| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Perseus |
| Right ascension | 04 42 54.33987 |
| Declination | +43° 21′ 54.4795″ |
| Apparent magnitude (V) | 5.30 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | A1Vn |
| B−V color index | 0.028±0.005 |
| Astrometry | |
| Radial velocity (Rv) | +13.2±3.1 km/s |
| Proper motion (μ) | RA: +30.826 mas/yr Dec.: −50.576 mas/yr |
| Parallax (π) | 12.7294 ± 0.1774 mas |
| Distance | 256 ± 4 ly (79 ± 1 pc) |
| Absolute magnitude (MV) | 0.99 |
| Details | |
| Mass | 2.58 M☉ |
| Radius | 2.5 R☉ |
| Luminosity | 41.4+11.7 −9.2 L☉ |
| Surface gravity (log g) | 4.05±0.14 cgs |
| Temperature | 10,734±365 K |
| Rotational velocity (v sin i) | 212 km/s |
| Age | 198 Myr |
| Other designations | |
| 59 Per, BD+43°1043, GC 5719, HD 29722, HIP 21928, HR 1494, SAO 39699 | |
| Database references | |
| SIMBAD | data |
59 Persei is a suspected astrometric binary 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. The star is located around 256 light years distant from the Sun, based on parallax, and is drifting further away with a radial velocity of +13 km/s.
This is an ordinary A-type main-sequence star with a stellar classification of A1Vn, 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. The star is around 198 million years old with 2.58 times the mass of the Sun and about 2.5 times the Sun's radius. It is radiating 41 times the luminosity of the Sun from its photosphere at an effective temperature of 10,734 K.
References
- ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644.
- ^ Zorec, J.; Royer, F. (January 2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy & Astrophysics, 537: A120, arXiv:1201.2052, Bibcode:2012A&A...537A.120Z, doi:10.1051/0004-6361/201117691, S2CID 55586789.
- ^ Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819
- ^ David, Trevor J.; Hillenbrand, Lynne A. (2015), "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets", The Astrophysical Journal, 804 (2): 146, arXiv:1501.03154, Bibcode:2015ApJ...804..146D, doi:10.1088/0004-637X/804/2/146, S2CID 33401607.
- ^ Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics, 367 (2) (Third ed.): 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451, S2CID 425754.
- "59 Per". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-03-30.
- Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
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