HD 32820

HD 32820
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Caelum
Right ascension 05h 03m 53.95236s[1]
Declination −41° 44′ 41.8259″[1]
Apparent magnitude (V) 6.30±0.01[2]
Characteristics
Spectral type F8 V[3][4]
U−B color index +0.04[5]
B−V color index +0.53[5]
Astrometry
Radial velocity (Rv)29.8±0.9[6] km/s
Proper motion (μ) RA: +22.005 mas/yr[1]
Dec.: +158.650 mas/yr[1]
Parallax (π)31.6204 ± 0.0176 mas[1]
Distance103.15 ± 0.06 ly
(31.63 ± 0.02 pc)
Absolute magnitude (MV)+3.79[7]
Details
Mass1.25[8] M☉
Radius1.33±0.03[9] R☉
Luminosity2.44±0.01[1] L☉
Surface gravity (log g)4.25[10] cgs
Temperature6,227±68[9] K
Metallicity [Fe/H]−0.04[11] dex
Rotational velocity (v sin i)8[12] km/s
Age3.46[11] Gyr
Other designations
27 G. Caeli[13], CD−41°1690, CPD−41°621, GC 6204, HD 32820, HIP 23555, HR 1651, SAO 217153[14]
Database references
SIMBADdata

HD 32820, also known as HR 1651, is a yellowish-white hued star located in the southern constellation Caelum, the chisel. It has an apparent magnitude of 6.3,[2] placing it near the limit of naked eye visibility. The object is located relatively close at a distance of 103 light years based on parallax measurements from Gaia DR3,[1] but is receding with a heliocentric radial velocity of 29.8 km/s.[6]

HD 32820 has a stellar classification of F8 V,[3][4] indicating that it is an ordinary F-type main-sequence star that is generating energy via hydrogen fusion at its core. It has 125% the mass of the Sun[8] and 133% of its radius.[9] It radiates double the luminosity of the Sun[1] from its photosphere at an effective temperature of 6,227 K.[9] HD 32820 is said to be 3.46 billion years old,[11] slightly younger than the Sun, and has a near solar iron abundance.[11] The star spins modestly with a projected rotational velocity of 8 km/s[12] and is chromospherically inactive[15]

  1. ^ a b c d e f g Cite error: The named reference GaiaDR3 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 Malaroda1975 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Gray2006 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Cousins1969 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Steinmetz2020 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference XHIP was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Mortier2013 was invoked but never defined (see the help page).
  9. ^ a b c d Cite error: The named reference Masana2006 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference AP1999 was invoked but never defined (see the help page).
  11. ^ a b c d Cite error: The named reference Ibukiyama2002 was invoked but never defined (see the help page).
  12. ^ a b Cite error: The named reference Nordstrom2004 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Gould1879 was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  15. ^ Cite error: The named reference Pace2013 was invoked but never defined (see the help page).