{{use dmy dates|date=November 2024}} {{Short description|Star in the constellation Boötes}} {{Starbox begin}} {{Starbox image | image= {{Location mark |image=Boötes IAU.svg|alt=|float=center|width=300 |label=|position=right |mark=Red circle.svg|mark_width=10|mark_link=HD 127334 |x=500|y=370 }} |caption=Location of HD 127334 (circled) }} {{Starbox observe | epoch = J2000.0 | constell = [[Boötes]]<ref name=xhip/> | ra = {{RA|14|29|36.80877}}<ref name=DR3/> | dec = {{DEC|+41|47|45.2854}}<ref name=DR3/> | appmag_v = 6.36<ref name=Rajpaul2020/> }} {{Starbox character | type = | class = G5V CH0.3<ref name=Gray2003/> | variable = | b-v = 1.010<ref name=Rajpaul2020/><ref name=Oja1991/> | j-h = 0.258<ref name="simbad"/> | j-k = 0.369<ref name="simbad"/> }} {{Starbox astrometry | radial_v = {{val|−0.401|0.0007}}<ref name=Soubiran2018/> | prop_mo_ra = 161.373<ref name=DR3/> | prop_mo_dec = −220.361<ref name=DR3/> | parallax = 42.7526 | p_error = 0.0174 | parallax_footnote = <ref name=DR3/> | absmag_v = +4.48<ref name=xhip/> }} {{Starbox detail | source = | mass = {{val|1.02|0.02}},<ref name=Gonzalez2015/> 1.07<ref name=Fuhrmann2017/> | radius = 1.2<ref name=tic/> | luminosity = 1.4<ref name=tic/> | gravity = {{val|4.37|0.13}}<ref name=Lienhard2022/> | metal_fe = {{val|0.24|0.06}},<ref name=Lienhard2022/> {{val|0.19|0.04}}<ref name=Gonzalez2015/> | temperature = {{val|5758|76}},<ref name=Lienhard2022/> {{val|5635|50}}<ref name=Gonzalez2015/> | rotation = | rotational_velocity = 7.1<ref name=deAndres2024/> | age_gyr = {{val|8.6|1.3}},<ref name=Gonzalez2015/> 10.5–10.7,<ref name=Zenoviene2015/> ~7.1<ref name=deAndres2024/> }} {{Starbox catalog | names = {{odlist | AG=+42°1283 | BD=+42°2508 | GC=19550 | GJ=3852 | Gaia DR2=1491593733326694912 | TYC=3039-237-1 | HIP=70873 | 2MASS=J14293678+4147456 | PPM=54166 | HD=127334 | SAO=45075 | TIC=27525457 | HR=5423}}<ref name=simbad/> }} {{Starbox reference | Simbad = HD+127334 }} {{Starbox end}} '''HD 127334''' is a solitary<ref name=Fuhrmann2017/> [[Sun]]-like star in the northern [[constellation]] of [[Boötes]]. With an [[apparent magnitude]] of 6.36, it can be faintly seen by the naked eye from [[Earth]] as a yellow-hued dot of light. As such, it is listed in the [[Bright Star Catalogue]] as '''HR 5423'''. It is located at a distance of {{convert|76.29|ly|pc|abbr=off}} according to [[Gaia EDR3]] [[Stellar parallax|parallax]] measurements.
==Stellar properties== This is a [[G-type main-sequence star]] much like the Sun, with a [[Stellar classification|spectral type]] of G5V CH0.3,<ref name=Gray2003/> where the suffix notation indicates an anomalous overabundance of the [[methylidyne radical]]. It is slightly more massive than the Sun but marginally cooler at {{convert|5758|K|C F}} or {{convert|5635|K|C F}}. The Sun's [[effective temperature]], for comparison, is {{convert|5772|K|C F}}.<ref name=Prsa2016/>
The star belongs to the [[thin disk]] population of the [[Milky Way]]<ref name=Zenoviene2015/> and is thought to be ancient: its age estimate varies between publications, but generally lies between 7–11 [[billion years|Gyr]], much older than the [[Solar System]] (aged 4.568 Gyr<ref name=Bouvier2010/>). Despite its old age, it is enriched in heavy elements, possessing a super-solar [[metallicity]] of {{val|0.24|0.06}} or {{val|0.19|0.04|u=dex}}.
It has a low or very low level of [[Stellar magnetic field#Surface activity|surface activity]], unlike some other similar stars such as [[Toliman]] (Alpha Centauri B).<ref name=Rajpaul2020/>
HD 127334 has been a long-term target of the [[Lick–Carnegie Exoplanet Survey|California Planet Search]],<ref name=Johnson2009/> but no [[exoplanet]]s have been discovered to orbit the star.<ref name=Lienhard2022/>
==See also== * [[Solar analog]] * [[List of star systems within 75–80 light-years]]
==References== <references>
<ref name=simbad>{{cite simbad|title=HD 127334|access-date=2024-11-15}}</ref>
<ref name=DR3>{{cite Gaia DR3|1491593733326694912}}</ref>
<ref name=tic>{{cite journal |bibcode=2019AJ....158..138S |title=The Revised TESS Input Catalog and Candidate Target List |last1=Stassun |first1=Keivan G. |last2=Oelkers |first2=Ryan J. |last3=Paegert |first3=Martin |last4=Torres |first4=Guillermo |last5=Pepper |first5=Joshua |last6=De Lee |first6=Nathan |last7=Collins |first7=Kevin |last8=Latham |first8=David W. |last9=Muirhead |first9=Philip S. |last10=Chittidi |first10=Jay |last11=Rojas-Ayala |first11=Bárbara |last12=Fleming |first12=Scott W. |last13=Rose |first13=Mark E. |last14=Tenenbaum |first14=Peter |last15=Ting |first15=Eric B. |last16=Kane |first16=Stephen R. |last17=Barclay |first17=Thomas |last18=Bean |first18=Jacob L. |last19=Brassuer |first19=C. E. |last20=Charbonneau |first20=David |last21=Ge |first21=Jian |last22=Lissauer |first22=Jack J. |last23=Mann |first23=Andrew W. |last24=McLean |first24=Brian |last25=Mullally |first25=Susan |last26=Narita |first26=Norio |last27=Plavchan |first27=Peter |last28=Ricker |first28=George R. |last29=Sasselov |first29=Dimitar |last30=Seager |first30=S. |journal=The Astronomical Journal |date=2019 |volume=158 |issue=4 |page=138 |doi=10.3847/1538-3881/ab3467 |doi-access=free |arxiv=1905.10694 |display-authors=1 }}</ref>
<ref name=xhip>{{cite journal |bibcode=2012AstL...38..331A |title=XHIP: An extended hipparcos compilation |last1=Anderson |first1=E. |last2=Francis |first2=Ch. |journal=Astronomy Letters |date=2012 |volume=38 |issue=5 |page=331 |doi=10.1134/S1063773712050015 |arxiv=1108.4971 }}</ref>
<ref name=Soubiran2018>{{cite journal | display-authors=1 | last1=Soubiran | first1=C. | last2=Jasniewicz | first2=G. | last3=Chemin | first3=L. | last4=Zurbach | first4=C. | last5=Brouillet | first5=N. | last6=Panuzzo | first6=P. | last7=Sartoretti | first7=P. | last8=Katz | first8=D. | last9=Le Campion | first9=J.-F. | last10=Marchal | first10=O. | last11=Hestroffer | first11=D. | last12=Thévenin | first12=F. | last13=Crifo | first13=F. | last14=Udry | first14=S. | last15=Cropper | first15=M. | last16=Seabroke | first16=G. | last17=Viala | first17=Y. | last18=Benson | first18=K. | last19=Blomme | first19=R. | last20=Jean-Antoine | first20=A. | last21=Huckle | first21=H. | last22=Smith | first22=M. | last23=Baker | first23=S. G. | last24=Damerdji | first24=Y. | last25=Dolding | first25=C. | last26=Frémat | first26=Y. | last27=Gosset | first27=E. | last28=Guerrier | first28=A. | last29=Guy | first29=L. P. | last30=Haigron | first30=R. | last31=Janßen | first31=K. | last32=Plum | first32=G. | last33=Fabre | first33=C. | last34=Lasne | first34=Y. | last35=Pailler | first35=F. | last36=Panem | first36=C. | last37=Riclet | first37=F. | last38=Royer | first38=F. | last39=Tauran | first39=G. | last40=Zwitter | first40=T. | last41=Gueguen | first41=A. | last42=Turon | first42=C. | title=Gaia Data Release 2: The catalogue of radial velocity standard stars | journal=Astronomy & Astrophysics | volume=616 | date=2018 | issn=0004-6361 | doi=10.1051/0004-6361/201832795 | doi-access=free | page=A7| arxiv=1804.09370 | bibcode=2018A&A...616A...7S }}</ref>
<ref name=Gray2003>{{cite journal | display-authors=1 | last1=Gray | first1=R. O. | last2=Corbally | first2=C. J. | last3=Garrison | first3=R. F. | last4=McFadden | first4=M. T. | last5=Robinson | first5=P. E. | title=Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I. | journal=The Astronomical Journal | volume=126 | issue=4 | date=2003 | issn=0004-6256 | doi=10.1086/378365 | doi-access=free | pages=2048–2059| arxiv=astro-ph/0308182 | bibcode=2003AJ....126.2048G }}</ref>
<ref name=Rajpaul2020>{{cite journal | display-authors=1 | last1=Rajpaul | first1=V M | last2=Aigrain | first2=S | last3=Buchhave | first3=L A | title=A robust, template-free approach to precise radial velocity extraction | journal=Monthly Notices of the Royal Astronomical Society | volume=492 | issue=3 | date=2020-03-01 | issn=0035-8711 | doi=10.1093/mnras/stz3599 | doi-access=free | pages=3960–3983| arxiv=1912.09563 }}</ref>
<ref name=Oja1991>{{cite journal | last=Oja | first=T. | title=UBV photometry of stars whose positions are accurately known. VI. | journal=Astronomy & Astrophysics Supplement Series | volume=89 | page=415 | date=August 1991 | bibcode=1991A&AS...89..415O}}</ref>
<ref name=Fuhrmann2017>{{cite journal | display-authors=1 | last1=Fuhrmann | first1=K. | last2=Chini | first2=R. | last3=Kaderhandt | first3=L. | last4=Chen | first4=Z. | title=Multiplicity among Solar-type Stars | journal=The Astrophysical Journal | volume=836 | issue=1 | date=2017-02-10 | issn=0004-637X | doi=10.3847/1538-4357/836/1/139 | doi-access=free | page=139| bibcode=2017ApJ...836..139F }}</ref>
<ref name=Lienhard2022>{{cite journal | last1=Lienhard | first1=F | last2=Mortier | first2=A | last3=Buchhave | first3=L | last4=Collier Cameron | first4=A | last5=López-Morales | first5=M | last6=Sozzetti | first6=A | last7=Watson | first7=C A | last8=Cosentino | first8=R | title=Multi-mask least-squares deconvolution: extracting RVs using tailored masks | journal=Monthly Notices of the Royal Astronomical Society | volume=513 | issue=4 | date=2022-05-26 | issn=0035-8711 | doi=10.1093/mnras/stac1098 | doi-access=free | pages=5328–5343| arxiv=2204.13556 }}</ref>
<ref name=Zenoviene2015>{{cite journal | last1=Ženovienė | first1=R. | last2=Tautvaišienė | first2=G. | last3=Nordström | first3=B. | last4=Stonkutė | first4=E. | last5=Barisevičius | first5=G. | title=Stellar substructures in the solar neighbourhood: IV. Kinematic Group 1 in the Geneva-Copenhagen survey | journal=Astronomy & Astrophysics | volume=576 | date=2015 | issn=0004-6361 | doi=10.1051/0004-6361/201425088 | doi-access=free | page=A113| arxiv=1501.06401 | bibcode=2015A&A...576A.113Z }}</ref>
<ref name=Gonzalez2015>{{cite journal | last=Gonzalez | first=G. | title=Parent stars of extrasolar planets – XIV. Strong evidence of Li abundance deficit | journal=Monthly Notices of the Royal Astronomical Society | volume=446 | issue=1 | date=2015-01-01 | issn=1365-2966 | doi=10.1093/mnras/stu2156 | doi-access=free | pages=1020–1025| arxiv=1410.4108 }}</ref>
<ref name=deAndres2024>{{cite journal | last1=de Andrés | first1=F. Llorente | last2=de la Reza | first2=R. | last3=Cruz | first3=P. | last4=Cuenda-Muñoz | first4=D. | last5=Alfaro | first5=E. J. | last6=Chavero | first6=C. | last7=Cifuentes | first7=C. | title=The evolution of lithium in FGK dwarf stars: Influence of planets and Galactic migration | journal=Astronomy & Astrophysics | volume=684 | date=2024 | issn=0004-6361 | doi=10.1051/0004-6361/202346744 | doi-access=free | page=A28| arxiv=2402.01315 | bibcode=2024A&A...684A..28L }}</ref>
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<ref name="Prsa2016">{{Cite journal |last1=Prša |first1=Andrej |last2=Harmanec |first2=Petr |last3=Torres |first3=Guillermo |last4=Mamajek |first4=Eric |last5=Asplund |first5=Martin |last6=Capitaine |first6=Nicole |last7=Christensen-Dalsgaard |first7=Jørgen |last8=Depagne |first8=Éric |last9=Haberreiter |first9=Margit |last10=Hekker |first10=Saskia |last11=Hilton |first11=James |last12=Kopp |first12=Greg |last13=Kostov |first13=Veselin |last14=Kurtz |first14=Donald W. |last15=Laskar |first15=Jacques |display-authors=3 |date=2016-08-01 |title=NOMINAL VALUES FOR SELECTED SOLAR AND PLANETARY QUANTITIES: IAU 2015 RESOLUTION B3 * † |journal=The Astronomical Journal |volume=152 |issue=2 |pages=41 |doi=10.3847/0004-6256/152/2/41 |issn=0004-6256 |arxiv=1510.07674 |last16=Laskar |first16=J. |last17=Mason |first17=B. D. |last18=Milone |first18=E. F. |last19=Montgomery |first19=M. M. |last20=Richards |first20=M. T. |last21=Schou |first21=J. |last22=Stewart |first22=S. G.|doi-access=free }}</ref>
<ref name=Bouvier2010>{{Cite journal |last1=Bouvier |first1=A. |last2=Wadhwa |first2=M. |author-link2=Meenakshi Wadhwa |year=2010 |title=The age of the Solar System redefined by the oldest Pb–Pb age of a meteoritic inclusion |journal=Nature Geoscience |volume=3 |issue=9 |pages= 637–641 |bibcode=2010NatGe...3..637B |doi=10.1038/NGEO941 |s2cid=56092512}}</ref>
</references> {{Boötes}} [[Category:G-type main-sequence stars]] [[Category:Boötes]] [[Category:Henry Draper Catalogue objects|127334]] [[Category:Durchmusterung objects|BD+42 02508]] [[Category:Hipparcos objects|070873]] [[Category:Bright Star Catalogue objects|5423]]