Nu Persei

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ν Persei
Perseus constellation map.svg
Red circle.svg
Location of ν Persei (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Perseus
Right ascension 03h 45m 11.63204s[1]
Declination 42° 34′ 42.7829″[1]
Apparent magnitude (V) 3.80[2]
Spectral type F5II[3]
U−B color index +0.28[2]
B−V color index +0.42[2]
Radial velocity (Rv) -12.10[4] km/s
Proper motion (μ) RA: -14.45[1] mas/yr
Dec.: +2.53[1] mas/yr
Parallax (π) 5.86 ± 0.22[1] mas
Distance 560 ± 20 ly
(171 ± 6 pc)
Absolute magnitude (MV) -2.39[5]
Mass 5.01[6] M
Luminosity 1491[6] L
Surface gravity (log g) 3.04[7] cgs
Temperature 6,625[7] K
Metallicity [Fe/H] +0.41[7] dex
Rotational velocity (v sin i) 48.9[8] km/s
Other designations
41 Persei, BD+42°815, CCDM J03452+4235A, FK5 134, GC 4474, HIP 17529, HR 1135, HD 23230, NSV 1261, SAO 39078, WDS J03452+4235A
Database references

Nu Persei (ν Per, ν Persei) is a Class F5,[3] fourth-magnitude star in the constellation Perseus. Nu Persei is a highly luminous yellow-white giant located about 555 light-years from Earth.[1]

Several companions beside the primary have been recorded. B, with magnitude 12.1 and separation 31.6", has its own companion, E, with magnitude 14.3 and separation 7.7". Additionally, C has magnitude 13.2 and separation 55.7", and D has magnitude 13.8 and separation 22.8".[9]


  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 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. ^ 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. ^ 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. 
  5. ^ 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
  6. ^ a b Hohle, M.M.; Neuhäuser, R.; Schutz, B.F. (2010). "Masses and luminosities of O- and B-type stars and red supergiants". Astronomische Nachrichten. 331 (4): 349. arXiv:1003.2335Freely accessible. Bibcode:2010AN....331..349H. doi:10.1002/asna.200911355.  Vizier catalog entry
  7. ^ a b c Earle Luck, R. (2014). "Parameters and Abundances in Luminous Stars". The Astronomical Journal. 147 (6): 137. Bibcode:2014AJ....147..137L. doi:10.1088/0004-6256/147/6/137. 
  8. ^ De Medeiros, J. R.; Mayor, M. (1999). "A catalog of rotational and radial velocities for evolved stars". Astronomy and Astrophysics Supplement Series. 139 (3): 433. arXiv:astro-ph/0608248Freely accessible. Bibcode:1999A&AS..139..433D. doi:10.1051/aas:1999401.  Vizier catalog entry
  9. ^ 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