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 mas[1] |
| 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 | |
| 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
- ^ a b c d e 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.
- ^ 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.
- ^ 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.
- ^ 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. arXiv:0705.0878. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776.
{{cite journal}}: CS1 maint: postscript (link) - ^ "Sixth Catalog of Orbits of Visual Binary Stars". United States Naval Observatory. Retrieved 21 May 2017.
- ^ 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, arXiv:1311.7141, Bibcode:2014MNRAS.437.1216D, doi:10.1093/mnras/stt1932.
{{citation}}: CS1 maint: unflagged free DOI (link) - ^ 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, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x.
- ^ 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.
External links
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