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]
| 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 mas[1] |
| Distance | approx. 500 ly (approx. 160 pc) |
| Details | |
| Luminosity | 51.5[6] L☉ |
| Temperature | 7,000[6] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
References
edit- ^ 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.
- ^ 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.
- ^ a b Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode:2001AJ....122.3466M, doi:10.1086/323920, retrieved 2015-07-22.
- ^ Hoffleit, D.; Warren Jr, W. H. (1991), Bright Star Catalogue (5th Revised (Preliminary Version) ed.), Astronomical Data Center, NSSDC/ADC, 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, arXiv:1606.08053, Bibcode:2006AstL...32..759G, doi:10.1134/S1063773706110065, S2CID 119231169.
- ^ 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, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x, S2CID 118665352.
External links
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