10 Persei


10 Persei is a blue supergiant star in the constellation Perseus. Its apparent magnitude is 6.26 although it is slightly variable.

10 Persei
Perseus constellation map.svg
Red circle.svg
Location of 10 Per (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Perseus
Right ascension 02h 25m 16.02916s[1]
Declination +56° 36′ 35.3536″[1]
Apparent magnitude (V) 6.26[2]
Evolutionary stage Blue supergiant
Spectral type B2Ia[3]
U−B color index −0.61[2]
B−V color index +0.30[2]
Variable type α Cyg[4]
Radial velocity (Rv)−46.0[5] km/s
Proper motion (μ) RA: −0.08[1] mas/yr
Dec.: −1.50[1] mas/yr
Parallax (π)0.30 ± 0.41 mas[6]
Absolute magnitude (MV)−6.70[7]
Mass26 M
Radius51.4 R
Luminosity250,000 L
Surface gravity (log g)2.38 cgs
Temperature18,000 K
Rotational velocity (v sin i)82 km/s
Other designations
V554 Persei, HR 696, HD 14818, BD+55°612, HIP 11279, SAO 23304, GC 2885
Database references
10 Per is the bright star below and right of the Double Cluster

10 Persei is located around 3,333 parsecs (10,870 ly) distant in the Perseus OB1 stellar association. It lies close to the Double Cluster and is considered a cluster member.[8]

A light curve for V554 Persei, plotted from Hipparcos data[9]

In 1999, 10 Persei was given the variable star designation V554 Persei, after being identified as varying in Hipparcos photometry.[10] Its brightness varies by less than a tenth of a magnitude with no clear period.[4]


  1. ^ a b c d Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
  2. ^ a b c Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
  3. ^ Kraus, M.; Borges Fernandes, M.; Kubát, J. (2009). "Parameters of galactic early B supergiants. The influence of the wind on the interstellar extinction determination". Astronomy and Astrophysics. 499 (1): 291. Bibcode:2009A&A...499..291K. doi:10.1051/0004-6361/200810319.
  4. ^ a b Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
  5. ^ Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Washington. Bibcode:1953GCRV..C......0W.
  6. ^ Gaia Collaboration (2016). "VizieR Online Data Catalog: Gaia DR1 (Gaia Collaboration, 2016)". VizieR On-line Data Catalog: I/337. Originally Published in: Astron. Astrophys. 1337. Bibcode:2016yCat.1337....0G.
  7. ^ a b Searle, S. C.; Prinja, R. K.; Massa, D.; Ryans, R. (2008). "Quantitative studies of the optical and UV spectra of Galactic early B supergiants. I. Fundamental parameters". Astronomy and Astrophysics. 481 (3): 777. arXiv:0801.4289. Bibcode:2008A&A...481..777S. doi:10.1051/0004-6361:20077125. S2CID 1552752.
  8. ^ Lee, Hsu-Tai; Lim, Jeremy (2008). "On the Formation of Perseus OB1 at High Galactic Latitudes". The Astrophysical Journal. 679 (2): 1352–1363. arXiv:0804.4520. Bibcode:2008ApJ...679.1352L. doi:10.1086/587801. S2CID 14252530.
  9. ^ "Hipparcos Tools Interactive Data Access". Hipparcos. ESA. Retrieved 8 December 2021.
  10. ^ Kazarovets, E. V.; Samus, N. N.; Durlevich, O. V.; Frolov, M. S.; Antipin, S. V.; Kireeva, N. N.; Pastukhova, E. N. (1999). "The 74th Special Name-list of Variable Stars". Information Bulletin on Variable Stars. 4659: 1. Bibcode:1999IBVS.4659....1K.

Further readingEdit

  • Crowther, P. A.; Lennon, D. J.; Walborn, N. R. (2006). "Physical parameters and wind properties of galactic early B supergiants". Astronomy and Astrophysics. 446 (1): 279–293. arXiv:astro-ph/0509436. Bibcode:2006A&A...446..279C. doi:10.1051/0004-6361:20053685. S2CID 18815761.
  • McErlean, N. D.; Lennon, D. J.; Dufton, P. L. (1999). "Galactic B-supergiants: A non-LTE model atmosphere analysis to estimate atmospheric parameters and chemical compositions". Astronomy and Astrophysics. 349: 553. Bibcode:1999A&A...349..553M.