Pi Cassiopeiae (π Cas, π Cassiopeiae) is a star in the constellation Cassiopeia.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cassiopeia |
| Right ascension | 00h43m28.1s |
| Declination | +47°01′29″ |
| Apparent magnitude (V) | +4.95 |
| Characteristics | |
| Spectral type | A5V |
| U−B color index | +0.09 |
| B−V color index | +0.18 |
| Variable type | Rotating ellipsoid |
| Astrometry | |
| Radial velocity (Rv) | +013 km/s |
| Proper motion (μ) | RA: −24.52 mas/yr Dec.: −37.16 mas/yr |
| Parallax (π) | 18.71 ± 0.73 mas |
| Distance | 174.3 ly (53.4 pc) |
| Absolute magnitude (MV) | +1.31 |
| Other designations | |
π Cassiopeiae is a white A-type main sequence dwarf with a mean apparent magnitude of +4.95. It is approximately 174.3 light years from Earth. It is classified as a rotating ellipsoidal variable star and its brightness varies by 0.02 magnitudes with a period of 23.57 hours.
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