Back Menkib AST Zeta de Perseu Catalan Zeta Persei German Menkib Spanish زتا برساووش Persian Zeta Persei Finnish Zeta Persei French זטא בפרסאוס HE Zeta Persei ID Menkib Italian
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Perseus |
| Right ascension | 03h 54m 07.92143s[1] |
| Declination | +31° 53′ 01.0869″[1] |
| Apparent magnitude (V) | 2.86[2] |
| Characteristics | |
| Evolutionary stage | Blue supergiant |
| Spectral type | B1 Ib[3] |
| U−B color index | –0.72[2] |
| B−V color index | +0.10[2] |
| Astrometry | |
| Radial velocity (Rv) | 20.1 ± 1.2[4] km/s |
| Proper motion (μ) | RA: +7.274 mas/yr[1] Dec.: –9.141 mas/yr[1] |
| Parallax (π) | 3.8556 ± 0.4169 mas[1] |
| Distance | 1,300±200 ly (400±64 pc)[5] |
| Absolute magnitude (MV) | −4.55±0.1[6] |
| Details | |
| Mass | 14.5 ± 1.9[7] M☉ |
| Radius | 26–27[8] R☉ |
| Luminosity | 47,039[7] L☉ |
| Temperature | 20,800[7] K |
| Rotational velocity (v sin i) | 40[3] km/s |
| Age | 12.6 ± 1.5[9] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Zeta Persei (ζ Per, ζ Persei) is a star in the northern constellation of Perseus. With an apparent visual magnitude of 2.9,[2] it can be readily seen with the naked eye. Parallax measurements place it at a distance of about 846 light-years (259 parsecs) from Earth,[1] though measuremets of its Ca II lines place it at 1,300 light-years (400 parsecs).[5]
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