Back Ni Persei AST Nu Persey Azerbaijani Ni de Perseu Catalan Ni Persei Spanish نو برساووش Persian Nu Persei French Nu Persei ID Nu Persei Italian ペルセウス座ニュー星 Japanese Nu Persei Portuguese

Nu Persei

Nu Persei
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]
Characteristics
Spectral type F5II[3]
U−B color index +0.28[2]
B−V color index +0.42[2]
Variable type suspected[4]
Astrometry
Radial velocity (Rv)−12.10[5] km/s
Proper motion (μ) RA: −14.45[1] mas/yr
Dec.: +2.53[1] mas/yr
Parallax (π)5.86 ± 0.22 mas[1]
Distance560 ± 20 ly
(171 ± 6 pc)
Absolute magnitude (MV)−2.39[6]
Details
Mass5.01[7] M☉
Radius20.62+1.72
−1.76[8] R☉
Luminosity603.6±41.2[8] L☉
Surface gravity (log g)3.04[9] cgs
Temperature6,300+287
−158[8] K
Metallicity [Fe/H]+0.41[9] dex
Rotational velocity (v sin i)48.9[10] km/s
Age109[11] Myr
Other designations
ν Per, 41 Persei, NSV 1261, BD+42°815, FK5 134, GC 4474, HD 23230, HIP 17529, HR 1135, SAO 39078, CCDM J03452+4235A, WDS J03452+4235A[12]
Database references
SIMBADdata

ν Persei, Latinized as Nu Persei, is a single[13] star and a suspected variable in the northern constellation of Perseus. It has a yellow-white hue and is visible to the naked eye with an apparent visual magnitude of 3.80.[2] This object is located approximately 560 light-years from the Sun based on parallax[1] but is drifting closer with a radial velocity of −12 km/s.[5]

This object is a highly luminous bright giant star with a stellar classification of F5II.[3] It has five[7] times the mass of the Sun but has expanded to around 21[8] times the Sun's radius. The star has a relatively high rotation rate, spinning with a projected rotational velocity of 48.9 km/s.[10] It is radiating 604[8] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 6,300 K.[8]

Several visual 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".[14]

  1. ^ a b c d e f Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Ducati2002 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Hoffleit1991 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference gcvs was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference XHIP was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Hohle2010 was invoked but never defined (see the help page).
  8. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Luck2014 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference deMedeiros1999 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference lyubimkov2010 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference WDS was invoked but never defined (see the help page).
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