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54 Persei

54 Persei
Location of 54 Persei (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Perseus
Right ascension 04h 20m 24.63885s[1]
Declination 34° 34′ 00.2033″[1]
Apparent magnitude (V) 4.93[2]
Characteristics
Spectral type G8+ IIIb[3]
U−B color index +0.69[4]
B−V color index +0.95[4]
Astrometry
Radial velocity (Rv)−26.82[5] km/s
Proper motion (μ) RA: −25.046[1] mas/yr
Dec.: −6.420[1] mas/yr
Parallax (π)14.8484 ± 0.1993 mas[1]
Distance220 ± 3 ly
(67.3 ± 0.9 pc)
Absolute magnitude (MV)0.80[6]
Details[7]
Mass2.57±0.10 M☉
Radius9.37±0.22 R☉
Luminosity50.7±2.0 L☉
Surface gravity (log g)2.93±0.03 cgs
Temperature5,036±32 K
Metallicity [Fe/H]+0.11±0.10 dex
Rotational velocity (v sin i)1.8[8] km/s
Age580±90 Myr
Other designations
54 Per, BD+34°860, FK5 158, GC 5235, HD 27348, HIP 20252, HR 1343, SAO 57171, CCDM J04204+3435A, WDS J04204+3434A[9]
Database references
SIMBADdata

54 Persei is a single[10] star in the northern constellation of Perseus. It is visible to the naked eye as a faint, yellow-hued star with an apparent visual magnitude of 4.93.[2] The star is located approximately 220 light years away based on parallax, but is drifting closer with a radial velocity of −27 km/s.[5]

This is an aging giant star with a stellar classification of G8+ IIIb,[3] a star that has exhausted the supply of hydrogen at its core and expanded to more than nine times the girth of the Sun. It is around 580 million years old with 2.6 times the mass of the Sun. The star is radiating 51 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 5,036 K.[7] It has one distant visual companion, designated component B, at an angular separation of 93″ and magnitude 13.0.[11]

  1. ^ a b c d e Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference XHIP was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Keenan1989 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference MermiliodUBV was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Jofre2015 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference DaSilva2015 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Reffert2015 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference deMedeiros1999 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference mnras389_2_869 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference WDS was invoked but never defined (see the help page).
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