HD 222399

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]
Distance304.4 ± 1.0 ly
(93.3 ± 0.3 pc)
Details
Mass1.77[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
Age1.4[5] Gyr
Other designations
BD+36° 5098, HD 222399, HIP 116781, HR 8973, SAO 73422.
Database references
SIMBADdata
Database references
SIMBADdata

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]

  1. ^ 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.
  2. ^ a b c d Cite error: The named reference apj149_55 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference pasp86_509_70 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Gontcharov was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference aa530_A138 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference aaa463_2_671 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference WDSC2014 was invoked but never defined (see the help page).