HD 222399

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HD 222399
Observation data
Epoch J2000       Equinox J2000
Constellation Andromeda
Right ascension 23h 40m 02.8166s [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 (Rv)−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

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

  1. 1 2 3 4 5 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.
  2. 1 2 3 4 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
  3. 1 2 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 .
  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.
  5. 1 2 3 4 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.
  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
  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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