| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Perseus |
| Right ascension | 04h 42m 54.33987s[1] |
| Declination | +43° 21′ 54.4795″[1] |
| Apparent magnitude (V) | 5.30[2] |
| Characteristics | |
| Evolutionary stage | main sequence[3] |
| Spectral type | A1Vn[4] |
| B−V color index | 0.028±0.005[2] |
| Astrometry | |
| Radial velocity (Rv) | +13.2±3.1[2] km/s |
| Proper motion (μ) | RA: +30.826[1] mas/yr Dec.: −50.576[1] mas/yr |
| Parallax (π) | 12.7294 ± 0.1774 mas[1] |
| Distance | 256 ± 4 ly (79 ± 1 pc) |
| Absolute magnitude (MV) | 0.99[2] |
| Details | |
| Mass | 2.58[5] M☉ |
| Radius | 2.5[6] R☉ |
| Luminosity | 41.4+11.7 −9.2[3] L☉ |
| Surface gravity (log g) | 4.05±0.14[5] cgs |
| Temperature | 10,734±365[5] K |
| Rotational velocity (v sin i) | 212[3] km/s |
| Age | 198[5] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
59 Persei is a suspected astrometric binary[8] star system in the northern constellation of Perseus. It is visible to the naked eye as a dim, white-hued star with an apparent magnitude of 5.30.[2] The star is located around 256 light years distant from the Sun, based on parallax,[1] and is drifting further away with a radial velocity of +13 km/s.[2]
This is an ordinary A-type main-sequence star with a stellar classification of A1Vn,[4] a star that is fusing its core hydrogen. The 'n' suffix indicates "nebulous" lines due to rapid spin; it has a projected rotational velocity of 212 km/s.[3] The star is around 198[5] million years old with 2.58[5] times the mass of the Sun and about 2.5[6] times the Sun's radius. It is radiating 41[3] times the luminosity of the Sun from its photosphere at an effective temperature of 10,734 K.[5]
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