Astronomy:HD 219659

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Short description: Suspected variable star in the constellation Aquarius
HD 219659
Observation data
Equinox J2000.0]] (ICRS)
Constellation Aquarius
Right ascension  23h 17m 40.08278s[1]
Declination −11° 42′ 46.5910″[1]
Apparent magnitude (V) 6.33[2]
Characteristics
Spectral type A1/A2IV/V[3]
U−B color index +0.00[2]
B−V color index +0.05[2]
Astrometry
Radial velocity (Rv)2.2[4] km/s
Proper motion (μ) RA: +40.58[1] mas/yr
Dec.: +5.32[1] mas/yr
Parallax (π)8.24 ± 0.53[1] mas
Distance400 ± 30 ly
(121 ± 8 pc)
Details
Radius1.9[5] R
Rotational velocity (v sin i)196[6] km/s
Other designations
BD-12° 6461, HD 219659, HIP 115015, HR 8856, SAO 165609.
Database references
SIMBADdata

HD 219659 is suspected variable star in the equatorial constellation of Aquarius.

References

  1. 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode2007A&A...474..653V. 
  2. 2.0 2.1 2.2 Alexander, J. B.; Carter, B. S. (1971), "Motion of A0 stars perpendicular to the galactic plane. V. (U, B, V) photometry of A stars in the south galactic cap.", Royal Observatory Bulletin, Greenwich-Cape 169 (169): 353–361, Bibcode1971RGOB..169..351A 
  3. Houk, Nancy; Smith-Moore, M. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 4, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode1988mcts.book.....H 
  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. doi:10.1134/S1063773706110065. Bibcode2006AstL...32..759G. 
  5. Pasinetti Fracassini, L. E. et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics", Astronomy and Astrophysics 367 (2): 521–524, doi:10.1051/0004-6361:20000451, Bibcode2001A&A...367..521P 
  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, doi:10.1051/0004-6361:20065224, Bibcode2007A&A...463..671R 

External links