HD 161988

HD 161988
Observation data
Epoch J2000      Equinox J2000
Constellation Apus
Right ascension 17h 57m 41.687s[1]
Declination −76° 10′ 40.62″[1]
Apparent magnitude (V) 6.07[2]
Characteristics
Spectral type K2III[3]
U−B color index +1.28[2]
B−V color index +1.20[2]
Astrometry
Radial velocity (Rv)+36.8[4] km/s
Proper motion (μ) RA: 1.97±0.28[1] mas/yr
Dec.: −1.73±0.27[1] mas/yr
Parallax (π)5.38 ± 0.31[1] mas
Distance610 ± 30 ly
(190 ± 10 pc)
Absolute magnitude (MV)7.296
Details
Luminosity185[5] L☉
Temperature4,498[5] K
Other designations
CD-76° 919, HD 161988, HIP 87926, HR 6635, SAO 257542.
Database references
SIMBADdata

HD 161988 is star in the southern constellation of Apus.

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. Vizier catalog entry
  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. ↑ Houk, Nancy; Cowley, A. P. (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.
  5. 1 2 McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x
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