HD 134064

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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
Distance 235 ± 7 ly
(72 ± 2 pc)
Orbit[5]
Period (P) 8.0 yr
Semi-major axis (a) 0.10″
Eccentricity (e) 0.45
Inclination (i) 122.6°
Longitude of the node (Ω) 41.3°
Periastron epoch (T) B 1939.97
Argument of periastron (ω)
(secondary)
71.4°
Details
HD 134064 A
Mass 2.09[6] M
Luminosity 16[7] L
Temperature 8539[7] K
Rotational velocity (v sin i) 191[8] km/s
Age 180[6] Myr
HD 134064 B
Mass 0.73[6] M
Other designations
BD+19° 2924, HD 134064, HIP 74000, HR 5633, SAO 101379.
Database references
SIMBAD data

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.[6]

References[edit]

  1. ^ a b c d e van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752Freely accessible, doi:10.1051/0004-6361:20078357. 
  2. ^ a b 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. ^ a b 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): 889–896. Bibcode:2007AN....328..889K. arXiv:0705.0878Freely accessible. doi:10.1002/asna.200710776. 
  5. ^ "Sixth Catalog of Orbits of Visual Binary Stars". United States Naval Observatory. Retrieved 21 May 2017. 
  6. ^ a b c d 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, Bibcode:2014MNRAS.437.1216D, arXiv:1311.7141Freely accessible, doi:10.1093/mnras/stt1932. 
  7. ^ a b McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, Bibcode:2012MNRAS.427..343M, arXiv:1208.2037Freely accessible, doi:10.1111/j.1365-2966.2012.21873.x. 
  8. ^ 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, Bibcode:2007A&A...463..671R, arXiv:astro-ph/0610785Freely accessible, doi:10.1051/0004-6361:20065224. 

External links[edit]