HD 222399

HD 222399
Observation data; Epoch J2000 Equinox J2000
Constellation	Andromeda
Right ascension	23h 40m 02.8166s
Declination	+37° 39′ 09.5064″
Apparent magnitude (V)	6.57
Characteristics
Spectral type	F2IV
U−B color index	+0.10
B−V color index	+0.35
Astrometry
Radial velocity (Rv)	−21.0±0.6 km/s
Proper motion (μ)	RA: −8.490±0.042 mas/yr ; Dec.: −81.051±0.037 mas/yr
Parallax (π)	10.7133 ± 0.0351 mas
Distance	304.4 ± 1.0 ly ; (93.3 ± 0.3 pc)
Details
Mass	1.77 M☉
Surface gravity (log g)	3.78 cgs
Metallicity [Fe/H]	−0.04 dex
Rotational velocity (v sin i)	55 km/s
Age	1.4 Gyr
Other designations
	BD+36° 5098, HD 222399, HIP 116781, HR 8973, SAO 73422.
Database references
SIMBAD	data
Database references
SIMBAD	data

HD 222399 is a double star in the northern constellation of Andromeda. The magnitude 6.57^[2] primary is an F-type subgiant star with a stellar classification of F2IV.^[3] It has a magnitude 10.57 companion at an angular separation of 14.7″ along a position angle of 162° (as of 2002).^[7]

References

^ ^a ^b ^c ^d ^e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
^ ^a ^b ^c ^d Danziger, I. J.; Dickens, R. J. (July 1967), "Spectrophotometry of New Short-Period Variable Stars", Astrophysical Journal, 149: 55, Bibcode:1967ApJ...149...55D, doi:10.1086/149231
^ ^a ^b Cowley, Anne; Fraquelli, Dorothy (February 1974), "MK Spectral Types for Some Bright F Stars", Publications of the Astronomical Society of the Pacific, 86 (509): 70, Bibcode:1974PASP...86...70C, doi:10.1086/129562.
^ 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.
^ ^a ^b ^c ^d Casagrande, L.; et al. (2011). "New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey". Astronomy & Astrophysics. 530 (A138): 21. arXiv:1103.4651. Bibcode:2011A&A...530A.138C. doi:10.1051/0004-6361/201016276. S2CID 56118016.
^ Royer, F.; Zorec, J.; Gómez, A. E. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv:astro-ph/0610785, Bibcode:2007A&A...463..671R, doi:10.1051/0004-6361:20065224, S2CID 18475298
^ Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode:2001AJ....122.3466M, doi:10.1086/323920, retrieved 2015-07-22

External links

Image HD 222399

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[Gaia-1] Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.

[apj149_55-2] Danziger, I. J.; Dickens, R. J. (July 1967), "Spectrophotometry of New Short-Period Variable Stars", Astrophysical Journal, 149: 55, Bibcode:1967ApJ...149...55D, doi:10.1086/149231

[pasp86_509_70-3] Cowley, Anne; Fraquelli, Dorothy (February 1974), "MK Spectral Types for Some Bright F Stars", Publications of the Astronomical Society of the Pacific, 86 (509): 70, Bibcode:1974PASP...86...70C, doi:10.1086/129562.

[Gontcharov-4] 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.

[aa530_A138-5] Casagrande, L.; et al. (2011). "New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey". Astronomy & Astrophysics. 530 (A138): 21. arXiv:1103.4651. Bibcode:2011A&A...530A.138C. doi:10.1051/0004-6361/201016276. S2CID 56118016.

[aaa463_2_671-6] Royer, F.; Zorec, J.; Gómez, A. E. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv:astro-ph/0610785, Bibcode:2007A&A...463..671R, doi:10.1051/0004-6361:20065224, S2CID 18475298

[WDSC2014-7] Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode:2001AJ....122.3466M, doi:10.1086/323920, retrieved 2015-07-22

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Observation data Epoch J2000 Equinox J2000
Constellation	Andromeda
Right ascension	23^h 40^m 02.8166^s^[1]
Declination	+37° 39′ 09.5064″^[1]
Apparent magnitude (V)	6.57^[2]
Characteristics
Spectral type	F2IV^[3]
U−B color index	+0.10^[2]
B−V color index	+0.35^[2]
Astrometry

Radial velocity (R_v)	−21.0±0.6^[4] km/s
Proper motion (μ)	RA: −8.490±0.042^[1] mas/yr Dec.: −81.051±0.037^[1] mas/yr
Parallax (π)	10.7133 ± 0.0351 mas^[1]
Distance	304.4 ± 1.0 ly (93.3 ± 0.3 pc)

Details

Mass	1.77^[5] `M`_☉
Surface gravity (log g)	3.78^[5] cgs
Metallicity [Fe/H]	−0.04^[5] dex
Rotational velocity (v sin i)	55^[6] km/s
Age	1.4^[5] Gyr

Other designations
BD+36° 5098, HD 222399, HIP 116781, HR 8973, SAO 73422.
Database references
SIMBAD	data
Database references
SIMBAD	data