Omicron Persei
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| Observation data Equinox J2000.0 |
|
|---|---|
| Constellation | Perseus |
| Right ascension | 03h 44m 19.1s |
| Declination | +32° 17' 18" |
| Apparent magnitude (V) | +3.83 |
| Distance | 1000-1600 ly (300-500 pc) |
| Spectral type | B1III |
| Other designations | |
Omicron Persei (ο Per) is a star in the constellation Perseus. It also 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.
