HD 151566

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HD 151566
Observation data
Epoch J2000      Equinox J2000
Constellation Ara
Right ascension 16h 50m 36.07960s[1]
Declination −50° 02′ 41.8040″[1]
Apparent magnitude (V) 6.45[2] (7.17 + 7.33)[3]
Characteristics
Spectral type A5III + F7III[4]
U−B color index +0.07[2]
B−V color index +0.33[2]
Astrometry
Radial velocity (Rv) 24.6±1.6[5] km/s
Proper motion (μ) RA: -7.97[1] mas/yr
Dec.: -2.84[1] mas/yr
Parallax (π) 6.19 ± 1.22[1] mas
Distance approx. 500 ly
(approx. 160 pc)
Details
Luminosity 51.5[6] L
Temperature 7,000[6] K
Other designations
CD-49° 10998, HD 151566, HIP 82418, HR 6236.
Database references
SIMBAD data

HD 151566 is double star in the southern constellation of Ara. As of 1991, the pair had an angular separation of 3.10 along a position angle of 42°.[3]

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752Freely accessible, doi:10.1051/0004-6361:20078357. 
  2. ^ a b c Hurly, P. R. (1975), "Combined-light UBV Photometry of 103 Bright Southern Visual Doubles", Monthly Notes of the Astronomical Society of Southern Africa, 34: 7, Bibcode:1975MNSSA..34....7H. 
  3. ^ a b Mason, B. D.; et al. (2014), The Washington Visual Double Star Catalog, Bibcode:2001AJ....122.3466M, doi:10.1086/323920, retrieved 2015-07-22. 
  4. ^ Hoffleit, D.; Warren Jr, W. H. (1991), Bright Star Catalogue (5th Revised (Preliminary Version) ed.), Astronomical Data Center, NSSDC/ADC, retrieved 2015-08-17. 
  5. ^ 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, Bibcode:2006AstL...32..759G, doi:10.1134/S1063773706110065. 
  6. ^ a b McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, Bibcode:2012MNRAS.427..343M, arXiv:1208.2037Freely accessible, doi:10.1111/j.1365-2966.2012.21873.x. 

External links[edit]