{{Short description|Star in the constellation Boötes}} {{Starbox begin}} {{Starbox observe | epoch = J2000 | constell = [[Boötes (constellation)|Boötes]] | ra = {{RA|14|41|43.52071}}<ref name=GaiaDR2/> | dec = {{DEC|+11|39|38.3820}}<ref name=GaiaDR2/> | appmag_v = 5.55<ref name=Anderson2012/> }} {{Starbox character | type = [[red clump]]<ref name=Afsar2012/> | class = G8&nbsp;III<ref name=Harlan1970/> | b-v = {{Val|0.941|0.002}}<ref name=Anderson2012/> | u-b = | variable = }} {{Starbox astrometry | radial_v = {{Val|−23.3|0.3}}<ref name=Anderson2012/> | prop_mo_ra = −159.787<ref name=GaiaDR2/> | prop_mo_dec = −112.732<ref name=GaiaDR2/> | parallax = 9.0120 | p_error = 0.2578 | parallax_footnote = <ref name=GaiaDR2/> | absmag_v = 0.09<ref name=Anderson2012/> }} {{Starbox detail | source = | mass = 2.15<ref name=Luck2015/> | radius = {{Val|12.06|0.09|0.24}}<ref name=GaiaDR2/> | luminosity = {{Val|79.14|2.57}}<ref name=GaiaDR2/> | temperature = {{Val|4957.5|50.0|17.5|fmt=commas}}<ref name=GaiaDR2/> | metal_fe = {{Val|−23.3|0.3}}<ref name=Anderson2012/> | gravity = {{Val|2.6|0.3}}<ref name=Afsar2012/> | rotational_velocity = 2.6<ref name=DeMedeiros2000/> | age_gyr = 1.46<ref name=Luck2015/> }} {{Starbox catalog | names={{odlist | F=32 Boo | BD=+12°2729 | FK5=1382 | HD=129336 | HIP=71837 | HR=5481 | SAO=120601 | LTT=14344 }}<ref name=SIMBAD/> }} {{Starbox reference | Simbad=32+Boo }} {{Starbox end}}

'''32 Boötis''' is a single<ref name=Eggleton2008/> [[star]] in the northern [[constellation]] of [[Boötes]],<ref name=SIMBAD/> located 360&nbsp;[[light year]]s away from the Sun.<ref name=GaiaDR2/> It is visible to the naked eye as a faint, yellow-hued star with an [[apparent visual magnitude]] of 5.55.<ref name=Anderson2012/> This object is moving closer to the Earth with a heliocentric [[radial velocity]] of −23&nbsp;km/s.<ref name=Anderson2012/> It has a relatively high [[proper motion]], traversing the [[celestial sphere]] at the rate of 0.195&nbsp;[[arc second]]s per annum.<ref name=Lepine2005/>

This is an aging [[giant star]] with a [[stellar classification]] of G8&nbsp;III.<ref name=Harlan1970/> It is most likely on the [[horizontal branch]] and is a candidate [[red clump]] giant.<ref name=Afsar2012/> The star is an estimated 1.46<ref name=Luck2015/>&nbsp;billion years old with 2.15<ref name=Luck2015/> times the [[mass of the Sun]]. With the hydrogen at its core exhausted, it has expanded to 12<ref name=GaiaDR2/> times the [[Sun's radius]]. 32 Boötis is radiating 79<ref name=GaiaDR2/> times the [[luminosity of the Sun]] from its swollen [[photosphere]] at an [[effective temperature]] of 4958&nbsp;K.<ref name=GaiaDR2/>

==References== <references> <ref name=GaiaDR2>{{cite DR2|1178359260166926848}}</ref>

<ref name=SIMBAD>{{cite simbad | title=32 Boo | access-date=May 10, 2019 }}</ref>

<ref name=Anderson2012>{{citation | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | postscript=. | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | arxiv=1108.4971 | doi=10.1134/S1063773712050015 | s2cid=119257644 }}</ref>

<ref name=Eggleton2008>{{citation | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869–879 | date=September 2008 | doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | postscript=. | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | s2cid=14878976 }}</ref>

<ref name=Luck2015>{{citation | title=Abundances in the Local Region. I. G and K Giants | last1=Luck | first1=R. Earle | journal=Astronomical Journal | volume=150 | issue=3 | at=88 | year=2015 | arxiv=1507.01466 | bibcode=2015AJ....150...88L | doi=10.1088/0004-6256/150/3/88 | s2cid=118505114 | postscript=. }}</ref>

<ref name=Lepine2005>{{citation | last1=Lépine | first1=Sébastien | last2=Shara | first2=Michael M. | title=A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog) | journal=The Astronomical Journal | volume=129 | issue=3 | pages=1483–1522 | date=March 2005 | doi=10.1086/427854 | bibcode=2005AJ....129.1483L | arxiv=astro-ph/0412070 | s2cid=2603568 | postscript=. }}</ref>

<ref name=Afsar2012>{{citation | title=Chemical Compositions of Thin-disk, High-metallicity Red Horizontal-branch Field Stars | display-authors=1 | last1=Afşar | first1=M. | last2=Sneden | first2=C. | last3=For | first3=B. -Q. | journal=The Astronomical Journal | postscript=. | volume=144 | issue=1 | id=20 | pages=20 | date=July 2012 | doi=10.1088/0004-6256/144/1/20 | bibcode=2012AJ....144...20A | arxiv=1205.3659| s2cid=119249237 }}</ref>

<ref name=DeMedeiros2000>{{citation | display-authors=1 | last1=De Medeiros | first1=J. R. | last2=do Nascimento | first2=J. D. Jr. | last3=Sankarankutty | first3=S. | last4=Costa | first4=J. M. | last5=Maia | first5=M. R. G. | title=Rotation and lithium in single giant stars | journal=Astronomy and Astrophysics | postscript=. | volume=363 | pages=239–243 | date=November 2000 | bibcode=2000A&A...363..239D | arxiv=astro-ph/0010273 }}</ref>

<ref name=Harlan1970>{{citation | last1=Harlan | first1=E. A. | last2=Taylor | first2=D. C. | title=MK classification for F- and G-type stars. II | journal=Astronomical Journal | volume=75 | issue=2 | pages=165–166 | date=March 1970 | bibcode=1970AJ.....75..165H | doi=10.1086/110956 | doi-access=free }}</ref> </references>

{{Stars of Boötes}}

{{DEFAULTSORT:32 Bootis}} [[Category:G-type giants]] [[Category:Horizontal-branch stars]] [[Category:Boötes]] [[Category:Durchmusterung objects]] [[Category:Flamsteed objects|Bootis, 32]] [[Category:Henry Draper Catalogue objects|129336]] [[Category:Hipparcos objects|071837]] [[Category:Bright Star Catalogue objects|5481]]