{{Short description|Star in the constellation Centaurus}} {{about|c<sup>1</sup> Centauri|C<sup>1</sup> Centauri|V763 Centauri|other stars with this [[Bayer designation]]|C Centauri}} {{Starbox begin | name = c<sup>1</sup> Centauri }} {{Starbox image | image = {{Location mark |image=Centaurus constellation map.svg|alt=|float=center|width=280 |label=|position=right |mark=Red circle.svg|mark_width=10|mark_link=HD 129456 |x=192|y=315 }} | caption = Location of c<sup>1</sup> Centauri (circled in red) }} {{Starbox observe | epoch = J2000.0 | constell = [[Centaurus]]<ref name=constellation/> | ra = {{RA|14|43|39.44}}<ref name="van Leeuwen2007"/> | dec = {{DEC|−35|10|25.2}}<ref name="van Leeuwen2007"/> | appmag_v = +4.06<ref name=aaa342_831/> }} {{Starbox character | type = [[red giant branch]]<ref name=jura1999/> | class = K3III<ref name=aaa342_831/> | b-v = +1.356<ref name=aaa342_831/> | u-b = +1.53 | variable = none }} {{Starbox astrometry | radial_v = −38 | prop_mo_ra = {{val|-61.46|0.15}}<ref name="van Leeuwen2007"/> | prop_mo_dec = {{val|-176.84|0.14}}<ref name="van Leeuwen2007"/> | parallax = 15.57 | p_error = 0.16 | parallax_footnote = <ref name="van Leeuwen2007"/> | absmag_v = −0.20<ref name=aaa342_831/> }} {{Starbox detail | mass = 1.23<ref name=charbonnel2020/> | temperature = 4,240<ref name=charbonnel2020/> | luminosity = 174<ref name=charbonnel2020/> | radius = 25<ref name=tic/> | gravity = 1.86<ref name=ap1999/> | metal_fe = −0.20<ref name=charbonnel2020/> | age_myr = }} {{Starbox catalog | names = [[Harvard Revised catalogue|HR]]&nbsp;5485, [[Henry Draper Catalogue|HD]]&nbsp;129456, [[Durchmusterung|CD]]−34°9868, [[Fifth Fundamental Catalogue|FK5]]&nbsp;544, [[Hipparcos catalogue|HIP]]&nbsp;72010, [[Smithsonian Astrophysical Observatory catalogue|SAO]]&nbsp;205871, GC&nbsp;19820<ref name=simbad/> }} {{Starbox reference | Simbad = HD+129456 }} {{Starbox end}} '''HD 129456''', also known by its [[Bayer designation]] '''c<sup>1</sup> Centauri''' (c<sup>1</sup> Cen), is a [[star]] in the [[constellation]] [[Centaurus]]. c¹ Centauri is an orange [[stellar classification|K-type]] [[giant star|giant]] with an [[apparent magnitude]] of +4.06. It is approximately 209 [[light years]] from [[Earth]].

==References== <references> <ref name=simbad>{{cite simbad |title=HD 129456 |access-date=2025-05-22 }}</ref>

<ref name=constellation>{{cite constellation|HD 129456}}</ref>

<ref name=jura1999>{{cite journal |bibcode=1999ApJ...515..706J |title=Dust around First-Ascent Red Giants |last1=Jura |first1=M. |journal=The Astrophysical Journal |date=1999 |volume=515 |issue=2 |page=706 |doi=10.1086/307064 }}</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=ap1999>{{cite journal |bibcode=1999A&A...352..555A |title=Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures |last1=Allende Prieto |first1=C. |last2=Lambert |first2=D. L. |journal=Astronomy and Astrophysics |date=1999 |volume=352 |page=555 |arxiv=astro-ph/9911002 }}</ref>

<ref name=charbonnel2020>{{cite journal |bibcode=2020A&A...633A..34C |title=Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era |last1=Charbonnel |first1=C. |last2=Lagarde |first2=N. |last3=Jasniewicz |first3=G. |last4=North |first4=P. L. |last5=Shetrone |first5=M. |last6=Krugler Hollek |first6=J. |last7=Smith |first7=V. V. |last8=Smiljanic |first8=R. |last9=Palacios |first9=A. |last10=Ottoni |first10=G. |journal=Astronomy and Astrophysics |date=2020 |volume=633 |pages=A34 |doi=10.1051/0004-6361/201936360 |arxiv=1910.12732 }}</ref>

<ref name=aaa342_831>{{cite journal | display-authors=1 | last1=Jasniewicz | first1=G. | last2=Parthasarathy | first2=M. | last3=de Laverny | first3=P. | last4=Thévenin | first4=F. | title=Late-type giants with infrared excess. I. Lithium abundances | journal=Astronomy and Astrophysics | volume=342 | pages=831–838 |date=February 1999 | bibcode=1999A&A...342..831J }}</ref>

<ref name="van Leeuwen2007">{{R:Van Leeuwen 2007 Validation of the new Hipparcos reduction}} [http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=71768 Vizier catalog entry ] </ref> </references>

{{Stars of Centaurus}}

{{DEFAULTSORT:HD 129456}} [[Category:Bayer objects|Centauri, c1]] [[Category:Centaurus]] [[Category:Henry Draper Catalogue objects|129456]] [[Category:K-type giants]] [[Category:Bright Star Catalogue objects|5485]] [[Category:Hipparcos objects|072010]] [[Category:Durchmusterung objects|CD-34 09868]]

{{giant-star-stub}}