{{Short description|Star in the constellation Centaurus}} {{Starbox begin}} {{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 102350 |x=785|y=915 }} | caption = Location of HD 102350 (circled in red) }} {{Starbox observe | epoch = J2000 | constell = [[Centaurus (constellation)|Centaurus]]<ref name=constellation/> | ra = {{RA|11|46|30.82257}}<ref name=vanLeeuwen2007/> | dec = {{DEC|−61|10|42.2364}}<ref name=vanLeeuwen2007/> | appmag_v = 4.11<ref name=Anderson2012/> }} {{Starbox character | type = | class = G0II<ref name=Tetzlaff2011/> or G5Ib/II<ref name=Houk1979/> | b-v = {{Val|0.895|0.008}}<ref name=Anderson2012/> | u-b = | variable = suspected [[Cepheid variable|δ Cep]]<ref name=Samus2017/> }} {{Starbox astrometry | radial_v = {{val|−3.4|0.7}}<ref name=Anderson2012/> | prop_mo_ra = {{val|−21.87|0.16}}<ref name=vanLeeuwen2007/> | prop_mo_dec = {{val|−16.41|0.15}}<ref name=vanLeeuwen2007/> | parallax = 8.37 | p_error = 0.17 | parallax_footnote = <ref name=vanLeeuwen2007/> | absmag_v = −1.51<ref name=Cardini2005/> }} {{Starbox detail | source = | mass = | radius = {{Val|21.96|1.70|3.27}}<ref name=GaiaDR2/> | luminosity = {{Val|282.8|9.0}}<ref name=GaiaDR2/> | gravity = | temperature = {{Val|5051|424|185|fmt=commas}}<ref name=GaiaDR2/> | metal_fe = | rotational_velocity = | age_gyr = }} {{Starbox catalog | names = {{odlist | CD=−60°3741 | FK5=443 | HD=102350 | HIP=57439 | HR=4522 | NSV=5325 | SAO=251579 | WDS=J11465-6111A }}<ref name=SIMBAD/> }} {{Starbox reference | Simbad = HD+102350 }} {{End}}

'''HD 102350''' is a single<ref name=Eggleton2008/> [[star]] in the [[constellation]] [[Centaurus (constellation)|Centaurus]]. It has a yellow hue and is visible to the naked eye with an [[apparent visual magnitude]] of 4.11.<ref name=Anderson2012/> The distance to this star is approximately 390&nbsp;[[light year]]s based on [[stellar parallax|parallax]], but it is drifting closer with a [[radial velocity]] of −3&nbsp;km/s.<ref name=Anderson2012/> It has an [[absolute magnitude]] of −1.51.<ref name=Cardini2005/>

This is an aging [[bright giant]] star with a [[stellar classification]] of G0II.<ref name=Tetzlaff2011/> It is a candidate [[Cepheid variable]],<ref name=Samus2017/> but [[Hipparcos]] photometry found its brightness to be constant.<ref name=adelman2001/> The star has expanded to 22<ref name=GaiaDR2/> times the [[radius of the Sun]] and is radiating 283<ref name=GaiaDR2/> times the [[Sun's luminosity]] from its enlarged [[photosphere]] at an [[effective temperature]] of 5,051&nbsp;K.<ref name=GaiaDR2/> It has a magnitude 13.0 [[visual companion]] at an [[angular separation]] of {{Val|24.3|ul=arcsecond}} along a [[position angle]] of 313° relative to the brighter component, as of 2000.<ref name=WDSC2014/>

HD 102350 is listed in the [[Washington Double Star Catalog]] as having a 13th magnitude companion about {{val|25|ul="}} away,<ref name=wds/> but it is a distant background object unrelated to HD 102350.<ref name=dr2b/><ref name=Eggleton2008/>

==References== {{Reflist|refs=

<ref name=GaiaDR2>{{Cite Gaia DR2|5334994490069004672}}</ref>

<ref name=dr2b>{{cite Gaia DR2|5334994490033481344}}</ref>

<ref name=SIMBAD>{{cite simbad | title=HD 102350 | access-date=2018-07-27}}</ref>

<ref name=constellation>{{cite constellation|HD 102350}}</ref>

<ref name=Samus2017>{{cite journal | display-authors=1 | last1=Samus | first1=N. N. | last2=Kazarovets | first2=E. V. | last3=Durlevich | first3=O. V. | last4=Kireeva | first4=N. N. | last5=Pastukhova | first5=E. N. | title=General Catalogue of Variable Stars | version=5.1 | journal=Astronomy Reports | year=2017 | volume=61 | issue=1 | pages=80–88 | bibcode=2017ARep...61...80S | doi=10.1134/S1063772917010085 | s2cid=125853869 }}</ref>

<ref name=Anderson2012>{{cite journal | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | arxiv=1108.4971 | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | s2cid=119257644 }}</ref>

<ref name=Cardini2005>{{cite journal | title=Mg II chromospheric radiative loss rates in cool active and quiet stars | last1=Cardini | first1=D. | journal=Astronomy and Astrophysics | volume=430 | pages=303–311 | date=January 2005 | doi=10.1051/0004-6361:20041440 | bibcode=2005A&A...430..303C | arxiv=astro-ph/0409683 | s2cid=12136256 }}</ref>

<ref name=Eggleton2008>{{cite journal | 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 }}</ref>

<ref name=Houk1979>{{cite book | last1=Houk | first1=Nancy | title=Michigan catalogue of two-dimensional spectral types for the HD stars | location=Ann Arbor, Michigan | publisher=Department of Astronomy, University of Michigan | volume=1 |year=1979 | bibcode=1978mcts.book.....H }}</ref>

<ref name=vanLeeuwen2007>{{cite journal | title=Validation of the new Hipparcos reduction | last=van Leeuwen | first=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | date=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | s2cid=18759600 }}</ref>

<ref name=Tetzlaff2011>{{cite journal | title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun | journal=Monthly Notices of the Royal Astronomical Society | display-authors=1 | last1=Tetzlaff | first1=N. | last2=Neuhäuser | first2=R. | last3=Hohle | first3=M. M. | volume=410 | pages=190–200 | year=2011 | issue=1 | bibcode=2011MNRAS.410..190T | arxiv=1007.4883 | doi=10.1111/j.1365-2966.2010.17434.x | doi-access=free | s2cid=118629873 }}</ref>

<ref name=WDSC2014>{{cite journal | display-authors=1 | last1=Mason | first1=B. D. | last2=Wycoff | first2=G. L. | last3=Hartkopf | first3=W. I. | last4=Douglass | first4=G. G. | last5=Worley | first5=C. E. | title=The Washington Visual Double Star Catalog | year=2014 | bibcode=2001AJ....122.3466M | doi=10.1086/323920 | volume=122 | journal=The Astronomical Journal | issue=6 | pages=3466–3471| doi-access=free }}</ref>

<ref name=adelman2001>{{cite journal|bibcode=2001A&A...367..297A|title=Research Note Hipparcos photometry: The least variable stars|journal=Astronomy and Astrophysics|volume=367|pages=297–298|last1=Adelman|first1=S. J.|year=2001|doi=10.1051/0004-6361:20000567|doi-access=free}}</ref>

<ref name=wds>{{cite journal|bibcode=2001AJ....122.3466M|title=The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog|journal=The Astronomical Journal|volume=122|issue=6|pages=3466–3471|last1=Mason|first1=Brian D.|last2=Wycoff|first2=Gary L.|last3=Hartkopf|first3=William I.|last4=Douglass|first4=Geoffrey G.|last5=Worley|first5=Charles E.|year=2001|doi=10.1086/323920|doi-access=free}}</ref>

}}

{{Stars of Centaurus}}

{{DEFAULTSORT:HD 102350}} [[Category:G-type bright giants]] [[Category:Suspected variables]] [[Category:Centaurus]] [[Category:Durchmusterung objects|CD-60 03741]] [[Category:Henry Draper Catalogue objects|102350]] [[Category:Hipparcos objects|057439]] [[Category:Bright Star Catalogue objects|4522]]