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48 Persei

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Magnitude
  
4.03

Apparent magnitude (V)
  
4.03

Constellation
  
Perseus

48 Persei

People also search for
  
Psi Persei, 16 Persei, Mu Persei, 34 Persei

48 Persei (also known as c Persei, 48 Per, HR 1273, HIP 19343, or HD 25940) is a Be star in the constellation Perseus, approximately the 500th brightest of the visible stars in apparent magnitude. It is "well known for its complex spectrum and for its light and velocity variations". The name "48 Persei" is a Flamsteed designation given to it by John Flamsteed in his catalogue, published in 1712.

As a Be star, it is hot and blue, spinning so rapidly that it forms an unstable equatorial disk of matter surrounding it. Its mass has been estimated as seven times that of the Sun, and its estimated age of 40 million years makes it much younger than the Sun. In another few million years it will likely cease hydrogen fusion, expand, and brighten as it becomes a red giant.

Additional reading

  • Jackisch, G. (1963), "Photoelectric and Spectroscopic Observations of 48 Persei and 53 Persei", Information Bulletin on Variable Stars, 40: 1, Bibcode:1963IBVS...40....1J .
  • Baliunas, S. D.; Ciccone, M. A.; Guinan, E. F.; Miskinis, P. (1975), "Photoelectric Study of the Bright Be Stars γ Cas, 48 Per, ψ Per, and &phis; Per.", Bulletin of the American Astronomical Society, 7: 252, Bibcode:1975BAAS....7Q.252B .
  • Goraya, P. S. (1985), "Recent changes in the spectrum of the Be star 48 Persei", Astrophysics and Space Science, 109 (2): 373–380, Bibcode:1985Ap&SS.109..373G, doi:10.1007/BF00651283 .
  • Tur, N. S.; Goraya, P. S.; Chaubey, U. S. (1987), "Continuum energy dissipation of 48 Persei", Astrophysics and Space Science, 139 (2): 257–262, Bibcode:1987Ap&SS.139..257T, doi:10.1007/BF00644354 .
  • Guo, Xiao-Zhen; Guo, Zi-He; Hao, Jin-Xin (1991), "A study of the low dispersion spectrum and photometry of the Be star 48 Per in 1989", Acta Astronomica Sinica, 32 (4): 415–420, Bibcode:1991AcASn..32..415G .
  • Hao, Jinxin; Lin, Huang; Catala, C.; Foing, B. H. (1995), "Proc. 4th Workshop on Multi-site Continuous Spectroscopy, Beijing, China, June 19-24, 1994", Multi-site Continuous Spectroscopy. Proceedings of the 4th workshop held in Beijing: 91, Bibcode:1995mscs.conf...91H  .
  • Hubert, A. M.; Floquet, M.; Hao, J. X.; et al. (1997), "Multi-site continuous spectroscopy. V. Rapid photospheric variability in the Be star 48 Persei from the MUSICOS 1989 campaign", Astronomy & Astrophysics, 324: 929–940, Bibcode:1997A&A...324..929H .
  • Delaa, O.; Stee, Ph.; Meilland, A.; et al. (2011), "Kinematics and geometrical study of the Be stars 48 Persei and ψ Persei with the VEGA/CHARA interferometer", Astronomy & Astrophysics, 529: A87, Bibcode:2011A&A...529A..87D, doi:10.1051/0004-6361/201015639 .

    • References

    48 Persei Wikipedia
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