4 Cassiopeiae
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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cassiopeia |
| Right ascension | 23h24m50.3s |
| Declination | +62°16′58″ |
| Apparent magnitude (V) | +4.96 |
| Characteristics | |
| Spectral type | M1III |
| U−B color index | +2.07 |
| B−V color index | +1.68 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | −37 km/s |
| Proper motion (μ) | RA: 12.24 mas/yr Dec.: −13.25 mas/yr |
| Parallax (π) | 4.23 ± 0.55 mas |
| Distance | 770 ly (236 pc) |
| Absolute magnitude (MV) | −1.9 |
| Other designations | |
4 Cassiopeiae is a star in the constellation Cassiopeia. It is a M-type red giant with an apparent magnitude of +4.96 and is approximately 770 light-years from Earth.
In the sky, the open cluster Messier 52 is 40' to the south of it.
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