32 Andromedae

32 Andromedae
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 00h 41m 07.18431s[1]
Declination +39° 27′ 31.1886″[1]
Apparent magnitude (V) 5.30[2]
Characteristics
Evolutionary stage giant star
Spectral type G8 III[3]
B−V color index 0.891±0.004[2]
Astrometry
Radial velocity (Rv)−5.1±0.3[4] km/s
Proper motion (μ) RA: −14.083[1] mas/yr
Dec.: −3.218[1] mas/yr
Parallax (π)9.8414 ± 0.1485 mas[1]
Distance331 ± 5 ly
(102 ± 2 pc)
Absolute magnitude (MV)0.12[2]
Details[5]
Mass2.81±0.12 M☉
Radius12.16±0.51 R☉
Luminosity90.2±7.2 L☉
Surface gravity (log g)2.73±0.04 cgs
Temperature5,107±37 K
Metallicity [Fe/H]−0.15±0.10 dex
Rotational velocity (v sin i)1.7[6] km/s
Age420±40 Myr
Other designations
32 And, BD+38° 90, FK5 2043, HD 3817, HIP 3231, HR 175, SAO 54079, PPM 65538[7]
Database references
SIMBADdata

32 Andromedae, abbreviated 32 And, is a star in the northern constellation of Andromeda. 32 Andromedae is the Flamsteed designation. It is faintly visible to the naked eye with an apparent visual magnitude is 5.30.[2] The distance to 32 And, as estimated from its annual parallax shift of 9.8 mas,[1] is around 331 light years. It is moving closer to the Earth with a heliocentric radial velocity of −5 km/s.[4]

With an age of 420 million years, this is a red giant star with a stellar classification of G8 III,[3] indicating it has consumed the hydrogen at its core and evolved off the main sequence. It has 2.8 times the mass of the Sun and has expanded to 12 times the Sun's radius. The star is radiating 90 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 5,107 K.[5]

  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 Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Harlan1981 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Reffert2015 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference DeMedeiros2000 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).