HD 221246

HD 221246 or NGC 7686 1
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 23h 30m 07.41387s[1]
Declination +49° 07 59.3190[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)+6.0[4] km/s
Proper motion (μ) RA: 28.94±0.32[1] mas/yr
Dec.: 2.80±0.41[1] mas/yr
Parallax (π)3.61 ± 0.50[1] mas
Distanceapprox. 900 ly
(approx. 280 pc)
Details
Radius48[5] R
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 giant star in open cluster NGC 7686, and it belongs to the northern constellation of Andromeda.

References

  1. 1 2 3 4 5 van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357
  2. 1 2 3 Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory 4 (99), Bibcode:1966CoLPL...4...99J
  3. Shenavrin, V. I.; et al. (2011). "Search for and study of hot circumstellar dust envelopes". Astronomy Reports 55 (1): 31–81. Bibcode:2011ARep...55...31S. doi:10.1134/S1063772911010070.
  4. Wilson, R. E. (1953), General Catalogue of Stellar Radial Velocities, Carnegie Institute of Washington, D.C., Bibcode:1953GCRV..C......0W.
  5. Pasinetti Fracassini, L. E.; et al. (2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics", Astronomy & Astrophysics 367: 521–24, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451

External links

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