HD 220466

Last updated
HD 220466
Observation data
Epoch J2000.0        Equinox J2000.0 (ICRS)
Constellation Aquarius [1]
Right ascension 23h 24m 03.97937s [2]
Declination −21° 46′ 27.8824″ [2]
Apparent magnitude  (V)6.50 [3]
Characteristics
Evolutionary stage main sequence [4] [2]
Spectral type F3IV/V [5]
U−B color index −0.03 [3]
B−V color index +0.42 [3]
Astrometry
Radial velocity (Rv)24.5 [6] km/s
Proper motion (μ)RA: −68.050 [2] mas/yr
Dec.: −77.697 [2] mas/yr
Parallax (π)15.3570±0.0292  mas [2]
Distance 212.4 ± 0.4  ly
(65.1 ± 0.1  pc)
Absolute magnitude  (MV)2.50 [7]
Details
Mass 1.4 [8]   M☉
Radius 2.3 [8]   R☉
Luminosity 8.8 [8]   L☉
Surface gravity (log g)3.86 [8]   cgs
Temperature 6,580 [8]   K
Metallicity [Fe/H]−0.18 [7]   dex
Age 2.0 [7]   Gyr
Other designations
BD−22°6119, HD 220466, HIP  115522, SAO  191873
Database references
SIMBAD data

HD 220466 is an F-type main sequence star in the constellation Aquarius. It has apparent magnitude 6.5 and is about 212 light-years away.

In 1913, an apparent visual companion of apparent magnitude 10.3 was observed 1.9 arcseconds away from the star, [9] but it is doubtful whether it exists. [10]

The 17th-magnitude red dwarf UCAC4 342-200228 18″ away from HD 220466 forms a common proper motion pairing. [4] [11] Any orbit would take tens of thousands of years. [11]

References

  1. ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific . 99 (617): 695. Bibcode:1987PASP...99..695R. doi: 10.1086/132034 . Constellation record for this object at VizieR.
  2. 1 2 3 4 5 6 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211 . Bibcode:2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940 . S2CID   244398875. Gaia DR3 record for this source at VizieR.
  3. 1 2 3 Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. SIMBAD. Bibcode:1986EgUBV........0M.
  4. 1 2 Sapozhnikov, S. A.; Kovaleva, D. A.; Malkov, O. Yu.; Sytov, A. Yu. (2020). "Binary Star Population with Common Proper Motion in Gaia DR2". Astronomy Reports. 64 (9): 756–768. arXiv: 2012.06115 . Bibcode:2020ARep...64..756S. doi:10.1134/S1063772920100078.
  5. ↑ 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.
  6. ↑ 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.
  7. 1 2 3 Holmberg, 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.
  8. 1 2 3 4 5 Stassun, K.G.; et al. (October 2019). "The revised TESS Input Catalog and Candidate Target List". The Astronomical Journal . 158 (4): 138. arXiv: 1905.10694 . Bibcode:2019AJ....158..138S. doi: 10.3847/1538-3881/ab3467 . S2CID   166227927.
  9. ↑ CCDM 23241-2146, database entry, Catalog of Components of Double and Multiple Stars, CDS ID I/211. Accessed on line July 22, 2008.
  10. ↑ 23241-2146, entry, Notes file Archived 2008-04-13 at the Wayback Machine , Washington Double Star Catalogue. Accessed on line July 22, 2008.
  11. 1 2 Tokovinin, Andrei (2018). "The Updated Multiple Star Catalog". The Astrophysical Journal Supplement Series. 235: 6. arXiv: 1712.04750 . Bibcode:2018ApJS..235....6T. doi: 10.3847/1538-4365/aaa1a5 .
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