34 Persei

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34 Persei
Perseus constellation map.svg
Red circle.svg

Location of 34 Persei (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Perseus
Right ascension 03h 29m 22.05019s[1]
Declination 49° 30′ 32.2114″[1]
Apparent magnitude (V) 4.67[2]
Spectral type B3V[3]
U−B color index -0.57[4]
B−V color index -0.09[4]
Radial velocity (Rv) -3.50[5] km/s
Proper motion (μ) RA: +22.20[1] mas/yr
Dec.: -29.49[1] mas/yr
Parallax (π) 6.05 ± 0.36[1] mas
Distance 540 ± 30 ly
(165 ± 10 pc)
Absolute magnitude (MV) -1.62[2]
Mass 6.9[6] M
Luminosity 671[2] L
Surface gravity (log g) 4.076[7] cgs
Temperature 16,421[7] K
Rotational velocity (v sin i) 200[7] km/s
Other designations
BD+49°945, CCDM J03294+4931AB, GC 4133, HIP 16244, HR 1044, HD 21428, SAO 38872, WDS J03294+4931AB
Database references

34 Persei is a class B3V[3] (blue main-sequence) star in the constellation Perseus. Its apparent magnitude is 4.67[2] and it is approximately 540 light years away based on parallax.[1]

The primary has one companion, B, with separation 0.6" and magnitude 7.34.[8]


  1. ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b c d Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971Freely accessible. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015.  Vizier catalog entry
  3. ^ a b 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. ^ a b 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. ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. arXiv:1606.08053Freely accessible. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. 
  6. ^ Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410: 190. arXiv:1007.4883Freely accessible. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x.  Vizier catalog entry
  7. ^ a b c David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154Freely accessible. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. 
  8. ^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920.  Vizier catalog entry