Pi Cassiopeiae
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cassiopeia |
| Right ascension | 00h 43m 28.070s[1] |
| Declination | +47° 01′ 28.37″[1] |
| 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: −23.71 ± 0.23[1] mas/yr Dec.: −36.84 ± 0.18[1] mas/yr |
| Parallax (π) | 18.63 ± 0.32[1] mas |
| Distance | 175 ± 3 ly (53.7 ± 0.9 pc) |
| Absolute magnitude (MV) | +1.31 |
| Other designations | |
Map of the Bayer-designated stars in Cassiopeia. Pi Cassiopeiae is circled.
Pi Cassiopeiae (π Cas, π Cassiopeiae) is a star in the constellation Cassiopeia.
π Cassiopeiae is a white A-type main sequence dwarf with a mean apparent magnitude of +4.95. It is approximately 175 light years from Earth.[1] It is classified as a rotating ellipsoidal variable star and its brightness varies by 0.02 magnitudes with a period of 23.57 hours.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.Vizier catalog entry
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