58 Andromedae

58 Andromedae
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 02h 08m 29.25999s[1]
Declination +37° 51′ 32.6861″[1]
Apparent magnitude (V) 4.78[2]
Characteristics
Spectral type A5 IV-V[3]
B−V color index 0.120±0.003[2]
Astrometry
Radial velocity (Rv)7.60±1.78[2] km/s
Proper motion (μ) RA: +154.296[1] mas/yr
Dec.: −43.304[1] mas/yr
Parallax (π)17.5326 ± 0.2911 mas[1]
Distance186 ± 3 ly
(57.0 ± 0.9 pc)
Absolute magnitude (MV)0.94[2]
Details[4]
Mass2.00 M☉
Radius1.9[5] R☉
Luminosity35.55[2] L☉
Surface gravity (log g)3.89±0.14 cgs
Temperature8,875±302 K
Metallicity [Fe/H]−0.98[6] dex
Rotational velocity (v sin i)135[7] km/s
Age425 Myr
Other designations
58 And, BD+37° 486, HD 13041, HIP 9977, HR 620, SAO 55289, PPM 66995[8]
Database references
SIMBADdata

58 Andromedae, abbreviated 58 And, is a single[9] star in the northern constellation Andromeda. 58 Andromedae is the Flamsteed designation. It is visible to the naked eye with an apparent visual magnitude of 4.78[2] The distance to this star, as determined from its annual parallax shift of 17.5 mas,[1] is 186 light years. 58 And is moving further from the Earth with a heliocentric radial velocity of +8 km/s.[2] It has a relatively high proper motion, traversing the celestial sphere at the rate of 0.159″ per year.[10]

This star is 425 million years old with a stellar classification of A5 IV-V,[3] indicating the spectrum displays mixed traits of an A-type main-sequence star and an older subgiant star. It is spinning rapidly with a projected rotational velocity of 135 km/s, which is giving the star an oblate shape with an equatorial bulge that is 6% larger than the polar radius.[7] The star has double[4] the mass of the Sun and about 1.9[5] times the Sun's radius. It is radiating 36[2] times the Sun's luminosity from its photosphere at an effective temperature of 8,875 K.[4]

  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 d e f g h Cite error: The named reference Anderson2012 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 c Cite error: The named reference David2015 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference cadars2001 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference gebran2016 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference vanBelle2012 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference DeRosa2014 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Lepine2005 was invoked but never defined (see the help page).