HD 32515

HD 32515
Observation data
Epoch J2000      Equinox J2000
Constellation Caelum
Right ascension 05h 02m 22.8045s[1]
Declination −31° 46′ 16.8028″[1]
Apparent magnitude (V) 5.90 ± 0.01[2]
Characteristics
Spectral type K2 III[3]
B−V color index +1.17[4]
Astrometry
Radial velocity (Rv)29 ± 4[5] km/s
Proper motion (μ) RA: −6.866[1] mas/yr
Dec.: +84.982[1] mas/yr
Parallax (π)10.0579 ± 0.0324 mas[1]
Distance324 ± 1 ly
(99.4 ± 0.3 pc)
Absolute magnitude (MV)+0.91
Details
Mass1.52[6] M☉
Radius11.9[1] R☉
Luminosity56.3+2.6
−2.5[7] L☉
Surface gravity (log g)2.44+0.11
−0.10[8] cgs
Temperature4540 ± 100[7] K
Metallicity [Fe/H]0.00[7] dex
Rotational velocity (v sin i)1.4±1.2[9] km/s
Age4.59[6] Gyr
Other designations
26 G. Caeli, CD−31° 2163, CPD−31° 684, GC 6169, HD 32515, HIP 23446, HR 1635, SAO 195509
Database references
SIMBADdata

HD 32515 (HR 1635) is a solitary star located in the southern constellation Caelum. It has an apparent magnitude of 5.9,[2] making it faintly visible to the naked eye under ideal conditions. The star is situated at a distance of 326 light years[1] but is recceding with a heliocentric radial velocity of 29.4 km/s.[5]

HD 32515 has a stellar classification of K2 III,[3] indicating that it is an early K-type giant star. HD 32515 has an angular diameter of 1.03±0.07 mas[10] (after limb darkening correction); this yields a diameter 11.9 times that of the Sun at its estimated distance. At present, it has 152%[6] of the Sun's mass and shines at 56.3[7] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,540 K,[7] giving it an orange glow. HD 32515 has a similar metallicity[7] and age[6] to the Sun and spins slowly with a projected rotational velocity of 1.4 km/s

  1. ^ a b c d e f g Cite error: The named reference DR3 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Tycho2000 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Houk1982 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Johnson1966 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 Cite error: The named reference Luck2015 was invoked but never defined (see the help page).
  7. ^ a b c d e f Cite error: The named reference Char2020 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Anders2019 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Mederios2014 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Lafrasse2010 was invoked but never defined (see the help page).