HD 125351
Spectroscopic star system in the constellation Boötes
title: "HD 125351" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["bayer-objects", "henry-draper-catalogue-objects", "hipparcos-objects", "bright-star-catalogue-objects", "durchmusterung-objects", "k-type-giants", "boötes", "spectroscopic-binaries"] description: "Spectroscopic star system in the constellation Boötes" topic_path: "general/bayer-objects" source: "https://en.wikipedia.org/wiki/HD_125351" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Spectroscopic star system in the constellation Boötes ::
| epoch = J2000 | constell = Boötes | ra = | dec = | appmag_v = | type = red giant branch | class = K1III | r-i = | v-r = | b-v = | u-b = | variable = | radial_v = | prop_mo_ra = 4.87 | prop_mo_dec = 14.40 | parallax = 13.97 | p_error = 0.39 | parallax_footnote = | absmag_v = +0.53 |reference= |primary=A Boötis Aa1 |name=A Boötis Aa2 |period_unitless=212.085 days |axis_unitless=2.3 mas |inclination=83.5 |node=195.2 |periastron=2,440,286.002 |eccentricity=0.570 |periarg=224.9 | component1 = Aa1 | mass = 3.0 | radius = 13 | luminosity = 75 | temperature = 4,650 | metal_fe = −0.03 | gravity = 2.25 | rotation = | age = | component2 = Aa2 | mass2 = 1.2 | component1 = Ab | mass = 1.85 | names = A Boötis, BD+36°2468, HD 125351, HIP 69879, HR 5361, SAO 64053 |Simbad=HD+125351
HD 125351 or A Boötis (A Boo) is multiple star system 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.
HD 125351 is an astrometric and single-lined spectroscopic binary with a known 212-day orbit. Speckle interferometry has detected a companion at a separation of , which is likely to be a different star from the unseen spectroscopic companion. It is 1.45 magnitudes fainter than the visible primary in the near infrared. An orbital period of seven years is suggested. This would make HD 125351 a triple system. Further faint stars at separations of and share a common proper motion although any orbits would take many thousands of years.
References
| last1=van Leeuwen | first1=F. | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | year=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | s2cid=18759600 | postscript=.
| last1=Pourbaix | first1=D. | last2=Boffin | first2=H. M. J. | title=Reprocessing the Hipparcos Intermediate Astrometric Data of spectroscopic binaries. II. Systems with a giant component | journal=Astronomy and Astrophysics | volume=398 | pages=1163–1177 | date=February 2003 | issue=3 | doi=10.1051/0004-6361:20021736 | bibcode=2003A&A...398.1163P | arxiv = astro-ph/0211483 | s2cid=12361870 | postscript=.
| display-authors=1 | last1=Famaey | first1=B. | last2=Jorissen | first2=A. | last3=Luri | first3=X. | last4=Mayor | first4=M. | last5=Udry | first5=S. | last6=Dejonghe | first6=H. | last7=Turon | first7=C. | title=Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters | journal=Astronomy and Astrophysics | volume=430 | pages=165–186 | date=2005 | doi=10.1051/0004-6361:20041272 | bibcode=2005A&A...430..165F | postscript=. |arxiv = astro-ph/0409579 | s2cid=17804304 }}
| last1=Luck | first1=R. Earle | last2=Challener | first2=Sharon L. | title=Chemical Abundances for Very Strong-Lined Giants | journal=Astronomical Journal | volume=110 | page=2968 | date=December 1995 | doi=10.1086/117741 | bibcode=1995AJ....110.2968L | postscript=.
| last1=Griffin | first1=R. F. | title=Photoelectric measurements of the lambda5250A Fe I triplet and the D lines in G and K stars | journal=Monthly Notices of the Royal Astronomical Society | volume=122 | page=181 | date=1961 | bibcode=1961MNRAS.122..181G | postscript=. | doi=10.1093/mnras/122.3.181 | doi-access=free}}
References
- (2013). "Hipparcos Photocentric Orbits of 72 Single-lined Spectroscopic Binaries". The Astronomical Journal.
- {{cite Gaia DR3. 1480869955902288512
- (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters.
- (2018). "The Updated Multiple Star Catalog". The Astrophysical Journal Supplement Series.
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