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HD 50002

HD 50002
Observation data
Epoch J2000      Equinox J2000
Constellation Volans
Right ascension 06h 44m 55.6456s[1]
Declination −70° 26′ 01.5272″[1]
Apparent magnitude (V) 6.09±0.01[2]
Characteristics
Spectral type K3 III[3]
U−B color index +1.50[4]
B−V color index +1.33[4]
Astrometry
Radial velocity (Rv)5.1±0.4[5] km/s
Proper motion (μ) RA: −16.313 mas/yr[1]
Dec.: +6.287 mas/yr[1]
Parallax (π)4.6072 ± 0.032 mas[1]
Distance708 ± 5 ly
(217 ± 2 pc)
Absolute magnitude (MV)−0.35[6]
Details
Mass1.23[7] M☉
Radius27.86[8] R☉
Luminosity257±5[9] L☉
Surface gravity (log g)1.59[7] cgs
Temperature4,444±122[10] K
Metallicity [Fe/H]+0.22[11] dex
Rotational velocity (v sin i)<1[12] km/s
Other designations
4 G. Volantis, CPD−70°560, GC 8895, HD 50002, HIP 32332, HR 2536, SAO 256331[13][14]
Database references
SIMBADdata

HD 50002 (HR 2536) is a solitary star in the southern circumpolar constellation Volans. It is faintly visible to the naked eye with an apparent magnitude of 6.09[2] and is located at a distance of 708 light years.[1] However, it is drifting further with a heliocentric radial velocity of 5.1 km/s.[5]

HD 50002 has a classification of K3 III,[3] indicating that it is a red giant. HD 50002 has a comparable mass to the Sun,[7] but has expanded to an enlarged radius of 27.9 R☉.[8] It radiates at 257 times the luminosity of the Sun[9] from its photosphere at an effective temperature of 4,444 K,[10] giving an orange hue. HD 50002 is metal enriched, with 166% the abundance of heavy metals compared to the Sun,[11] and has a projected rotational velocity too low to be measured accurately.[12]

  1. ^ a b c d e Cite error: The named reference GaiaEDR3 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 Houk1975 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Cousins1962 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. ^ Cite error: The named reference XHIP was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Anders2019 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Kervella2021 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference Stassun2019 was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference Eggen1994 was invoked but never defined (see the help page).
  12. ^ a b Cite error: The named reference DeMed2014 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Gould1879 was invoked but never defined (see the help page).
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