HD 132563
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| A | |
| Right ascension | 14h 58m 21.519s[1] |
| Declination | +44° 02′ 35.33″[1] |
| Apparent magnitude (V) | 8.966[2] |
| B | |
| Right ascension | 14h 58m 21.180s[1] |
| Declination | +44° 02′ 35.87″[1] |
| Apparent magnitude (V) | 9.472[2] |
| Characteristics | |
| Spectral type | F8 V/G0 V[1][3] |
| B−V color index | 0.560[2] |
| Astrometry | |
| Radial velocity (Rv) | −6.5 ± 1.0[1] km/s |
| Proper motion (μ) | RA: −59.86[4] mas/yr Dec.: −70.12[4] mas/yr |
| Parallax (π) | 10.41 ± 1.45[4] mas |
| Distance | approx. 310 ly (approx. 100 pc) |
| Absolute magnitude (MV) | 4.05/4.56[1] |
| Details | |
| HD 132563 A | |
| Mass | 1.081±0.010[1] M☉ |
| Surface gravity (log g) | 4.15[2] cgs |
| Temperature | 6168±100[2] K |
| Metallicity [Fe/H] | −0.18±0.10[2] dex |
| Rotational velocity (v sin i) | 2.0±0.8[1] km/s |
| Age | ~5[1] Gyr |
| HD 132563 B | |
| Mass | 1.010±0.010[1] M☉ |
| Surface gravity (log g) | 4.27[2] cgs |
| Temperature | 5985±100[2] K |
| Metallicity [Fe/H] | −0.19±0.10[2] dex |
| Rotational velocity (v sin i) | 1.5±0.5[1] km/s |
| Other designations | |
BD+44 2408, HIP 73261.[5] | |
HD 132563 is a triple star system in the constellation Boötes. The two resolvable components of this system are designated HD 132563A and HD 132563B. The primary star, HD 132563A, is actually a spectroscopic binary with a period of more than 15 years and an orbital eccentricity of greater than 0.65. The smaller member of this tightly orbiting pair has about 55% the mass of the Sun.[1]
Based upon radial velocity variations of HD 132563B, the presence of an ordinary giant planet has been inferred by S. Desidera et al (2011). This object is orbiting the star with a period of 1,544 days, at a distance of about 2.6 AU, and with an orbital eccentricity of 0.22.[1]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 1.13 Desidera, S.; et al. (July 5, 2011), A giant planet in the triple system HD132563, arXiv:1107.0918, Bibcode:2011arXiv1107.0918D
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Desidera, S.; et al. (June 2004). "Abundance difference between components of wide binaries". Astronomy and Astrophysics 420: 683–697. arXiv:astro-ph/0403051. Bibcode:2004A&A...420..683D. doi:10.1051/0004-6361:20041242.
- ↑ A Modern Mean Stellar Color and Effective Temperatures (Teff) # Sequence for O9V-Y0V Dwarf Stars, E. Mamajek, 2011, website
- ↑ 4.0 4.1 4.2 van Leeuwen, F. (November 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.
- ↑ "IDS 14548+4427 -- Double or multiple star". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2011-07-14.
External links
- Voisey, Jon (July 14, 2011). "New planet discovered in Trinary star system". PhysOrg. Retrieved 2011-07-14.
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