Astronomy:HD 211392

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Short description: Suspected variable star in the constellation Aquarius
HD 211392
Observation data
Equinox J2000.0]] (ICRS)
Constellation Aquarius[1]
Right ascension  22h 16m 52.56734s[2]
Declination −09° 02′ 24.1971″[2]
Apparent magnitude (V) 5.96[3]
Characteristics
Spectral type K3III[3]
U−B color index +1.14[4]
B−V color index +1.16[4]
Astrometry
Radial velocity (Rv)12.1[5] km/s
Proper motion (μ) RA: −57.013[2] mas/yr
Dec.: −10.167[2] mas/yr
Parallax (π)9.4163 ± 0.0629[2] mas
Distance346 ± 2 ly
(106.2 ± 0.7 pc)
Absolute magnitude (MV)+0.54[1]
Details
Mass1.5[6] M☉
Radius13[2] R☉
Luminosity69[6] L☉
Surface gravity (log g)2.11[7] cgs
Temperature4,540[6] K
Metallicity [Fe/H]0.01[7] dex
Age3.1[2] Gyr
Other designations
BD−09°5948, HD 211392, HIP 110009, HR 8500, SAO 145992
Database references
SIMBADdata
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

HD 211392 is a suspected[8] variable star in the equatorial constellation of Aquarius, positioned about 346 light-years away.[2] With an apparent magnitude close to six, according to the Bortle scale it is just visible to the naked eye from dark, rural skies. It is a giant star with a stellar classification of K3III.[3]

References

  1. ↑ 1.0 1.1 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  3. ↑ 3.0 3.1 3.2 Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society 389 (2): 869–879, doi:10.1111/j.1365-2966.2008.13596.x, Bibcode: 2008MNRAS.389..869E 
  4. ↑ 4.0 4.1 Johnson, H. L. et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory 4 (99): 99, Bibcode: 1966CoLPL...4...99J 
  5. ↑ Wilson, R. E. (1953), "General Catalogue of Stellar Radial Velocities", Carnegie Institute Washington D.C. Publication (Carnegie Institute of Washington D.C.), Bibcode: 1953GCRV..C......0W 
  6. ↑ 6.0 6.1 6.2 Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R. et al. (2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy and Astrophysics 633: A34. doi:10.1051/0004-6361/201936360. Bibcode: 2020A&A...633A..34C. 
  7. ↑ 7.0 7.1 Soubiran, C.; Brouillet, N.; Casamiquela, L. (2022). "Assessment of [Fe/H] determinations for FGK stars in spectroscopic surveys". Astronomy and Astrophysics 663: A4. doi:10.1051/0004-6361/202142409. Bibcode: 2022A&A...663A...4S. 
  8. ↑ Kukarkin, B. V. et al. (1981), "Nachrichtenblatt der Vereinigung der Sternfreunde e.V. (Catalogue of suspected variable stars)", Nachrichtenblatt der Vereinigung der Sternfreunde E.V. (1981) (Moscow: Academy of Sciences USSR Shternberg), Bibcode: 1981NVS...C......0K 



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