HD_214810 References

HD 214810
Observation data; Epoch J2000 Equinox J2000
Constellation	Aquarius
Right ascension	22h 40m 47.95600s
Declination	−03° 33′ 15.2789″
Apparent magnitude (V)	6.32 (6.52 + 8.63)
Characteristics
Spectral type	G9 V Fe-0.7
U−B color index	−0.02
B−V color index	+0.52
Astrometry
Radial velocity (Rv)	13.73 km/s
Proper motion (μ)	RA: -7.52 mas/ yr ; Dec.: -45.25 mas/ yr
Parallax (π)	28.93 ± 0.77 mas
Distance	113 ± 3 ly ; (34.6 ± 0.9 pc)
Orbit
Period (P)	54.57 ± 0.30 yr
Semi-major axis (a)	0.367 ± 0.003″
Eccentricity (e)	0.005 ± 0.003
Inclination (i)	87.5 ± 0.5°
Longitude of the node (Ω)	128.9 ± 0.5°
Periastron epoch (T)	B 1969.38 ± 1.5
Argument of periastron (ω); (secondary)	12.9 ± 20.0°
Details
HD 214810 A
Mass	1.26 M☉
Surface gravity (log g)	4.19 cgs
Temperature	6,151 K
Metallicity [Fe/H]	−0.22 dex
Age	3.7 Gyr
HD 214810 B
Mass	0.87 M☉
Other designations
	BD-04° 5728, HD 214810, HIP 111965, HR 8629, SAO 146239.
Database references
SIMBAD	data

HD 214810 is a visual binary star in the equatorial constellation of Aquarius. The pair orbit each other with a period of about 54.2 years.^[2]

References

^ ^a ^b ^c ^d ^e van 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
^ ^a ^b Cvetkovic, Z.; Ninkovic, S. (2010), "On the Component Masses of Visual Binaries", Serbian Astronomical Journal, 180 (180): 71–80, Bibcode: 2010SerAJ.180...71C, doi: 10.2298/SAJ1080071C
^ ^a ^b ^c ^d Gray, R. O.; et al. (July 2006), "Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample", The Astronomical Journal, 132 (1): 161–170, arXiv: astro-ph/0603770, Bibcode: 2006AJ....132..161G, doi: 10.1086/504637, S2CID 119476992
^ ^a ^b Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode: 1986EgUBV........0M
^ "Sixth Catalog of Orbits of Visual Binary Stars". United States Naval Observatory. Archived from the original on 1 August 2017. Retrieved 21 May 2017.
^ ^a ^b Tokovinin, Andrei (April 2014), "From Binaries to Multiples. II. Hierarchical Multiplicity of F and G Dwarfs", The Astronomical Journal, 147 (4): 14, arXiv: 1401.6827, Bibcode: 2014AJ....147...87T, doi: 10.1088/0004-6256/147/4/87, S2CID 56066740, 87
^ 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

External links

Image HD 214810

This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it.

[van_Leeuwen2007-1] van 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

[Cvetkovic2010-2] Cvetkovic, Z.; Ninkovic, S. (2010), "On the Component Masses of Visual Binaries", Serbian Astronomical Journal, 180 (180): 71–80, Bibcode: 2010SerAJ.180...71C, doi: 10.2298/SAJ1080071C

[aj132_1_161-3] Gray, R. O.; et al. (July 2006), "Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample", The Astronomical Journal, 132 (1): 161–170, arXiv: astro-ph/0603770, Bibcode: 2006AJ....132..161G, doi: 10.1086/504637, S2CID 119476992

[MERMILLIOD-4] Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode: 1986EgUBV........0M

[ORB6-5] "Sixth Catalog of Orbits of Visual Binary Stars". United States Naval Observatory. Archived from the original on 1 August 2017. Retrieved 21 May 2017.

[aj147_4_87-6] Tokovinin, Andrei (April 2014), "From Binaries to Multiples. II. Hierarchical Multiplicity of F and G Dwarfs", The Astronomical Journal, 147 (4): 14, arXiv: 1401.6827, Bibcode: 2014AJ....147...87T, doi: 10.1088/0004-6256/147/4/87, S2CID 56066740, 87

[cgssn09-7] 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

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Observation data Epoch J2000 Equinox J2000
Constellation	Aquarius
Right ascension	22^h 40^m 47.95600^s^[1]
Declination	−03° 33′ 15.2789″^[1]
Apparent magnitude (V)	6.32 (6.52 + 8.63)^[2]
Characteristics
Spectral type	G9 V Fe-0.7^[3]
U−B color index	−0.02^[4]
B−V color index	+0.52^[4]
Astrometry

Radial velocity (R_v)	13.73 km/s
Proper motion (μ)	RA: -7.52^[1] mas/ yr Dec.: -45.25^[1] mas/ yr
Parallax (π)	28.93 ± 0.77 mas^[1]
Distance	113 ± 3 ly (34.6 ± 0.9 pc)

Orbit^[5]
Period (P)	54.57 ± 0.30 yr
Semi-major axis (a)	0.367 ± 0.003″
Eccentricity (e)	0.005 ± 0.003
Inclination (i)	87.5 ± 0.5°
Longitude of the node (Ω)	128.9 ± 0.5°
Periastron epoch (T)	B 1969.38 ± 1.5
Argument of periastron (ω) (secondary)	12.9 ± 20.0°
Details
HD 214810 A
Mass	1.26^[6] `M`_☉
Surface gravity (log g)	4.19^[3] cgs
Temperature	6,151^[3] K
Metallicity [Fe/H]	−0.22^[3] dex
Age	3.7^[7] Gyr
HD 214810 B
Mass	0.87^[6] `M`_☉
Other designations
BD-04° 5728, HD 214810, HIP 111965, HR 8629, SAO 146239.
Database references
SIMBAD	data