(astronomy) β Ursae Minoris, the second-brightest star in the constellation Ursa Minor, formerly a dual North Star with Pherkad from about 1000 BC to about AD 300.
Of these ten stars, six have a proper name, viz. Polaris (α UMi), Kochab (β UMi), Pherkad (γ UMi), Yildun (δ UMi), Ahfa al Farkadain (ζ UMi) and Anwar al Farkadain (η UMi). Source: Internet
Kochab and magnitude 3 Gamma Ursae Minoris have been called the "guardians of the pole star". Source: Internet
Planets have been detected orbiting four of the stars, including Kochab. Source: Internet