| Observation data Epoch J2000.0 Equinox J2000.0 |
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|---|---|
| Constellation | Boötes |
| Right ascension | 15h 37m 49.6s |
| Declination | +40° 21' 12" |
| Apparent magnitude (V) | +5.25 |
| Distance | 163 ± 5 ly (50 ± 1 pc) |
| Spectral type | G7III-IVFe-2 |
| Other designations | |
| Database references | |
| SIMBAD | data |
Phi Boötis (φ Boo, φ Boötis) is a star in the constellation Boötes. It has the traditional name Ceginus, which it shares with Gamma Boötis.
φ Boötis is a yellow G-type giant with an apparent magnitude of +5.25. It is approximately 163 light years from Earth.
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