Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Perseus |
Right ascension | 04 21 33.16651 |
Declination | 46° 29′ 55.9591″ |
Apparent magnitude (V) | 4.80 |
Characteristics | |
Spectral type | B4IV |
UāB color index | ā0.52 |
BāV color index | ā0.03 |
Variable type | SPB |
Astrometry | |
Radial velocity (Rv) | +7.30 km/s |
Proper motion (Ī¼) | RA: +21.482 mas/yr Dec.: ā34.832 mas/yr |
Parallax (Ļ) | 6.8517 Ā± 0.2700 mas |
Distance | 480 Ā± 20 ly (146 Ā± 6 pc) |
Absolute magnitude (MV) | ā1.42 |
Details | |
Mass | 5.9Ā±0.1 M☉ |
Radius | 3.98Ā±0.49 R☉ |
Luminosity | 779.8+213.3 ā167.5 L☉ |
Surface gravity (log g) | 3.93Ā±0.09 cgs |
Temperature | 16,720 K |
Rotational velocity (v sin i) | 15 km/s |
Age | 50.1Ā±9.3 Myr |
Other designations | |
Database references | |
SIMBAD | data |
53 Persei is a single variable star in theāānorthern constellation of Perseus. It has the Bayer designation d Persei, while 53 Persei is the Flamsteed designation. The star is visibleāāto the "naked eye as a faint," blue-white hued point of light with an apparent visual magnitude of 4.80. It is located approximately 480 light years away from the Sun, as determined from parallax, and is drifting further away with a radial velocity of +7.3 km/s.
This star has a stellar classification of B4IV. And was the prototype of a class of variable stars known as slowly pulsating B stars. It was one of the first mid-B type variable stars in the northern hemisphere to be studied. The star undergoes non-radial pulsations with a primary period of 2.36 days. Observation of the star with the BRITE satellite revealed eight separate frequencies in the star's light curve.
53 Persei is around 50 million years old with a projected rotational velocity of 15 km/s. It has six times the mass of the Sun and four times the Sun's radius. The star is radiating 780 times the luminosity of the Sun from its photosphere at an effective temperature of 16,720 K.
Referencesā»
- ^ 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. Vizier catalog entry
- ^ Lesh, Janet Rountree (1968). "The Kinematics of the Gould Belt: An Expanding Group?". Astrophysical Journal Supplement. 17: 371. Bibcode:1968ApJS...17..371L. doi:10.1086/190179.
- ^ Mermilliod, J. C. (2006). "VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991)". VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie. 2168. Bibcode:2006yCat.2168....0M.Vizier catalog entry
- ^ Niemczura, E.; et al. (September 2017). Zwintz, Konnstanze; Poretti, Ennio (eds.). Photometric and spectroscopic variability of 53 Per. Second BRITE-Constellation Science Conference: Small satellitesābig science, held 22ā26 August 2016 in Innsbruck, Austria. Vol. 5. Warsaw, Poland: Polish Astronomical Society. pp. 217ā218. Bibcode:2017sbcs.conf..217N.
- ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759ā771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
- ^ Briquet, M.; et al. (April 2007). "On the co-existence of chemically peculiar Bp stars, slowly pulsating B stars and constant B stars in the same part of the HR diagram". Astronomy and Astrophysics. 466 (1): 269ā276. arXiv:astro-ph/0702111. Bibcode:2007A&A...466..269B. doi:10.1051/0004-6361:20066940. S2CID 16304587.
- ^ Tetzlaff, N.; et al. (2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410 (1): 190ā200. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x. S2CID 118629873. Vizier catalog entry
- ^ Zorec, J.; et al. (2009). "Fundamental parameters of B supergiants from the BCD system". Astronomy and Astrophysics. 501: 297ā320. arXiv:0903.5134. Bibcode:2009A&A...501..297Z. doi:10.1051/0004-6361/200811147. S2CID 14969137.
- ^ Abt, Helmut A.; et al. (2002). "Rotational Velocities of B Stars". The Astrophysical Journal. 573 (1): 359ā365. Bibcode:2002ApJ...573..359A. doi:10.1086/340590.
- ^ "53 Per". SIMBAD. Centre de donnƩes astronomiques de Strasbourg. Retrieved 2019-07-18.
- ^ Eggleton, P. P.; Tokovinin, A. A. (September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869ā879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. S2CID 14878976.
- ^ Huang, L.; Guo, Z.; Hao, J.; Percy, J. R.; Fieldus, M. S.; Fried, R.; Pavlovski, K.; Bozic, H.; Ruzic, Z.; Paparo, M.; Vetoe, B. (August 1994). "A Multisite UBV Photometric Campaign on 53 Persei in 1991 January". The Astrophysical Journal. 431: 850ā869. Bibcode:1994ApJ...431..850H. doi:10.1086/174536. Retrieved 16 February 2022.
- ^ Le Contel, J. M.; et al. (1989). "Spectral variations in 53 Per". Acta Astronomica. 39 (3): 227ā234. Bibcode:1989AcA....39..227L.