Omicron Persei (ο Per) is a star in the constellation Perseus. It has the traditional name Atik (also Ati, Al Atik, Arabic for "the shoulder").
Atik is a spectroscopic binary star consisting of a spectral type B1 giant and a type B3 dwarf orbiting each other every 4.5 days.
Read more about Omicron Persei: In Fiction, Named After Atik, Ambiguity