{{Short description|Star in the constellation Centaurus}} {{Starbox begin}} {{Starbox observe | epoch = J2000 | constell = [[Centaurus]]<ref name=xhip/> | ra = {{RA|13|10|39.824}}<ref name=GaiaDR3/> | dec = {{DEC|−35|03|17.21}}<ref name=GaiaDR3/> | appmag_v = 8.73<ref name="Mayor2004"/> }} {{Starbox character | type = [[main sequence]]<ref name=GaiaDR3/> | class = K3 V<ref name="Mayor2004"/> | b-v = 0.982<ref name="Mayor2004"/> | variable = }} {{Starbox astrometry | radial_v = 33.350{{±|0.0004}}<ref name=GaiaRV/> | prop_mo_ra = −137.143 | prop_mo_dec = −324.874 | pm_footnote = <ref name=GaiaDR3/> | parallax = 35.7355 | p_error = 0.0200 | parallax_footnote = <ref name=GaiaDR3/> | absmag_v = 6.43<ref name=xhip/> }} {{Starbox detail | radius = 0.73{{±|0.01}}<ref name=Bonfanti_et_al_2016/> | mass = 0.76{{±|0.01}}<ref name=Bonfanti_et_al_2016/> | temperature = 4,926{{±|13}}<ref name=Bonfanti_et_al_2016/> | gravity = 4.58{{±|0.02}}<ref name=Bonfanti_et_al_2016/> | metal_fe = −0.012<ref name=Rice_Brewer_2020/> | rotational_velocity = 3.06<ref name=Rice_Brewer_2020/> | luminosity = 0.28{{±|0.01}}<ref name=Bonfanti_et_al_2016/> | age_gyr = 8.8{{±|2.8}}<ref name=Bonfanti_et_al_2016/> }} {{Starbox catalog | names = {{odlist | CD=−34°8698 | HD=114386 | HIP=64295 | LTT=5041 | NLTT=33118 | PPM=291056 | SAO=204193 }}<ref name=SIMBAD/> }} {{Starbox reference | Simbad = HD+114386 | NSTED = HD 114386 }} {{Starbox end}}
'''HD 114386''' is a [[star]] with a pair of orbiting [[exoplanet]]s in the southern [[constellation]] of [[Centaurus]]. It has an [[apparent visual magnitude]] of 8.73,<ref name="Mayor2004"/> which means it cannot be viewed with the naked eye but can be seen with a [[telescope]] or good [[binoculars]]. Based on [[stellar parallax|parallax]] measurements, the system is located at a distance of 91 [[light-year]]s from the Sun. It is receding with a [[radial velocity]] of 33.4 km/s.<ref name=GaiaRV/> The star shows a high [[proper motion]], traversing the [[celestial sphere]] at an [[angular rate]] of {{val|0.318|u=arcsec yr<sup>−1</sup>}}.<ref name=Luyten1995/>
The [[stellar spectrum|spectrum]] of HD 114386 yields a [[stellar classification]] of K3 V,<ref name="Mayor2004"/> matching a [[K-type main-sequence star]], or orange dwarf. It has 76% of the mass of the Sun and 73% of the Sun's radius. HD 114386 is a much older star than the Sun with an estimated age of roughly nine billion years.<ref name=Bonfanti_et_al_2016/> The abundance of iron in the [[stellar atmosphere]], a measure of the star's [[metallicity]], is nearly solar.<ref name=Rice_Brewer_2020/> It is rather dim compared to the Sun, radiating just 28% of the luminosity of the Sun from its [[photosphere]] at an [[effective temperature]] of 4,926 K.<ref name=Bonfanti_et_al_2016/>
==Planetary system== In 2004, the [[Geneva Extrasolar Planet Search Team]] announced the discovery of an [[exoplanet]] orbiting the star by the [[radial velocity method]].<ref name="Mayor2004"/> The preliminary data for a second, inner, exoplanet was released in 2011;<ref name=Mayor_et_al_2011/> it was confirmed in 2026.<ref name=Wu2026/> The inclination and [[true mass]] of the outer planet have been determined by [[astrometry]].<ref name=Wu2026/>
{{OrbitboxPlanet begin | table_ref = <ref name=Wu2026/> }} {{OrbitboxPlanet | exoplanet = c | mass = {{val|0.37|0.03|p=≥}} | period = {{val|444.00|0.93|0.88}} | semimajor = {{val|1.05|0.04|0.04}} | eccentricity = {{val|0.10|0.03}} }} {{OrbitboxPlanet | exoplanet = [[HD 114386 b|b]] | mass = {{val|1.46|0.37|0.22}} | period = {{val|1049.4|1.5|1.2}} | semimajor = {{val|1.86|0.07|0.08}} | eccentricity = {{val|0.02|0.01}} | inclination = {{val|57|22|15}} }} {{Orbitbox end}}
== See also == * [[47 Ursae Majoris]] * [[List of extrasolar planets]]
==References== {{Reflist|refs=
<ref name=SIMBAD>{{cite simbad | title=HD 114386 | access-date=2024-01-09 }}</ref>
<ref name=GaiaDR3>{{Cite Gaia DR3|6166971574132849792}}</ref>
<ref name=xhip>{{cite XHIP|64295}}</ref>
<ref name=GaiaRV>{{cite journal | title=Gaia Data Release 2. The catalogue of radial velocity standard stars | 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. | display-authors=1 | journal=Astronomy and Astrophysics | volume=616 | pages=A7 | year=2018 | bibcode=2018A&A...616A...7S | arxiv=1804.09370 | doi=10.1051/0004-6361/201832795 | s2cid=52952408 }}</ref>
<ref name=Bonfanti_et_al_2016>{{cite journal | title=Age consistency between exoplanet hosts and field stars | display-authors=1 | last1=Bonfanti | first1=A. | last2=Ortolani | first2=S. | last3=Nascimbeni | first3=V. | journal=Astronomy & Astrophysics | year=2016 | volume=585 | id=A5 | pages=14 | arxiv=1511.01744 | bibcode=2016A&A...585A...5B | doi=10.1051/0004-6361/201527297 | s2cid=53971692 }}</ref>
<ref name=Rice_Brewer_2020>{{cite journal | title=Stellar Characterization of Keck HIRES Spectra with The Cannon | last1=Rice | first1=Malena | last2=Brewer | first2=John M. | journal=The Astrophysical Journal | volume=898 | issue=2 | id=119 | date=August 2020 | page=119 | doi=10.3847/1538-4357/ab9f96 | doi-access=free | arxiv=2007.02942 | bibcode=2020ApJ...898..119R }}</ref>
<ref name=Mayor_et_al_2011>{{cite arXiv | display-authors=1 | title=The HARPS search for southern extra-solar planets XXXIV. Occurrence, mass distribution and orbital properties of super-Earths and Neptune-mass planets | last1=Mayor |first1=M. |last2=Marmier |first2=M. | last3=Lovis |first3=C. |last4=Udry |first4=S. | last5=Ségransan |first5=D. |last6=Pepe |first6=F. | last7=Benz |first7=W. |last8=Bertaux |first8=J.-L. | last9=Bouchy |first9=F. |last10=Dumusque |first10=X. | last11=Curto |first11=G. Lo |last12=Mordasini |first12=C. | last13=Queloz |first13=D. |last14=Santos |first14=N. C. | date=September 2011 | class=astro-ph.EP | eprint=1109.2497}}</ref>
<ref name="Mayor2004">{{cite journal | title=The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE | last1=Mayor | first1=M. | last2=Udry | first2=S. | last3=Naef | first3=D. | last4=Pepe | first4=F. | last5=Queloz | first5=D. | last6=Santos | first6=N. C. | last7=Burnet | first7=M. | display-authors=1 | journal=Astronomy and Astrophysics | volume=415 | issue=1 | pages=391–402 | year=2004 | arxiv=astro-ph/0310316 | bibcode=2004A&A...415..391M | doi=10.1051/0004-6361:20034250 | s2cid=5233877 }}</ref>
<ref name=Luyten1995>{{cite journal | title=NLTT Catalogue (Luyten, 1979) | last=Luyten | first=W. J. | journal=VizieR Online Data Catalog | date=June 1995 | bibcode=1995yCat.1098....0L }}</ref>
<ref name=Wu2026>{{cite arXiv |last1=Wu |first1=Yiyun |last2=Xiao |first2=Guang-Yao |display-authors=etal |date=January 2026 |title=Detection of four cold Jupiters through combined analyses of radial velocity and astrometry data |arxiv=2601.11280 |class=astro-ph.EP}}<!-- update citation when published --></ref>
}}
{{Sky|13|10|39.8231|-|35|03|17.218|91.42}} {{Stars of Centaurus}}
<!-- Properties --> [[Category:K-type main-sequence stars]] [[Category:Planetary systems with two confirmed planets]] <!-- Location/catalogues --> [[Category:Centaurus]] [[Category:Durchmusterung objects|CD-34 08698]] [[Category:Henry Draper Catalogue objects|114386]] [[Category:Hipparcos objects|064295]]