Astronomy:HD 132029

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Short description: Star in the constellation Boötes
HD 132029
Observation data
{{#ifeq:J2000|J2000.0 (ICRS)|Epoch J2000.0      Equinox J2000.0 (ICRS)| Epoch J2000      [[Astronomy:Equinox (celestial coordinates)|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[2] mas
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[4] mas
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. ↑ 1.0 1.1 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A. 
  2. ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  3. ↑ 3.0 3.1 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P. et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics 355. Bibcode: 2000A&A...355L..27H. 
  4. ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  5. ↑ 5.0 5.1 5.2 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. doi:10.1051/0004-6361:20065224. Bibcode: 2007A&A...463..671R. 
  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. doi:10.1086/146706. Bibcode: 1959ApJ...130..159O. 
  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. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+132029. 
  9. ↑ Mason, B. D. et al. (2014). "The Washington Visual Double Star Catalog". The Astronomical Journal 122 (6): 3466–3471. doi:10.1086/323920. Bibcode: 2001AJ....122.3466M. http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=B/wds. Retrieved 2015-07-22. 



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