HD 221246

HD 221246
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 23h 30m 07.4133s[1]
Declination +49° 07′ 59.3232″[1]
Apparent magnitude (V) 6.17[2]
Characteristics
Spectral type K3III[3]
U−B color index 1.71[2]
B−V color index 1.46[2]
Astrometry
Radial velocity (Rv)−8.41±0.15[4] km/s
Proper motion (μ) RA: 28.741±0.100[1] mas/yr
Dec.: 3.180±0.087[1] mas/yr
Parallax (π)3.2290 ± 0.0642 mas[1]
Distance1,010 ± 20 ly
(310 ± 6 pc)
Details
Radius48[5] R☉
Surface gravity (log g)2.32[6] cgs
Temperature4228±125[6] K
Metallicity [Fe/H]−0.24±0.10[6] dex
Other designations
BD+48° 4070, FK5 3882, HD 221246, HIP 115996, HR 8925, NGC 7686 1, SAO 53088.
Database references
SIMBADdata

HD 221246 or NGC 7686 1 is a star in open cluster NGC 7686, and it belongs to the northern constellation of Andromeda. With an apparent visual magnitude of 6.17,[2] it can be viewed by the naked eye only under very favourable conditions. It has a spectral classification of K3III, meaning it is an evolved orange giant star.[3] Parallax measurements place this star about 1,000 light years away from the solar system.[1]

  1. ^ a b c d e f 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 clpl4_99 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Shenavrin 2011 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference rv was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference cadars was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Rock2015 was invoked but never defined (see the help page).