Astronomy:HD 151566
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Short description: Double Star in the constellation Ara
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Ara[1] |
| Right ascension | 16h 50m 36.07960s[2] |
| Declination | −50° 02′ 41.8040″[2] |
| Apparent magnitude (V) | 6.45[3] (7.17 + 7.33)[4] |
| Characteristics | |
| Spectral type | A5III + F7III[5] |
| U−B color index | +0.07[3] |
| B−V color index | +0.33[3] |
| Astrometry | |
| Radial velocity (Rv) | 24.6±1.6[6] km/s |
| Proper motion (μ) | RA: -7.97[2] mas/yr Dec.: -2.84[2] mas/yr |
| Parallax (π) | 6.19 ± 1.22[2] mas |
| Distance | approx. 500 ly (approx. 160 pc) |
| Absolute magnitude (MV) | +0.51[1] |
| Details | |
| A | |
| Mass | 1.8[7] M☉ |
| Radius | 2.6[7] R☉ |
| Luminosity | 15[7] L☉ |
| Temperature | 7,053[7] K |
| Age | 1.3[7] Gyr |
| B | |
| Mass | 1.6[8] M☉ |
| Radius | 2.7[8] R☉ |
| Luminosity | 18[8] L☉ |
| Surface gravity (log g) | 3.78[8] cgs |
| Temperature | 7,217[8] 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°.[4]
References
- ↑ 1.0 1.1 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A XHIP record for this object at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 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.
- ↑ 3.0 3.1 3.2 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.
- ↑ 4.0 4.1 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.
- ↑ 7.0 7.1 7.2 7.3 7.4 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 8.0 8.1 8.2 8.3 8.4 Stassun, Keivan G. et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal 158 (4): 138. doi:10.3847/1538-3881/ab3467. Bibcode: 2019AJ....158..138S.
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