HD 134064

HD 134064
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes
Right ascension 15h 07m 20.36877s[1]
Declination +18° 26′ 30.5679″[1]
Apparent magnitude (V) 6.03[2]
Characteristics
Spectral type A3Vnn[2]
U−B color index +0.06[3]
B−V color index +0.06[3]
Astrometry
Radial velocity (Rv)-7.0[4] km/s
Proper motion (μ) RA: +42.62[1] mas/yr
Dec.: -50.14[1] mas/yr
Parallax (π)13.85 ± 0.40[1] mas
Distance235 ± 7 ly
(72 ± 2 pc)
Details
HD 134064 A
Mass2.09[5] M☉
Luminosity16[6] L☉
Temperature8539[6] K
Rotational velocity (v sin i)191[7] km/s
Age180[5] Myr
HD 134064 B
Mass0.73[5] M☉
Orbit[8]
Period (P)2920 d yr
Eccentricity (e)0.45
Other designations
BD+19° 2924, HD 134064, HIP 74000, HR 5633, SAO 101379.
Database references
SIMBADdata

HD 134064 is a binary star system in the northern constellation of Boötes. The pair are separated by a distance of around 8,000 AU.[5]

References

  1. 1 2 3 4 5 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752Freely accessible, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
  2. 1 2 Paunzen, E.; et al. (July 2001), "A spectroscopic survey for λ Bootis stars. II. The observational data", Astronomy and Astrophysics, 373: 625−632, Bibcode:2001A&A...373..625P, doi:10.1051/0004-6361:20010630.
  3. 1 2 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.
  4. ↑ Kharchenko, N. V.; et al. (2007). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ˜55000 stars and mean radial velocities of 516 Galactic open clusters and associations". Astronomische Nachrichten. 328 (9): 889. arXiv:0705.0878Freely accessible. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776.
  5. 1 2 3 4 De Rosa, R. J.; et al. (January 2014), "The VAST Survey - III. The multiplicity of A-type stars within 75 pc", Monthly Notices of the Royal Astronomical Society, 437 (2): 1216−1240, arXiv:1311.7141Freely accessible, Bibcode:2014MNRAS.437.1216D, doi:10.1093/mnras/stt1932.
  6. 1 2 McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037Freely accessible, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x.
  7. ↑ 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/0610785Freely accessible, Bibcode:2007A&A...463..671R, doi:10.1051/0004-6361:20065224.
  8. ↑ Abt, Helmut A. (August 2005), "Observed Orbital Eccentricities", The Astrophysical Journal, 629 (1): 507–511, Bibcode:2005ApJ...629..507A, doi:10.1086/431207.
This article is issued from Wikipedia - version of the 4/20/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.