Mizar, also known as Zeta Ursae Majoris, was a quinary star system, located in the Mizar sector of the galaxy's Alpha Quadrant, in or near the boundaries of the space claimed by the United Federation of Planets. From Earth, which was 88 lightyears away, Mizar was part of the Ursa Major constellation. Mizar had five type A light-blue stars locked in orbit. This system was in the general vicinity of 13 Ceti, Mu Cassiopeiae, and Alioth. Mizar II was the Mizarian homeworld, and Mizar IV the site of a Federation colony (ST reference: Star Charts, STO video game: Agents of Yesterday)