HD 125040
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Boötes |
Right ascension | 14h 16m 32.84326s[1] |
Declination | +20° 07′ 18.6591″[1] |
Apparent magnitude (V) | 6.25[2] |
Characteristics | |
Spectral type | F8V[3] |
B−V color index | +0.488[2] |
Astrometry | |
Radial velocity (Rv) | ±0.55 −7.20[4] km/s |
Proper motion (μ) | RA: ±0.57 −135.85[1] mas/yr Dec.: ±0.46 −93.28[1] mas/yr |
Parallax (π) | 30.65 ± 0.64[1] mas |
Distance | 106 ± 2 ly (32.6 ± 0.7 pc) |
Absolute magnitude (MV) | ±0.05 3.69[5] |
Orbit[6] | |
Period (P) | ±299.4 956.6yr |
Semi-major axis (a) | ±0.75″ 3.75 |
Eccentricity (e) | ±0.08 0.53 |
Inclination (i) | ±6.9 134.3° |
Longitude of the node (Ω) | ±10.4 14.1° |
Periastron epoch (T) | 683.9±14.2 1 |
Argument of periastron (ω) (secondary) | ±18.5 72.2° |
Details | |
Temperature | 6,223[5] K |
Metallicity [Fe/H] | 0.05[5] dex |
Age | +0.6 −0.7 2.5[5] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
HD 125040 is a visual binary star in the northern constellation Boötes. The pair orbit each other with a semi-major axis of 105 astronomical units and a period of roughly 750 years.[8]
References
- 1 2 3 4 5 van Leeuwen, F. (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. Vizier catalog entry
- 1 2 Häggkvist, L.; Oja, T. (1969), "Photoelectric BV photometry of 368 northern stars", Arkiv för Astronomi, 5: 125–135, Bibcode:1969ArA.....5..125H
- ↑ Harlan, E. A.; Taylor, D. C. (March 1970), "MK classification for F- and G-type stars. II", Astronomical Journal, 75 (2): 165–166, Bibcode:1970AJ.....75..165H, doi:10.1086/110956
- ↑ Valenti, Jeff A.; Fischer, Debra A. (July 2005). "Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs". The Astrophysical Journal Supplement Series. 159 (1): 141–166. Bibcode:2005ApJS..159..141V. doi:10.1086/430500.
- 1 2 3 4 Holmberg, J.; et al. (July 2009). "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics". Astronomy and Astrophysics. 501 (3): 941–947. arXiv:0811.3982. Bibcode:2009A&A...501..941H. doi:10.1051/0004-6361/200811191.
- ↑ Hartkopf, W. I.; et al. (June 30, 2006), Sixth Catalog of Orbits of Visual Binary Stars, United States Naval Observatory, retrieved 2017-06-02.
- ↑ "HR 5346 -- Star in double system". SIMBAD Astronomical Database. Centre de données astronomiques de Strasbourg. Retrieved 2014-10-02.
- ↑ Mason, Brian D.; et al. (2013). "Speckle Interferometry at the U.S. Naval Observatory. XIX". The Astronomical Journal. 146 (3). 56. Bibcode:2013AJ....146...56M. doi:10.1088/0004-6256/146/3/56.
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