HD 211392

HD 211392
Observation data; Epoch J2000 Equinox J2000
Constellation	Aquarius
Right ascension	22h 16m 52.56734s
Declination	−09° 02′ 24.1971″
Apparent magnitude (V)	5.96
Characteristics
Spectral type	K3III
U−B color index	+1.14
B−V color index	+1.16
Astrometry
Radial velocity (Rv)	12.1 km/s
Proper motion (μ)	RA: −57.013 mas/yr ; Dec.: −10.167 mas/yr
Parallax (π)	9.4163±0.0629 mas
Distance	346 ± 2 ly ; (106.2 ± 0.7 pc)
Absolute magnitude (MV)	+0.54
Details
Mass	1.5 M☉
Radius	13 R☉
Luminosity	69 L☉
Surface gravity (log g)	2.11 cgs
Temperature	4,540 K
Metallicity [Fe/H]	0.01 dex
Age	3.1 Gyr
Other designations
	BD−09°5948, HD 211392, HIP 110009, HR 8500, SAO 145992
Database references
SIMBAD	data
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

^ ^a ^b Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015.
^ ^a ^b ^c ^d ^e ^f ^g ^h 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.
^ ^a ^b ^c 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, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976
^ ^a ^b 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
^ 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
^ ^a ^b ^c Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy and Astrophysics. 633: A34. arXiv:1910.12732. Bibcode:2020A&A...633A..34C. doi:10.1051/0004-6361/201936360.
^ ^a ^b Soubiran, C.; Brouillet, N.; Casamiquela, L. (2022). "Assessment of [Fe/H] determinations for FGK stars in spectroscopic surveys". Astronomy and Astrophysics. 663: A4. arXiv:2112.07545. Bibcode:2022A&A...663A...4S. doi:10.1051/0004-6361/202142409.
^ 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

External links

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[xhip-1] Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015.

[dr3-2] ^ ^a ^b ^c ^d ^e ^f ^g ^h 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.

[mnras389_2_869-3] 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, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976

[clpl4_99-4] 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

[gcsrv-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

[charbonnel2020-6] Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy and Astrophysics. 633: A34. arXiv:1910.12732. Bibcode:2020A&A...633A..34C. doi:10.1051/0004-6361/201936360.

[soubiran2022-7] Soubiran, C.; Brouillet, N.; Casamiquela, L. (2022). "Assessment of [Fe/H] determinations for FGK stars in spectroscopic surveys". Astronomy and Astrophysics. 663: A4. arXiv:2112.07545. Bibcode:2022A&A...663A...4S. doi:10.1051/0004-6361/202142409.

[csvs-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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Observation data Epoch J2000 Equinox J2000
Constellation	Aquarius^[1]
Right ascension	22^h 16^m 52.56734^s^[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 (R_v)	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 mas^[2]
Distance	346 ± 2 ly (106.2 ± 0.7 pc)
Absolute magnitude (M_V)	+0.54^[1]

Details

Mass	1.5^[6] `M`_☉
Radius	13^[2] `R`_☉
Luminosity	69^[6] `L`_☉
Surface gravity (log g)	2.11^[7] cgs
Temperature	4,540^[6] K
Metallicity [Fe/H]	0.01^[7] dex
Age	3.1^[2] Gyr

Other designations
BD−09°5948, HD 211392, HIP 110009, HR 8500, SAO 145992
Database references
SIMBAD	data
Data sources:
Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.)