HD 21278

HD 21278
Location of HD 21278 (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Perseus
Right ascension 03h 28m 03.07027s[1]
Declination 49° 03′ 46.3186″[1]
Apparent magnitude (V) 4.99[2]
Characteristics
Spectral type B5V[3]
U−B color index -0.56[4]
B−V color index -0.10[4]
Astrometry
Radial velocity (Rv)+1.20[5] km/s
Proper motion (μ) RA: +22.59[1] mas/yr
Dec.: -26.85[1] mas/yr
Parallax (π)6.22 ± 0.28[1] mas
Distance520 ± 20 ly
(161 ± 7 pc)
Absolute magnitude (MV)-1.49[6]
Details
Luminosity940[6] L☉
Temperature14,970[6] K
Metallicity [Fe/H]0.00[7] dex
Rotational velocity (v sin i)50[8] km/s
Other designations
BD+48°920, GC 4108, HIP 16147, HR 1034, HD 21278, SAO 38849
Database references
SIMBADdata

HD 21278 is a class B5V[3] (blue main-sequence) star in the constellation Perseus. Its apparent magnitude is 4.99[2] and it is approximately 520 light years away based on parallax.[1]

References

  1. 1 2 3 4 5 6 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. 1 2 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. Vizier catalog entry
  3. 1 2 Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
  4. 1 2 Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 42: 443. Bibcode:2014JAVSO..42..443M. Vizier catalog entry
  5. ↑ Pourbaix, D.; Tokovinin, A. A.; Batten, A. H.; Fekel, F. C.; Hartkopf, W. I.; Levato, H.; Morrell, N. I.; Torres, G.; Udry, S. (2004). "SB9: The ninth catalogue of spectroscopic binary orbits". Astronomy and Astrophysics. 424 (2): 727. arXiv:astro-ph/0406573. Bibcode:2004A&A...424..727P. doi:10.1051/0004-6361:20041213.
  6. 1 2 3 Silaj, J.; Landstreet, J. D. (2014). "Accurate age determinations of several nearby open clusters containing magnetic Ap stars". Astronomy & Astrophysics. 566: A132. arXiv:1407.4531. Bibcode:2014A&A...566A.132S. doi:10.1051/0004-6361/201321468.
  7. ↑ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031. Vizier catalog entry
  8. ↑ Abt, Helmut A.; Levato, Hugo; Grosso, Monica (2002). "Rotational Velocities of B Stars". The Astrophysical Journal. 573: 359. Bibcode:2002ApJ...573..359A. doi:10.1086/340590.
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