HD 149989

HD 149989
Observation data
Epoch J2000      Equinox J2000
Constellation Ara
Right ascension 16h 40m 44.40039s[1]
Declination –51° 28′ 41.7351″[1]
Apparent magnitude (V) 6.30[2]
Characteristics
Spectral type A9 V[3]
Variable type γ Dor[2]
Astrometry
Proper motion (μ) RA: 12.56[1] mas/yr
Dec.: 130.30[1] mas/yr
Parallax (π)20.24 ± 0.42[1] mas
Distance161 ± 3 ly
(49 ± 1 pc)
Details
Rotational velocity (v sin i)136[4] km/s
Other designations
CPD–51° 9815, CD–51° 10403, HD 149989, HIP 81650, NSV 20726, SAO 244058, V872 Arae.[5]
Database references
SIMBADdata

HD 149989 is the Henry Draper Catalogue designation for a star in the southern constellation of Ara. This is a variable star of the Gamma Doradus type with a period of 0.42658 days.[2]

References

  1. 1 2 3 4 5 van Leeuwen, F. (November 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 De Cat, P.; et al. (April 2006), "A spectroscopic study of southern (candidate) γ Doradus stars. I. Time series analysis", Astronomy and Astrophysics, 449 (1): 281–292, arXiv:astro-ph/0511207, Bibcode:2006A&A...449..281D, doi:10.1051/0004-6361:20053655
  3. ↑ Houk, Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 2, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H.
  4. ↑ 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.
  5. ↑ "V872 Ara -- Variable Star of gamma Dor", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-08-03.


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