{{Short description|Bright giant star in the constellation Centaurus}} {{about-distinguish|m Centauri|M Centauri}} {{Starbox begin | name = m Centauri }} {{Starbox image | image = {{Location mark |image=Musca constellation map.svg|alt=|float=center|width=280 |label=|position=right |mark=Red circle.svg|mark_width=10|mark_link=HD 116243 |x=295|y=200 }} | caption = Location of m Centauri (circled in red) }} {{Starbox observe | epoch = J2000.0 | constell = [[Centaurus]]<ref name=Anderson2012/> | ra = {{RA|13|24|00.48075}}<ref name=GaiaDR2/> | dec = {{DEC|−64|32|08.4097}}<ref name=GaiaDR2/> | appmag_v = +4.52<ref name=Anderson2012/> }} {{Starbox character | type = | class = G5IIb<ref name=Keenan1989/> | b-v = {{Val|0.822|0.030}}<ref name=Anderson2012/> | u-b = | variable = }} {{Starbox astrometry | radial_v = {{Val|+13.26|0.13}}<ref name=GaiaDR2/> | prop_mo_ra = +29.793<ref name=GaiaDR2/> | prop_mo_dec = −21.465<ref name=GaiaDR2/> | parallax = 13.3749 | p_error = 0.1716 | parallax_footnote = <ref name=GaiaDR2/> | absmag_v = 0.01<ref name=Anderson2012/> }} {{Starbox detail | source = | mass = 1.4<ref name=starhorse/> | radius = {{Val|11.6|0.2|2.6}}<ref name=GaiaDR2/> | luminosity = {{Val|88.8|1.3}}<ref name=GaiaDR2/> | temperature = {{Val|5197|704|51|fmt=commas}}<ref name=GaiaDR2/> | metal_fe = −0.13<ref name=Alves2015/> | gravity = 2.97<ref name=Alves2015/> | rotational_velocity = 4.3<ref name=pasquini2000/> | age_myr = }} {{Starbox catalog | names = {{odlist | B=m Cen | CP=−63°2732 | FK5=2985 | HD=116243 | HIP=65387 | HR=5041 | SAO=252293 | GC=18107 }}<ref name=SIMBAD/> }} {{Starbox reference | Simbad = HD+116243 }} {{Starbox end}}
'''HD 116243''' is a single<ref name=Eggleton2008/> [[star]] in the southern [[constellation]] of [[Centaurus]]. It has the [[Bayer designation]] '''m Centauri''', while ''HD 116243'' is the identifier from the ''[[Henry Draper catalogue]]''.<ref name=SIMBAD/> This star has a yellow hue and is faintly visible to the naked eye with an [[apparent visual magnitude]] of +4.52.<ref name=Anderson2012/> It is located at a distance of approximately 244 [[light year]]s from the [[Sun]] based on [[stellar parallax|parallax]],<ref name=GaiaDR2/> and it has an [[absolute magnitude]] of 0.01.<ref name=Anderson2012/> It is drifting further away with a [[radial velocity]] of +13.3 km/s.<ref name=GaiaDR2/>
This object is an aging [[bright giant]] star with a [[stellar classification]] of G5IIb<ref name=Keenan1989/> With the supply of hydrogen at its [[stellar core|core]] exhausted, it has expanded to 12 times the [[radius of the Sun]]. The star is radiating 89 times the [[luminosity of the Sun]] from its enlarged [[photosphere]] at an [[effective temperature]] of {{val|fmt=commas|5,197|ul=K}}.<ref name=GaiaDR2/>
==References== {{Reflist|colwidth=30em|refs=
<ref name=GaiaDR2>{{cite DR2|5864836602250358528}}</ref>
<ref name=SIMBAD>{{cite simbad | title=m Cen | access-date=2020-03-03}}</ref>
<ref name=Anderson2012>{{cite XHIP|65387}}</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 | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | s2cid=14878976 | postscript=. }}</ref>
<ref name=Alves2015>{{citation | display-authors=1 | last1=Alves | first1=S. | last2=Benamati | first2=L. | last3=Santos | first3=N. C. | last4=Adibekyan | first4=V. Zh. | last5=Sousa | first5=S. G. | last6=Israelian | first6=G. | last7=De Medeiros | first7=J. R. | last8=Lovis | first8=C. | last9=Udry | first9=S. | title=Determination of the spectroscopic stellar parameters for 257 field giant stars | journal=Monthly Notices of the Royal Astronomical Society | volume=448 | issue=3 | pages=2749–2765 | date=April 2015 | doi=10.1093/mnras/stv189 | doi-access=free | bibcode=2015MNRAS.448.2749A | arxiv=1503.02556 | postscript=. }}</ref>
<ref name=Keenan1989>{{citation | last1=Keenan | first1=Philip C. | last2=McNeil | first2=Raymond C. | title=The Perkins catalog of revised MK types for the cooler stars | journal=Astrophysical Journal Supplement Series | volume=71 | pages=245 | year=1989 | postscript=. | bibcode=1989ApJS...71..245K | doi=10.1086/191373 }}</ref>
<ref name=pasquini2000>{{citation | display-authors=1 | last1=Pasquini | first1=L. | last2=de Medeiros | first2=J. R. | last3=Girardi | first3=L. | title=Ca II activity and rotation in F-K evolved stars | journal= Astronomy and Astrophysics | postscript=. | volume=361 | pages=1011–1022 | date=2000 | bibcode=2000A&A...361.1011P | arxiv=astro-ph/0008109 }}</ref>
<ref name=starhorse>{{citation |postscript=. |bibcode=2019A&A...628A..94A |title=Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18 |last1=Anders |first1=F. |last2=Khalatyan |first2=A. |last3=Chiappini |first3=C. |last4=Queiroz |first4=A. B. |last5=Santiago |first5=B. X. |last6=Jordi |first6=C. |author6-link=Carme Jordi |last7=Girardi |first7=L. |last8=Brown |first8=A. G. A. |last9=Matijevič |first9=G. |last10=Monari |first10=G. |last11=Cantat-Gaudin |first11=T. |last12=Weiler |first12=M. |last13=Khan |first13=S. |last14=Miglio |first14=A. |last15=Carrillo |first15=I. |last16=Romero-Gómez |first16=M. |last17=Minchev |first17=I. |last18=De Jong |first18=R. S. |last19=Antoja |first19=T. |last20=Ramos |first20=P. |last21=Steinmetz |first21=M. |last22=Enke |first22=H. |journal=Astronomy and Astrophysics |volume=628 |pages=A94 |year=2019 |arxiv=1904.11302 |doi=10.1051/0004-6361/201935765 |s2cid=131780028 }}</ref>
}}
{{Stars of Centaurus}}
{{DEFAULTSORT:Hd 116243}}
[[Category:G-type bright giants]] [[Category:Bayer objects|Centauri, m]] [[Category:Centaurus]] [[Category:Durchmusterung objects|CD-63 00841]] [[Category:Henry Draper Catalogue objects|116243]] [[Category:Hipparcos objects|065387]] [[Category:Bright Star Catalogue objects|5041]]