HD 222399

HD 222399
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda[1]
A
Right ascension 23h 40m 02.8168s[2]
Declination +37° 39′ 09.508″[2]
Apparent magnitude (V) 6.51[3]
A
Right ascension 23h 40m 03.1960s[4]
Declination +37° 38′ 55.218″[4]
Apparent magnitude (V) 10.57[3]
Characteristics
Evolutionary stage main sequence[2][5]
Spectral type F2IV[6]
U−B color index +0.10[7]
B−V color index +0.35[7]
Astrometry
A
Radial velocity (Rv)−19.73±0.17[2] km/s
Proper motion (μ) RA: −8.669[2] mas/yr
Dec.: −81.166[2] mas/yr
Parallax (π)10.8719±0.0178 mas[2]
Distance300.0 ± 0.5 ly
(92.0 ± 0.2 pc)
Absolute magnitude (MV)+1.70[8]
B
Radial velocity (Rv)−19.59±0.19[4] km/s
Proper motion (μ) RA: −6.695[4] mas/yr
Dec.: −83.249[4] mas/yr
Parallax (π)10.9323±0.0127 mas[4]
Distance298.3 ± 0.3 ly
(91.5 ± 0.1 pc)
Details
A
Mass1.77[9] M☉
Radius1.52[10] R☉
Luminosity17[10] L☉
Surface gravity (log g)3.78[9] cgs
Temperature6,939[10] K
Metallicity [Fe/H]−0.04[9] dex
Rotational velocity (v sin i)55[11] km/s
Age1.4[9] Gyr
B
Mass0.80[10] M☉
Radius0.82[10] R☉
Luminosity0.35[10] L☉
Surface gravity (log g)4.51[9] cgs
Temperature4,888[10] K
Metallicity [Fe/H]0.10[12] dex
Age1.2[4] Gyr
Other designations
BD+36°5098, HD 222399, HIP 116781, HR 8973, SAO 73422
Database references
SIMBADA
B

HD 222399 is a double star in the northern constellation of Andromeda. The magnitude 6.5 primary is an F-type subgiant star with a stellar classification of F2IV. It has a magnitude 10.57 companion at an angular separation of 14.7″ along a position angle of 162° (as of 2002).[13]

References

  1. ^ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
  2. ^ a b c d e f g 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.
  3. ^ a b Nascimbeni, V.; Piotto, G.; Ortolani, S.; Giuffrida, G.; Marrese, P. M.; Magrin, D.; Ragazzoni, R.; Pagano, I.; Rauer, H.; Cabrera, J.; Pollacco, D.; Heras, A. M.; Deleuil, M.; Gizon, L.; Granata, V. (2016). "An all-sky catalogue of solar-type dwarfs for exoplanetary transit surveys". Monthly Notices of the Royal Astronomical Society. 463 (4): 4210. arXiv:1609.03037. Bibcode:2016MNRAS.463.4210N. doi:10.1093/mnras/stw2313.
  4. ^ a b c d e f g 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.
  5. ^ Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691.
  6. ^ 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.
  7. ^ a b 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
  8. ^ 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. XHIP record for this object at VizieR.
  9. ^ a b c d e 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.
  10. ^ a b c d e f g Stassun, Keivan G.; et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467.
  11. ^ 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
  12. ^ Matsuno, Tadafumi; Starkenburg, Else; Balbinot, Eduardo; Helmi, Amina (2024). "Improving metallicity estimates for very metal-poor stars in the Gaia DR3 GSP-Spec catalog". Astronomy and Astrophysics. 685: A59. arXiv:2212.11639. Bibcode:2024A&A...685A..59M. doi:10.1051/0004-6361/202245762.
  13. ^ 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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