HD 220466

HD 220466
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Aquarius
Right ascension 23h 24m 03.97947s[1]
Declination −21° 46′ 27.8819″[1]
Apparent magnitude (V) 6.50[2]
Characteristics
Spectral type F3IV/V[3]
U−B color index −0.03[2]
B−V color index +0.42[2]
Astrometry
Radial velocity (Rv)24.5[4] km/s
Proper motion (μ) RA: −67.70[1] mas/yr
Dec.: −77.45[1] mas/yr
Parallax (π)15.99 ± 0.72 mas[1]
Distance204 ± 9 ly
(63 ± 3 pc)
Absolute magnitude (MV)2.50[5]
Details
Mass1.47 (1.41 to 1.52)[6] M☉
Temperature6,456[5] K
Metallicity [Fe/H]−0.18[5] dex
Age2.0[5] Gyr
Other designations
BD−22°6119, HD 220466, HIP 115522, SAO 191873.
Database references
SIMBADdata

HD 220466 is a F-type subgiant or main sequence star in the constellation Aquarius. It has apparent magnitude 6.47 and is about 200 light-years away.[1] In 1913, an apparent visual companion of apparent magnitude 10.3 was observed 1.9 arcseconds away from the star,[7] but it is doubtful whether it exists.[8]

  1. ^ a b c d e f Cite error: The named reference van Leeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference MERMILLIOD was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference houk1978 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Gontcharov was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference cgssn09 was invoked but never defined (see the help page).
  6. ^ HD 220466, database entry, The Geneva-Copenhagen Survey of Solar neighbourhood, J. Holmberg et al., 2007, CDS ID V/117A. Accessed on line November 19, 2008.
  7. ^ CCDM 23241-2146, database entry, Catalog of Components of Double and Multiple Stars, CDS ID I/211. Accessed on line July 22, 2008.
  8. ^ 23241-2146, entry, Notes file Archived 2008-04-13 at the Wayback Machine, Washington Double Star Catalogue. Accessed on line July 22, 2008.