| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| AC | |
| Right ascension | 14h58m 21.519s[1] |
| Declination | +44° 02′ 35.33″[1] |
| Apparent magnitude (V) | 8.966[2] |
| B | |
| Right ascension | 14h58m 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) | 9.4809 ± 0.0253 mas[5] |
| Distance | 344.0 ± 0.9 ly (105.5 ± 0.3 pc) |
| Absolute magnitude (MV) | 4.05/4.56[1] |
| Orbit[1] | |
| Primary | HD 132563 A |
| Companion | HD 132563 C |
| Period (P) | 47yr |
| 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[6] | |
| Primary | HD 132563 AC |
| Companion | HD 132563 B |
| Semi-major axis (a) | 365 AU |
| Details | |
| HD 132563 AC | |
| 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 | |
| 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.[1]
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.[1]
| 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 | — | — |
