HD 23005

HD 23005
Location of HD 23005 on the map (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Camelopardalis
Right ascension 03h 46m 00.94002s[1]
Declination +67° 12′ 05.7682″[1]
Apparent magnitude (V) 5.78±0.01[2]
Characteristics
Spectral type F1 IVnn[3]
U−B color index +0.05[4]
B−V color index +0.34[4]
Variable type candidate γ Doradus[3]
Astrometry
Radial velocity (Rv)4.9±1.5[5] km/s
Proper motion (μ) RA: +82.853 mas/yr[1]
Dec.: −113.717 mas/yr[1]
Parallax (π)18.8168 ± 0.0313 mas[1]
Distance173.3 ± 0.3 ly
(53.14 ± 0.09 pc)
Absolute magnitude (MV)+2.07[6]
Details
Mass1.69±0.07[7] M☉
Radius2.26±0.11[8] R☉
Luminosity10.93±0.04[1] L☉
Surface gravity (log g)3.9±0.1[9] cgs
Temperature6,976±80[10] K
Metallicity [Fe/H]+0.15[11] dex
Rotational velocity (v sin i)66±7[12] km/s
Age1.1±0.1[13] Gyr
Other designations
AG+67°197, BD+66°284, FK5 2267, GC 4463, HD 23005, HIP 17585, HR 1124, SAO 12890[14]
Database references
SIMBADdata

HD 23005, also known as HR 1124, is a solitary,[15] yellowish-white hued star located in the northern circumpolar constellation Camelopardalis, the giraffe. It has an apparent magnitude of 5.78, making it faintly visible to the naked eye. The object is located relatively close at a distance of 173 light years based on Gaia DR3 parallax measurements but is receding with a heliocentric radial velocity of 4.9 km/s.[5] At its current distance, HD 23005's brightness is diminished by 0.15 magnitudes due to extinction from interstellar dust.[16] It has an absolute magnitude of +2.07.[6]

The star has been given several stellar classifications over the years. It has been given a luminosity class of a subgiant (IV),[17] a blend of a subgiant and main sequence star (IV/V),[18] and a class intermediate between a bright giant and a regular giant star (II-III).[19] Most sources generally agree that it is an early F-type star.

HD 23005's newest spectral class is F1 IVnn, which indicates that it is an evolved F-type subgiant with very broad absorption features due to rapid rotation. It has 1.69 times the mass of the Sun[7] and an enlarged radius of 2.26 R☉.[8] It radiates 10.9 times the luminosity of the Sun[1] from its photosphere at an effective temperature of 6,976 K.[10] HD 23005 has an iron abundance 141% that of the Sun's[11] and is estimated to be 1.1 billion years old.[13] Contrary to its suffix, the star spins modestly with a projected rotational velocity of 66 km/s. [12] A 2016 variable star survey identified HD 23005 as a candidate γ Doradus variable.[3]

  1. ^ a b c d e f Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Tycho2000 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Karhman2016 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Imagawa1967 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 Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference AP1999 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Kervella2004 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Stassun2019 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference Casagrande2011 was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference Netopil2017 was invoked but never defined (see the help page).
  12. ^ a b Cite error: The named reference De Medeiros2014 was invoked but never defined (see the help page).
  13. ^ a b Cite error: The named reference Nordstrom2004 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 Eggleton2008 was invoked but never defined (see the help page).
  16. ^ Cite error: The named reference Gontcharov2017 was invoked but never defined (see the help page).
  17. ^ Cite error: The named reference Appenzeller1967 was invoked but never defined (see the help page).
  18. ^ Cite error: The named reference Adams1935 was invoked but never defined (see the help page).
  19. ^ Cite error: The named reference Cowley1976 was invoked but never defined (see the help page).