1 Cassiopeiae
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Cassiopeia |
| Right ascension | 23h 06m 36.818s[1] |
| Declination | +59° 25′ 11.14″[1] |
| Apparent magnitude (V) | +4.84 |
| Characteristics | |
| Spectral type | B0.5 IV |
| U−B color index | −0.87 |
| B−V color index | −0.03 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | −9 km/s |
| Proper motion (μ) | RA: 6.94 ± 0.14[1] mas/yr Dec.: −1.95 ± 0.14[1] mas/yr |
| Parallax (π) | 2.89 ± 0.13[1] mas |
| Distance | 1,130 ± 50 ly (350 ± 20 pc) |
| Absolute magnitude (MV) | −2.8 |
| Details | |
| Mass | 13.1[2] M☉ |
| Radius | 10.2[3] R☉ |
| Luminosity | 18,200[2] L☉ |
| Surface gravity (log g) | 3.98[2] cgs |
| Temperature | 27,200[2] K |
| Other designations | |
1 Cassiopeiae is a star in the constellation Cassiopeia. It is a blue-white B-type subgiant with an apparent magnitude of +4.84 and is approximately 1130 light years from Earth.[1]
References
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