HD 165259

HD 165259 is visual binary star[3] system in the southern constellation of Apus.

HD 165259
Observation data
Epoch J2000      Equinox J2000
Constellation Apus
Right ascension 18h 12m 34.051s[1]
Declination −73° 40 20.70[1]
Apparent magnitude (V) 5.85[2]
Characteristics
Spectral type F5V[3]
U−B color index +0.05[2]
B−V color index +0.46[2]
Astrometry
Radial velocity (Rv)+13.1[4] km/s
Proper motion (μ) RA: −55.44±0.32[1] mas/yr
Dec.: −262.62±0.39[1] mas/yr
Parallax (π)23.73 ± 0.46[1] mas
Distance137 ± 3 ly
(42.1 ± 0.8 pc)
Other designations
CD-73° 1348, HD 165259, HIP 89234, HR 6751, SAO 257571.
Database references
SIMBADdata

References

  1. 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. Nicolet, B. (1978), "Photoelectric photometric Catalogue of homogeneous measurements in the UBV System", Astronomy and Astrophysics Supplement Series, 34: 1–49, Bibcode:1978A&AS...34....1N
  3. Houk, Nancy (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, 1, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.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. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
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