HD 88218

HD 88218
Observation data; Epoch J2000 Equinox J2000
Constellation	Antlia
Right ascension	10h 09m 31.76814s
Declination	−35° 51′ 24.3767″
Apparent magnitude (V)	6.16
Characteristics
Spectral type	G0V
U−B color index	+0.15
B−V color index	+0.60
Astrometry
Radial velocity (Rv)	36.5±0.3 km/s
Proper motion (μ)	RA: −442.97±0.33 mas/yr ; Dec.: +16.04±0.37 mas/yr
Parallax (π)	31.61 ± 0.39 mas
Distance	103 ± 1 ly ; (31.6 ± 0.4 pc)
Absolute magnitude (MV)	3.71
Details
HD 88218 A
Mass	1.29 M☉
Surface gravity (log g)	4.13 cgs
Temperature	5,944 K
Metallicity [Fe/H]	0.08 dex
Age	8.3 Gyr
HD 88218 B
Mass	0.69 M☉
Other designations
	CD-35° 6194, HD 88218, HIP 49769, HR 3992, SAO 201109.
Database references
SIMBAD	data
Database references
SIMBAD	data

HD 88218 is a binary star in the southern constellation of Antlia. With an apparent magnitude of 6.16,^[2] the system is faintly visible to the naked eye from dark skies. The pair orbit each other with a period of about 86 years.^[5]

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^ ^a ^b ^c ^d Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode:1986EgUBV........0M
^ ^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 ^c Nordström, B.; et al. (May 2004), "The Geneva-Copenhagen survey of the Solar neighbourhood: Ages, metallicities, and kinematic properties of 14,000 F and G dwarfs", Astronomy and Astrophysics, 418: 989–1019, arXiv:astro-ph/0405198, Bibcode:2004A&A...418..989N, doi:10.1051/0004-6361:20035959, S2CID 11027621
^ ^a ^b ^c 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

External links[]

Image HD 88218

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[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

[MERMILLIOD-2] Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode:1986EgUBV........0M

[apj132_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.

[Nordstrom2004-4] Nordström, B.; et al. (May 2004), "The Geneva-Copenhagen survey of the Solar neighbourhood: Ages, metallicities, and kinematic properties of 14,000 F and G dwarfs", Astronomy and Astrophysics, 418: 989–1019, arXiv:astro-ph/0405198, Bibcode:2004A&A...418..989N, doi:10.1051/0004-6361:20035959, S2CID 11027621

[aj147_4_87-5] 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

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Observation data Epoch J2000 Equinox J2000
Constellation	Antlia
Right ascension	10^h 09^m 31.76814^s^[1]
Declination	−35° 51′ 24.3767″^[1]
Apparent magnitude (V)	6.16^[2]
Characteristics
Spectral type	G0V^[3]
U−B color index	+0.15^[2]
B−V color index	+0.60^[2]
Astrometry

Radial velocity (R_v)	36.5±0.3^[4] km/s
Proper motion (μ)	RA: −442.97±0.33^[1] mas/yr Dec.: +16.04±0.37^[1] mas/yr
Parallax (π)	31.61 ± 0.39^[1] mas
Distance	103 ± 1 ly (31.6 ± 0.4 pc)
Absolute magnitude (M_V)	3.71^[4]

Details
HD 88218 A
Mass	1.29^[5] `M`_☉
Surface gravity (log g)	4.13^[3] cgs
Temperature	5,944^[3] K
Metallicity [Fe/H]	0.08^[3] dex
Age	8.3^[4] Gyr
HD 88218 B
Mass	0.69^[5] `M`_☉
Other designations
CD-35° 6194, HD 88218, HIP 49769, HR 3992, SAO 201109.
Database references
SIMBAD	data
Database references
SIMBAD	data