53 Persei
 Location of 53 Persei (circled) |
|
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Perseus |
| Right ascension | 04h 21m 33.16557s |
| Declination | 46° 29′ 55.9554″ |
| Apparent magnitude (V) | 4.80 |
| Characteristics | |
| Spectral type | B4IV |
| U−B color index | -0.52 |
| B−V color index | -0.03 |
| Astrometry | |
| Radial velocity (Rv) | +7.30 km/s |
| Proper motion (μ) |
RA: +20.06 mas/yr Dec.: -35.45 mas/yr |
| Parallax (π) | 6.43 ± 0.28mas |
| Distance | 510 ± 20 ly (156 ± 7 pc) |
| Absolute magnitude (MV) | -1.15 |
| Details | |
| Mass | 5.9 M☉ |
| Luminosity | 312 L☉ |
| Temperature | 16,720 K |
| Rotational velocity (v sin i) | 15 km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
53 Persei (53 Per) is a class B4IV (blue subgiant) star in the constellation Perseus. Its apparent magnitude is 4.80 and it is approximately 510 light years away based on parallax. It was the prototype of a class of variable stars known as slowly pulsating B stars, but it is now not agreed whether it is one or not.
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