{{Short description|G-type star in the constellation Boötes}} {{Starbox begin}} {{Starbox observe | epoch=J2000 | constell=[[Boötes]]<ref name=xhip/> | ra={{RA|14|41|22.401}}<ref name=dr3/> | dec={{DEC|+29|03|31.70}}<ref name=dr3/> | appmag_v=7.823<ref name=aaa419_989/> }} {{Starbox character | type=[[main sequence]]<ref name=dr3/> | class=G2V<ref name=xhip/> | b-v=+0.635<ref name=ubv/> | u-b=+0.115<ref name=ubv/> | variable= }} {{Starbox astrometry | radial_v=−33.2<ref name=aaa419_989/> | prop_mo_ra=+12.418<ref name=dr3/> | prop_mo_dec=−159.824<ref name=dr3/> | parallax=21.0587 | p_error=0.0264 | parallax_footnote=<ref name=dr3/> | absmag_v=+4.49<ref name=xhip/> }} {{Starbox detail | mass={{val|1.00|0.06}}<ref name=aj130_5_2318/> | radius=1.3<ref name=dr3/> | luminosity=1.5<ref name=dr3/> | temperature={{val|fmt=commas|5,749|47}}<ref name=aj130_5_2318/> | metal_fe={{val|−0.02|0.04}}<ref name=aj130_5_2318/> | rotational_velocity=2<ref name=lubin2024/> | gravity={{val|4.16|0.13}}<ref name=aj130_5_2318/> | age_gyr=8.1<ref name=aaa419_989/> }} {{Starbox catalog | names=[[Durchmusterung|BD]]+29&nbsp;2568, [[Hipparcos Catalogue|HIP]]&nbsp;71813, [[PPM Star Catalogue|PPM]]&nbsp;103504, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;83469<ref name=SIMBAD/> }} {{Starbox reference | Simbad=HD+129357}} {{Starbox end}}

'''HD 129357''' is a [[G-type main-sequence star]] in the [[constellation]] [[Boötes]] that is located about 154 [[light year]]s from the [[Sun]]. The measured properties of this star are very similar to those of the Sun, making it a candidate [[solar twin]]. However, it has a lower abundance of lithium than the Sun and appears to be over 3 billion years older, so it may instead be a [[solar analog]].<ref name=king2005/><ref name=lubin2024/>

It was suggested by astronomer [[Olin Eggen]] that HD 129357 is a member of the [[Wolf 630]] [[moving group]] of stars that share a common motion through space. The [[Space velocity (astronomy)|space velocity]] components of HD 129357 are {{nowrap|(U, V, W)}} = {{nowrap|(+21.3, −36.3, −32.0)}}.<ref name=aj130_5_2318/>

==References== <references> <ref name=dr3>{{cite Gaia DR3|1282471810042948864}}</ref>

<ref name=king2005>{{cite journal |bibcode=2005AJ....130.2318K |title=Keck HIRES Spectroscopy of Four Candidate Solar Twins |last1=King |first1=Jeremy R. |last2=Boesgaard |first2=Ann M. |last3=Schuler |first3=Simon C. |journal=The Astronomical Journal |date=2005 |volume=130 |issue=5 |page=2318 |doi=10.1086/452640 |arxiv=astro-ph/0508004 }}</ref>

<ref name=lubin2024>{{cite journal |bibcode=2024AJ....168..240L |title=Hamilton Echelle Spectrograph Observations of Solar Analog Field Stars: Lithium Abundance and Activity |last1=Lubin |first1=Dan |last2=Holden |first2=Bradford P. |last3=Stock |first3=Camille |last4=Melis |first4=Carl |last5=Tytler |first5=David |journal=The Astronomical Journal |date=2024 |volume=168 |issue=6 |page=240 |doi=10.3847/1538-3881/ad823d |doi-access=free }}</ref>

<ref name=ubv>{{cite journal |bibcode=1987A&AS...71..413M |title=UBV Photoelectric Photometry Catalogue (1986): I. The Original data |last1=Mermilliod |first1=J. -C. |journal=Astronomy and Astrophysics Supplement Series |date=1987 |volume=71 |page=413 }}</ref>

<ref name=aaa419_989>{{cite journal | title=The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ~14000 F and G dwarfs | last=Nortdstrom, R. |display-authors=etal | journal=Astronomy and Astrophysics | year=2004 | volume=418 | pages=989–1019 | doi=10.1051/0004-6361:20035959 | bibcode=2004A&A...418..989N |arxiv = astro-ph/0405198 | s2cid=11027621 }}</ref>

<ref name=SIMBAD>{{cite simbad | title=HD 129357 | access-date=2011-01-21 }}</ref>

<ref name=aj130_5_2318>{{cite journal | title=Keck HIRES Spectroscopy of Four Candidate Solar Twins |author1=King, Jeremy R. |author2=Boesgaard, Ann M. |author3=Schuler, Simon C. | journal=The Astronomical Journal | volume=130 | issue=5 | pages=2318–2325 |date=November 2005 | doi=10.1086/452640 | bibcode=2005AJ....130.2318K |arxiv = astro-ph/0508004 |s2cid=6535115 }}</ref>

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

{{Stars of Boötes}}

[[Category:Boötes]] [[Category:Solar analogs|HD, 129357]] [[Category:G-type main-sequence stars]] [[Category:Henry Draper Catalogue objects|129357]] [[Category:Hipparcos objects|071813]] [[Category:Durchmusterung objects]]