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HD 220466

From Wikipedia, the free encyclopedia
Star in the constellation Aquarius
HD 220466
Observation data
EpochJ2000.0      EquinoxJ2000.0 (ICRS)
ConstellationAquarius
Right ascension23h 24m 03.97947s[1]
Declination−21° 46′ 27.8819″[1]
Apparent magnitude (V)6.50[2]
Characteristics
Spectral typeF3IV/V[3]
U−Bcolor index−0.03[2]
B−Vcolor 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 aF-typesubgiant ormain sequencestar in the constellationAquarius. It hasapparent magnitude 6.47 and is about 200light-years away.[1] In 1913, an apparentvisual companion of apparent magnitude 10.3 was observed 1.9arcseconds away from the star,[7] but it is doubtful whether it exists.[8]

References

[edit]
  1. ^abcdefvan Leeuwen, F. (2007). "Validation of the new Hipparcos reduction".Astronomy and Astrophysics.474 (2):653–664.arXiv:0708.1752.Bibcode:2007A&A...474..653V.doi:10.1051/0004-6361:20078357.S2CID 18759600.
  2. ^abcMermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)",Catalogue of Eggen's UBV Data. SIMBAD,Bibcode:1986EgUBV........0M
  3. ^Houk, Nancy; Smith-Moore, M. (1978),Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 4, Ann Arbor: Dept. of Astronomy, University of Michigan,Bibcode:1988mcts.book.....H
  4. ^Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system".Astronomy Letters.32 (11):759–771.arXiv:1606.08053.Bibcode:2006AstL...32..759G.doi:10.1134/S1063773706110065.S2CID 119231169.
  5. ^abcdHolmberg, J.; Nordström, B.; Andersen, J. (July 2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics",Astronomy and Astrophysics,501 (3):941–947,arXiv:0811.3982,Bibcode:2009A&A...501..941H,doi:10.1051/0004-6361/200811191,S2CID 118577511
  6. ^HD 220466, database entry, The Geneva-Copenhagen Survey of Solar neighbourhood, J. Holmberg et al., 2007,CDS IDV/117A. Accessed on line November 19, 2008.
  7. ^CCDM 23241-2146, database entry,Catalog of Components of Double and Multiple Stars,CDS IDI/211. Accessed on line July 22, 2008.
  8. ^23241-2146, entry, Notes fileArchived 2008-04-13 at theWayback Machine,Washington Double Star Catalogue. Accessed on line July 22, 2008.

External links

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