HD 220466

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HD 220466
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Aquarius
Right ascension 23h 24m 03.9805s[1]
Declination −21° 46′ 27.881″[1]
Apparent magnitude (V) 6.467[1]
Characteristics
Spectral type F3IV/V[1]
B−V color index 0.4[1]
Astrometry
Radial velocity (Rv) 24.5[1] km/s
Proper motion (μ) RA: −66.12[1] mas/yr
Dec.: −77.43[1] mas/yr
Parallax (π) 15.99 ± 0.85[1] mas
Distance 200 ± 10 ly
(63 ± 3 pc)
Absolute magnitude (MV) 2.7[2]
Details
Mass 1.47 (1.41 to 1.52)[3] M
Temperature 6460[3] K
Metallicity [Fe/H] = −0.18[3]
Age (2.0 ± 0.1) × 109  [3] years
Other designations
CCDM J23241-2146AB, GC 32560, HIP 115522, SRS 18037, I 1058AB, GCRV 14676, IDS 23188-2219, TD1 29823, ADS 16727 AB, 2MASS J23240398-2146276, TYC 6402-1225-1, BD−22°6119, GSC 06402-01225, PPM 274913, uvby98 100220466 AB, CD−22°16306, SAO 191873, YZ 112 15675, CPD−22°8355.[1]
Database references
SIMBAD data

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,[4] but it is doubtful whether it actually exists.[5]

References[edit]

  1. ^ a b c d e f g h i j k HD 220466, database entry, SIMBAD. Accessed on line July 22, 2008.
  2. ^ From parallax and apparent magnitude.
  3. ^ a b c d 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.
  4. ^ CCDM 23241-2146, database entry, Catalog of Components of Double and Multiple Stars, CDS ID I/211. Accessed on line July 22, 2008.
  5. ^ 23241-2146, entry, Notes file, Washington Double Star Catalogue. Accessed on line July 22, 2008.

External links[edit]