HD 125351

HD 125351 or A Boötis (A Boo) is spectroscopic binary[6] in the constellation Boötes. The system has an apparent magnitude of +4.97, with a spectrum matching a K-type giant star. It is approximately 233 light-years from Earth.

"A Boötis" redirects here. Not to be confused with α Boötis.
HD 125351
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes
Right ascension 14h 17m 59.81955s[1]
Declination +35° 30′ 34.2208″[1]
Apparent magnitude (V) 4.9660±0.0007[2]
Characteristics
Spectral type K1III[3]
Astrometry
Radial velocity (Rv)−21.6±0.3[2] km/s
Proper motion (μ) RA: 4.87[1] mas/yr
Dec.: 14.40[1] mas/yr
Parallax (π)13.97 ± 0.39 mas[1]
Distance233 ± 7 ly
(72 ± 2 pc)
Orbit[4]
PrimaryA Boötis B
CompanionA Boötis B
Period (P)212.085 days
Semi-major axis (a)2.3 mas
Eccentricity (e)0.570
Inclination (i)83.5°
Longitude of the node (Ω)195.2°
Periastron epoch (T)2,440,286.002
Argument of periastron (ω)
(secondary)		224.9°
Details
Surface gravity (log g)2.25[5] cgs
Temperature4,650[5] K
Metallicity [Fe/H]−0.03[5] dex
Other designations
A Boötis, BD+36° 2468, HD 125351, HIP 69879, HR 5361, SAO 64053
Database references
SIMBADdata

References
  1. 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, S2CID 18759600.
  2. Famaey, B.; et al. (2005), "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters", Astronomy and Astrophysics, 430: 165–186, arXiv:astro-ph/0409579, Bibcode:2005A&A...430..165F, doi:10.1051/0004-6361:20041272, S2CID 17804304.
  3. Griffin, R. F. (1961), "Photoelectric measurements of the lambda5250A Fe I triplet and the D lines in G and K stars", Monthly Notices of the Royal Astronomical Society, 122: 181, Bibcode:1961MNRAS.122..181G, doi:10.1093/mnras/122.3.181.
  4. Ren, Shulin (2013). "Hipparcos Photocentric Orbits of 72 Single-lined Spectroscopic Binaries". The Astronomical Journal. 145 (3): 81. Bibcode:2013AJ....145...81R. doi:10.1088/0004-6256/145/3/81. S2CID 120199240.
  5. Luck, R. Earle; Challener, Sharon L. (December 1995), "Chemical Abundances for Very Strong-Lined Giants", Astronomical Journal, 110: 2968, Bibcode:1995AJ....110.2968L, doi:10.1086/117741.
  6. Pourbaix, D.; Boffin, H. M. J. (February 2003), "Reprocessing the Hipparcos Intermediate Astrometric Data of spectroscopic binaries. II. Systems with a giant component", Astronomy and Astrophysics, 398 (3): 1163–1177, arXiv:astro-ph/0211483, Bibcode:2003A&A...398.1163P, doi:10.1051/0004-6361:20021736, S2CID 12361870.


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