Spica: Perbedaan antara revisi

'''Spica''' (α Vir, α Virginis, [[alpha (letter)|Alpha]] Virginis) adalah bintang yang paling terang pada [[rasi bintang]] [[Virgo (constellation)|Virgo]], dan bintang terterang ke-15 yang terlihat pada malam hari. Bintang ini memiliki jarak sekitar 260 [[tahun cahaya]] dari [[Bumi]]. BintagBintang ini juga dikenal sebagai ''raksasa biru'', dan merupakan [[variableBintang star|variablevariabel]] dari Tipe [[Beta Cephei variable|Beta Cephei type]].

Spica merupakan bintang yang paling panas dan umumnya berwaranberwarna biru.

<ref name=gcsrv53>{{cite book | last=Wilson | first=Ralph Elmer | year=1953 | title=General Catalogue of Stellar Radial Velocities | publisher=Carnegie Institution of Washington | location=Washington | bibcode=1953QB901.W495..... }}</ref>

<ref name=hipparcos>{{cite journal | author=Perryman, M. A. C. | coauthors=''et al.'' | title=The HIPPARCOS Catalogue | journal=[[Astronomy & Astrophysics]] | volume=323 | pages=L49–L52 | month=April | year=1997 | bibcode=1997A&A...323L..49P | last2=Lindegren | last3=Kovalevsky | last4=Hoeg | last5=Bastian | last6=Bernacca | last7=Crézé | last8=Donati | last9=Grenon }}</ref>

<ref name=simbad>{{cite web | title=V* alf Vir -- Variable Star of beta Cep type | work=[[SIMBAD]] | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=alf+Vir | accessdate=2010-04-13 }}</ref>

<ref name=evans98>{{cite book | last=Evans | first=James | title=The History and Practice of Ancient Astronomy | url=https://archive.org/details/historypracticeo0000evan|publisher=Oxford University Press | year=1998 | pages=[https://archive.org/details/historypracticeo0000evan/page/259 259]| isbn=0195095391 }}</ref>

<ref name=allen03>{{cite book | last=Allen | first=Richard Hinckley | title=Star Names and Their Meanings | publisher=Kessinger Publishing | year=2003 | pages=468 | isbn=0766140288}}</ref>

<ref name=jrasc37_4>{{cite journal | last=Rufus | first=W. Carl | title=Copernicus, Polish Astronomer, 1473–1543 | journal=[[Journal of the Royal Astronomical Society of Canada]] | volume=37 | issue=4 | pages=134 | month=April | year=1943 | bibcode=1943JRASC..37..129R }}</ref>

<ref name=moesgaard73>{{cite conference | first=Kristian P. | last=Moesgaard | title=Copernican influence on Tycho Brahe | editors=Jerzy Dobrzycki | booktitle=The reception of Copernicus' heliocentric theory: proceedings of a symposium organized by the Nicolas Copernicus Committee of the International Union of the History and Philosophy of Science | location=Toruń, Poland | year=1973 | publisher=Studia Copernicana, Springer | isbn=9027703116 | url=http://books.google.com/books?id=tAWp34_GYLAC&pg=PA35&dq=copernicus+spica#v=onepage&q=copernicus%20spica&f=false }}</ref>

<ref name=breit10>{{cite web | first=Derek C. | last=Breit | date=March 12, 2010 | title=Diary of Astronomical Phenomena 2010 | work=Poyntsource.com | url=http://www.poyntsource.com/New/Diary.htm | accessdate=2010-04-13 }}</ref>

<ref name=aj76>{{cite journal | author=Pfleiderer, J.; Mayer, U. | title=Near-ultraviolet surface photometry of the southern Milky Way | journal=[[Astronomical Journal]] | volume=76 | page=691 | month=October | year=1971 | doi=10.1086/111186 | bibcode=1971AJ.....76..691P }}</ref>

<ref name=apj704_1>{{cite journal | author=Harrington, David; Koenigsberger, Gloria; Moreno, Edmundo; Kuhn, Jeffrey | title=Line-profile Variability from Tidal Flows in Alpha Virginis (Spica) | journal=The Astrophysical Journal | volume=704 | issue=1 | pages=813–830 | month=October | year=2009 | doi=10.1088/0004-637X/704/1/813 | bibcode=2009ApJ...704..813H }}</ref>

<ref name=mnras151>{{cite journal | title=A study of alpha Virginis with an intensity interferometer | author=Herbison-Evans, D.; Hanbury Brown, R.; Davis, J.; Allen, L. R. | journal=[[Monthly Notices of the Royal Astronomical Society]] | volume=151 | pages=161−176 | year=1971 | bibcode=1971MNRAS.151..161H | last2=Hanbury Brown | last3=Davis | last4=Allen }}</ref>

<ref name=bass33>{{cite journal | title=Spectroscopy of the temporal variations of α Vir | author=Riddle, R. L.; Bagnuolo, W. G.; Gies, D. R. | journal=[[Bulletin of the American Astronomical Society]] | volume=33 | page=1312 | month=December | year=2001 | bibcode=2001AAS...199.0613R | last2=Bagnuolo | last3=Gies }}</ref>

<ref name=aass125_1>{{cite journal | last=Beech | first=M. | title=The ellipsoidal variables. III - Circularization and synchronization | journal=[[Astrophysics and Space Science]] | volume=125 | issue=1 | pages=69–75 | month=August | year=1986 | doi=10.1007/BF00643972 | bibcode=1986Ap&SS.125...69B }}</ref>

<ref name=apj295>{{cite journal | title=The ellipsoidal variable stars | last=Morris | first=S. L. | journal=Astrophysical Journal, Part 1 | volume=295 | pages=143–152 | month=August | year=1985 | doi=10.1086/163359 | bibcode=1985ApJ...295..143M }}</ref>

<ref name=apj479>{{cite journal | author=Gies, Douglas R.; Bagnuolo, William G., Jr.; Penny, Laura R. | title=Photospheric Heating in Colliding-Wind Binaries | journal=Astrophysical Journal | volume=479 | page=408 | month=April | year=1997 | doi=10.1086/303848 | bibcode=1997ApJ...479..408G | last2=Bagnuolo }}</ref>

<ref name=kaler>{{cite web | first=Jim | last=Kaler | title=Spica | work=Stars | url=http://stars.astro.illinois.edu/sow/spica.html | accessdate=2010-04-15 }}</ref>

<ref name=aaa483_3>{{cite journal | author=Schnerr, R. S. | coauthors=''et al.'' | title=Magnetic field measurements and wind-line variability of OB-type stars | journal=Astronomy and Astrophysics | volume=483 | issue=3 | pages=857–867 | month=June | year=2008 | doi=10.1051/0004-6361:20077740 | bibcode=2008A&A...483..857S | url=http://remote.science.uva.nl/~rschnerr/papers/OBstars.pdf | accessdate=2010-04-16}}{{Pranala mati|date=September 2021 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>