53 Persei is a single[12]variable star in the northern constellation of Perseus. It has the Bayer designationd Persei, while 53 Persei is the Flamsteed designation. The star is visible to the naked eye as a faint, blue-white hued point of light with an apparent visual magnitude of 4.80.[2] It is located approximately 480light years away from the Sun, as determined from parallax, and is drifting further away with a radial velocity of +7.3km/s.[6]
A visual band light curve for V469 Persei, plotted from data published by Huang et al. (1994)[13]
Star in the constellation Perseus
This article is about d Persei. Not to be confused with δ (delta) Persei.
This star has a stellar classification of B4IV,[3] and was the prototype of a class of variable stars known as slowly pulsating B stars.[14] It was one of the first mid-B type variable stars in the northern hemisphere to be studied.[5] The star undergoes non-radial pulsations with a primary period of 2.36days. Observation of the star with the BRITE satellite revealed eight separate frequencies in the star's light curve.[5]
53 Persei is around 50[8]million years old with a projected rotational velocity of 15km/s.[10] It has six[8] times the mass of the Sun and four[7] times the Sun's radius. The star is radiating 780[7] times the luminosity of the Sun from its photosphere at an effective temperature of 16,720K.[9]
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.; etal. (September 2017). Zwintz, Konnstanze; Poretti, Ennio (eds.). Photometric and spectroscopic variability of 53 Per. Second BRITE-Constellation Science Conference: Small satellites—big science, held 22–26 August 2016 in Innsbruck, Austria. Vol.5. Warsaw, Poland: Polish Astronomical Society. pp.217–218. Bibcode:2017sbcs.conf..217N.
Briquet, M.; etal. (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): 269–276. arXiv:astro-ph/0702111. Bibcode:2007A&A...466..269B. doi:10.1051/0004-6361:20066940. S2CID16304587.
"53 Per". SIMBAD. Centre de données 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): 869–879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. S2CID14878976.
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