HD 132563

HD 132563

Observation data Epoch J2000      Equinox J2000
Constellation	Boötes
AC
Right ascension	14^h 58^m 21.519^s[1]
Declination	+44° 02′ 35.33″[1]
Apparent magnitude (V)	8.966[2]
B
Right ascension	14^h 58^m 21.180^s[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)	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[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
BD+44 2408, HIP 73261, SAO 45312[7]
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]

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.^[1]

The HD 132563 planetary system^[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	—	—

References

1. 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
2. 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.
3. A Modern Mean Stellar Color and Effective Temperatures (Teff) # Sequence for O9V-Y0V Dwarf Stars, E. Mamajek, 2011, website
4. 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.
5. "HD 132563A". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-10-19.
6. High-contrast imaging search for stellar and substellar companions of exoplanet host stars
7. "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.