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32 Persei

This article is about l Persei. Not to be confused with i Persei or ι (iota) Persei.
32 Persei
Location of 32 Persei (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Perseus
Right ascension 03h 21m 26.55723s[1]
Declination 43° 19′ 46.7414″[1]
Apparent magnitude (V) 4.96[2]
Characteristics
Spectral type A3V[3]
U−B color index +0.07[4]
B−V color index +0.04[4]
Astrometry
Radial velocity (Rv)−9.00[5] km/s
Proper motion (μ) RA: −59.947[1] mas/yr
Dec.: −0.839[1] mas/yr
Parallax (π)21.8865 ± 0.2690 mas[1]
Distance149 ± 2 ly
(45.7 ± 0.6 pc)
Absolute magnitude (MV)1.64[2]
Details
Mass2.05[6] M☉
Radius1.8[7] R☉
Luminosity21[6] L☉
Surface gravity (log g)4.19[8] cgs
Temperature8,872[6] K
Metallicity [Fe/H]−0.01[9] dex
Rotational velocity (v sin i)144[6] km/s
Age125+75
−25[10] Myr
Other designations
l Per, 32 Per, NSV 1107, BD+42°750, FK5 2236, GC 4004, HD 20677, HIP 15648, HR 1002, SAO 38750[11]
Database references
SIMBADdata

32 Persei is a single[12] star located 149[1] light years away from the Sun in the northern constellation of Perseus.[11] It has the Bayer designation of l Persei, while 32 Persei is the Flamsteed designation. This object is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 4.96.[2] It is moving closer to the Earth with a heliocentric radial velocity of −9 km/s,[5] and is a member of the Sirius supercluster: a stream of stars that share a common motion through space.[13]

This is an ordinary A-type main-sequence star with a stellar classification of A3V.[3] It is around 125[10] million years old with a high rate of spin, showing a projected rotational velocity of 144 km/s.[6] The star has double[6] the mass of the Sun and 1.8[7] times the Sun's radius. It is radiating 21[6] times the luminosity of the Sun from its photosphere at an effective temperature of 8,872 K.[6]

  1. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference XHIP was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Cowley1969 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Mallama2014 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. ^ a b c d e f g h Cite error: The named reference Zorec2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference AllendePrieto was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference David2015 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Gontcharov2012 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference Meshkat2017 was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Palous1986 was invoked but never defined (see the help page).
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