HD 164712

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HD 164712
Observation data
Epoch J2000      Equinox J2000
Constellation Apus
Right ascension 18h 11m 15.80196s[1]
Declination −75° 53′ 29.44″[1]
Apparent magnitude (V) 5.86[2]
Characteristics
Spectral type K2III[3]
U−B color index +1.40[2]
B−V color index +1.27[2]
Astrometry
Radial velocity (Rv)+14.8[4] km/s
Proper motion (μ) RA: +16.77±0.27[1] mas/yr
Dec.: −294.99±0.25[1] mas/yr
Parallax (π)13.28 ± 0.32[1] mas
Distance246 ± 6 ly
(75 ± 2 pc)
Other designations
CD−75° 1016, HD 164712, HIP 89115, HR 6731, SAO 257569.
Database references
SIMBADdata

HD 164712 is a giant star in the southern constellation of Apus. It shows indications of an infrared excess, suggesting there may be a dusty disk in orbit around the star.[5]

References[]

  1. ^ a b c d e 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, S2CID 18759600
  2. ^ a b c Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode:1986EgUBV........0M
  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. ^ Evans, D. S. (June 20–24, 1966), "The Revision of the General Catalogue of Radial Velocities", in Batten, Alan Henry; Heard, John Frederick (eds.), Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, University of Toronto: International Astronomical Union, Bibcode:1967IAUS...30...57E
  5. ^ Plets, H.; et al. (July 1997), "Giants with infrared excess.", Astronomy and Astrophysics, 323: 513–523, Bibcode:1997A&A...323..513P

External links[]


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