Astronomy:HD 151566
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Short description: Double Star in the constellation Ara
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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 | |
| 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
- ↑ 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, Bibcode: 2007A&A...474..653V.
- ↑ 2.0 2.1 2.2 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.
- ↑ 3.0 3.1 Mason, B. D. et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal 122 (6): 3466, doi:10.1086/323920, Bibcode: 2001AJ....122.3466M, http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=B/wds, retrieved 2015-07-22.
- ↑ Hoffleit, D.; Warren Jr, W. H. (1991), Bright Star Catalogue (5th Revised (Preliminary Version) ed.), Astronomical Data Center, NSSDC/ADC, http://vizier.u-strasbg.fr/viz-bin/VizieR-3?-source=V/50/, retrieved 2015-08-17.
- ↑ 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, Bibcode: 2006AstL...32..759G.
- ↑ 6.0 6.1 McDonald, I. et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society 427 (1): 343–57, doi:10.1111/j.1365-2966.2012.21873.x, Bibcode: 2012MNRAS.427..343M.
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