{{Short description|Star in the constellation Centaurus}} {{About-distinguish|u Centauri|Upsilon Centauri{{!}}υ Centauri}} {{Starbox begin |name=HD 108541 (u Centauri)}} {{Starbox observe |constell=[[Centaurus (constellation)|Centaurus]]<ref name=xhip>{{cite XHIP|60855}}</ref> |epoch=[[J2000]] | ra = {{RA|12|28|22.46490}}<ref name="van Leeuwen2007">{{cite journal | title=Validation of the new Hipparcos reduction | last1=van Leeuwen | first1=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> | dec = {{DEC|−39|02|28.2168}}<ref name="van Leeuwen2007"/> |appmag_v=5.448<ref name="SIMBAD">{{cite simbad|title=* u Cen|access-date=8 February 2017}}</ref> }} {{Starbox character |type=[[main sequence]]<ref name=zorec2012>{{cite journal |bibcode=2012A&A...537A.120Z |title=Rotational velocities of A-type stars. IV. Evolution of rotational velocities |last1=Zorec |first1=J. |last2=Royer |first2=F. |journal=Astronomy and Astrophysics |date=2012 |volume=537 |pages=A120 |doi=10.1051/0004-6361/201117691 |arxiv=1201.2052 }}</ref> |class=B8/9V<ref name="SIMBAD"/> |b-v=−0.08<ref name=UBV>{{cite journal|author1=Corben, P. M.|title=Photoelectric magnitudes and colours for bright southern stars|journal=Monthly Notes of the Astron. Soc. Southern Africa|volume=25|page=44|date=1966|bibcode=1966MNSSA..25...44C}}</ref> }} {{Starbox astrometry |radial_v=5.00<ref name=RV>{{cite journal|title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system|author=Gontcharov, G. A.|date=2006|journal=Astronomy Letters|volume=32|issue=11|pages=759–771|bibcode=2006AstL...32..759G|doi=10.1134/S1063773706110065|arxiv=1606.08053|s2cid=119231169}}</ref> |prop_mo_ra=−28.01<ref name="van Leeuwen2007"/> |prop_mo_dec=−13.76<ref name="van Leeuwen2007"/> |parallax=7.47 |p_error=0.28 |parallax_footnote=<ref name="van Leeuwen2007"/> |absmag_v=−-0.18<ref name=xhip/> }} {{Starbox detail |mass=3.1<ref name=zorec2012/> |luminosity=150<ref name=zorec2012/> |temperature=10,691<ref name=zorec2012/> |radius=3.6<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> |gravity=3.77<ref name=tic/> |rotational_velocity=191<ref name=zorec2012/> |age_myr=253<ref name=gonycharov2012>{{cite journal |bibcode=2012AstL...38..771G |title=Dependence of kinematics on the age of stars in the solar neighborhood |last1=Gontcharov |first1=G. A. |journal=Astronomy Letters |date=2012 |volume=38 |issue=12 |page=771 |doi=10.1134/S1063773712120031 |arxiv=1606.08814 }}</ref> }} {{Starbox catalog |names=[[Bayer designation|u]] Cen, [[Cordoba Durchmusterung|CD]]−34°7753, [[Henry Draper Catalogue|HD]] 108541, [[Hipparcos catalogue|HIP]] 60855, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 203508, [[Bright Star Catalogue|HR]] 4748, [[Boss General Catalogue|GC]] 17001<ref name="SIMBAD" />}} {{Starbox reference |Simbad=HD+108541}} {{Starbox end}}
'''HD 108541''', also known by its [[Bayer designation]] '''u Centauri''' is a [[star]] located in the [[constellation]] [[Centaurus]], It is also known as '''HR 4748'''. The [[apparent magnitude]] of the [[star]] is about 5.4, meaning it is only visible to the naked eye under [[Bortle scale|excellent viewing conditions]]. Its distance is about 440 [[light-year]]s (140 [[parsec]]s), based on its [[parallax]] measured by the [[Hipparcos]] [[astrometry]] satellite.<ref name="van Leeuwen2007"/>
The [[spectral type]] of HD 108541 is B8/9V, meaning it is a late [[B-type main sequence star]]. These types of stars are a few times more massive than the [[Sun]], and have [[effective temperature]]s of about 10,000 to 30,000 [[Kelvin|K]]. HD 108541 is just over 3 times more massive than the Sun and has a temperature of about 11,000 K.<ref name=zorec2012/>
== References == {{reflist}}
{{Stars of Centaurus}}
{{DEFAULTSORT:HD 108541}} [[Category:Centaurus]] [[Category:B-type main-sequence stars]] [[Category:Bayer objects|Centauri, u]] [[Category:Henry Draper Catalogue objects|108541]] [[Category:Bright Star Catalogue objects|4748]] [[Category:Hipparcos objects|060855]] [[Category:Durchmusterung objects]]