| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| AC | |
| Right ascension | 14 58 21.519 |
| Declination | +44° 02′ 35.33″ |
| Apparent magnitude (V) | 8.966 |
| B | |
| Right ascension | 14 58 21.180 |
| Declination | +44° 02′ 35.87″ |
| Apparent magnitude (V) | 9.472 |
| Characteristics | |
| Spectral type | F8 V/G0 V |
| B−V color index | 0.560 |
| Astrometry | |
| Radial velocity (Rv) | −6.5 ± 1.0 km/s |
| Proper motion (μ) | RA: −59.86 mas/yr Dec.: −70.12 mas/yr |
| Parallax (π) | 9.4809 ± 0.0253 mas |
| Distance | 344.0 ± 0.9 ly (105.5 ± 0.3 pc) |
| Absolute magnitude (MV) | 4.05/4.56 |
| Orbit | |
| Primary | HD 132563 A |
| Companion | HD 132563 C |
| Period (P) | 47 yr |
| Semi-major axis (a) | 14.8 AU |
| Eccentricity (e) | 0.860 |
| Periastron epoch (T) | B 2012.34 |
| Argument of periastron (ω) (secondary) | 160.2° |
| Orbit | |
| Primary | HD 132563 AC |
| Companion | HD 132563 B |
| Semi-major axis (a) | 365 AU |
| Details | |
| HD 132563 AC | |
| Mass | 1.081±0.010 M☉ |
| Surface gravity (log g) | 4.15 cgs |
| Temperature | 6168±100 K |
| Metallicity | −0.18±0.10 dex |
| Rotational velocity (v sin i) | 2.0±0.8 km/s |
| Age | ~5 Gyr |
| HD 132563 B | |
| Mass | 1.010±0.010 M☉ |
| Surface gravity (log g) | 4.27 cgs |
| Temperature | 5985±100 K |
| Metallicity | −0.19±0.10 dex |
| Rotational velocity (v sin i) | 1.5±0.5 km/s |
| Other designations | |
| BD+44 2408, HIP 73261, SAO 45312 | |
| Database references | |
| SIMBAD | data |
HD 132563 is a triple star system in the constellation Boötes. The two resolvable components of this system are designated HD 132563 AC and HD 132563 B. The primary star, HD 132563 AC, 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.
Planetary system
Based upon radial velocity variations of HD 132563 B, 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.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥1.49 ± 0.09 MJ | 2.62 ± 0.04 | 1544 ± 34 | 0.22 ± 0.09 | — | — |
References
- ^ Desidera, S.; et al. (July 5, 2011), "A giant planet in the triple system HD132563", Astronomy & Astrophysics, 533: A90, arXiv:1107.0918, Bibcode:2011A&A...533A..90D, doi:10.1051/0004-6361/201117191, S2CID 54938087
- ^ Desidera, S.; et al. (June 2004). "Abundance difference between components of wide binaries". Astronomy and Astrophysics. 420 (2): 683–697. arXiv:astro-ph/0403051. Bibcode:2004A&A...420..683D. doi:10.1051/0004-6361:20041242. S2CID 56391176.
- A Modern Mean Stellar Color and Effective Temperatures (Teff) # Sequence for O9V-Y0V Dwarf Stars, E. Mamajek, 2011, website
- ^ 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. S2CID 18759600.
- "HD 132563A". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-10-19.
- High-contrast imaging search for stellar and substellar companions of exoplanet host stars
- "IDS 14548+4427". 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.
