HD 132029

HD 132029
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes[1]
A
Right ascension 14h 55m 58.59235s[2]
Declination +32° 18′ 00.2240″[2]
Apparent magnitude (V) 6.12[3]
B
Right ascension 14h 55m 58.94470s[4]
Declination +32° 17′ 58.4915″[4]
Apparent magnitude (V) 10.35[3]
Characteristics
Spectral type A2V[5]
U−B color index +0.07[6]
B−V color index +0.087[5]
Astrometry
Radial velocity (Rv)−12.1[7] km/s
Absolute magnitude (MV)+1.22[1]
A
Proper motion (μ) RA: −54.033[2] mas/yr
Dec.: −3.128[2] mas/yr
Parallax (π)9.4783±0.0524 mas[2]
Distance344 ± 2 ly
(105.5 ± 0.6 pc)
B
Proper motion (μ) RA: −54.327[4] mas/yr
Dec.: −1.841[4] mas/yr
Parallax (π)9.5813 ± 0.0172 mas[4]
Distance340.4 ± 0.6 ly
(104.4 ± 0.2 pc)
Details
A
Mass2.4[2] M☉
Radius2.5[2] R☉
Luminosity44[2] L☉
Surface gravity (log g)4.02[2] cgs
Temperature9.434[2] K
Rotational velocity (v sin i)64[5] km/s
Age440[2] Myr
B
Mass0.81[4] M☉
Radius0.82[4] R☉
Luminosity0.41[4] L☉
Surface gravity (log g)4.46[4] cgs
Temperature5,099[4] K
Age11.9[4] Gyr
Other designations
BD+32°2531, HD 132029, HIP 73068, HR 5569, SAO 64408[8]
Database references
SIMBADdata
B

HD 132029 is a double star in the northern constellation of Boötes. The two stars share a common proper motion and lie about 340 light years away.

The primary star is an A-type main-sequence star with a spectral class of A2V and an apparent magnitude of 6.1, just visible to the naked eye om ideal conditions. The 10th-magnitude companion lies at an angular separation of 4.6″ along a position angle of 110° (as of 2010).[9]

The A-type star is over twice as massive as the Sun and over 40 times as luminous. It has an effective temperature of 9,434 K.[2] The fainter secondary has only 80% of the Sun's mass and 40% of its luminosity and its photosphere is at a temperature of 5,099 K.[4]

References

  1. 1 2 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015.
  2. 1 2 3 4 5 6 7 8 9 10 11 12 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. 1 2 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355. Bibcode:2000A&A...355L..27H.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  5. 1 2 3 Royer, F.; Zorec, J.; Gómez, A. E. (February 2007). "Rotational velocities of A-type stars. III. Velocity distributions". Astronomy and Astrophysics. 463 (2): 671–682. arXiv:astro-ph/0610785. Bibcode:2007A&A...463..671R. doi:10.1051/0004-6361:20065224. S2CID 18475298.
  6. ↑ Osawa, Kiyoteru (July 1959). "Spectral Classification of 533 B8-A2 Stars and the Mean Absolute Magnitude of a0 V Stars". Astrophysical Journal. 130: 159. Bibcode:1959ApJ...130..159O. doi:10.1086/146706.
  7. ↑ Wilson, R. E. (1953). "General Catalogue of Stellar Radial Velocities". Carnegie Institute Washington D.C. Publication. Carnegie Institute of Washington, D.C. Bibcode:1953GCRV..C......0W.
  8. ↑ "HD 132029". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2025-04-18.
  9. ↑ Mason, B. D.; et al. (2014). "The Washington Visual Double Star Catalog". The Astronomical Journal. 122 (6): 3466–3471. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Retrieved 2015-07-22.
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