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Sigma Librae - Versionsgeschichte
2026-05-28T00:46:14Z
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2023-02-27T09:35:52Z
<p><span class="autocomment">Einzelnachweise</span></p>
<p><b>Neue Seite</b></p><div>{{Infobox Stern<br />
| Name = σ Librae<br />
| Bild = <br />
| Bildtext = <br />
| KarteDir = ol<br />
| KarteX = 200<br />
| KarteY = 250<br />
| Kartendaten = <br />
| Kartentext = <br />
| Sternbild = Lib<br />
| Rek = 15/04/04.218<br />
| Dek = -/25/16/55.154<br />
| Size = <br />
| Caption = σ Librae<br />
| Objekt = Sigma Librae<br />
| Visuell = 3,21 (3,2 bis 3,46)<br />
| Gr = 3.21<br />
| Spektralklasse = M3.5 IIIa<br />
| B-V-Index = (1,70)<br />
| U-B-Index = (1,95)<br />
| R-I-Index = (1,27)<br />
| Variabel = [[Halbregelmäßig veränderlicher Stern|SRB]]<ref name="VSX_Entry" /><br />
| V-Radial = (−3,9 ± 0,7)<br />
| Parallaxe = (7,92 ± 0,79)<br />
| LJ = (410 ± 20)<br />
| PC = (126)<br />
| Absolut-vis = (−1,5)<br />
| V-RA = (−75,91 ± 1,33)<br />
| V-DE = (−38,54 ± 1,13)<br />
| Masse = (2,2 ± 0,5)<br />
| Radius = (108)<br />
| Leuchtkraft = (1480)<br />
| Temperatur = (3600)<br />
| Metallizität = (0,00)<br />
| Rotation = <br />
| Alter = <br />
| Bayer = σ&nbsp;Librae<br />
| Flamsteed = 20&nbsp;Librae<br />
| CD = −24°&nbsp;11834<br />
| GJ = 9508<br />
| HR = 5603<br />
| HD = 133216<br />
| SAO = 183139<br />
| TYC = 6752-1455-1<br />
| HIP = 73714<br />
| 2MASS = J15040422-2516549<br />
| Weitere = Brachium, [[FK5]]&nbsp;556<br />
| RekDekRef = <ref name="Simbad">{{Internetquelle| titel=sig Lib | werk=[[SIMBAD]] | hrsg=[[Centre de Données astronomiques de Strasbourg]] | url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=sig+lib&submit=SIMBAD+search | zugriff=2018-08-27}}</ref><br />
| VisRef = <ref name="Simbad" /><ref name="VSX_Entry" /><br />
| SpekRef = <ref name="VSX_Entry">{{Internetquelle| titel=sig Lib| werk=VSX | hrsg=AAVSO | url=https://www.aavso.org/vsx/index.php?view=detail.top&oid=17593 | zugriff=2018-08-27}}</ref><br />
| BVRef = <ref name="Simbad" /><br />
| UBRef = <ref name="Simbad" /><br />
| RIRef = <ref name="Simbad" /><br />
| VradRef = <ref name="Simbad" /><br />
| ParallaxeRef = <ref name="Simbad" /><br />
| LJPCRef = <br />
| AbsRef = <ref name="mnras355_2_601">{{cite journal | last1=Yeşilyaprak | first1=C. | last2=Aslan | first2=Z. | title=Period-luminosity relation for M-type semiregular variables from Hipparcos parallaxes | journal=[[Monthly Notices of the Royal Astronomical Society]] | volume=355 | issue=2 | pages=601–607 |date=2004-12 | doi=10.1111/j.1365-2966.2004.08344.x | bibcode=2004MNRAS.355..601Y}}</ref><br />
| VRef = <ref name="Simbad" /><br />
| MasseRef = <ref name="tsuji2008">{{cite journal|bibcode=2008A&A...489.1271T|arxiv=0807.4387|title=Cool luminous stars: The hybrid nature of their infrared spectra|journal=[[Astronomy & Astrophysics]] |volume=489|issue=3|pages=1271|last1=Tsuji|first1=T|year=2008|doi=10.1051/0004-6361:200809869}}</ref><br />
| RadiusRef = <ref name="cruzalebes">{{cite journal|bibcode=2013MNRAS.434..437C|arxiv=1306.3288|title=Fundamental parameters of 16 late-type stars derived from their angular diameter measured with VLTI/AMBER|journal=Monthly Notices of the Royal Astronomical Society|volume=434|pages=437|last1=Cruzalèbes|first1=P|last2=Jorissen|first2=A|last3=Rabbia|first3=Y|last4=Sacuto|first4=S|last5=Chiavassa|first5=A|last6=Pasquato|first6=E|last7=Plez|first7=B|last8=Eriksson|first8=K|last9=Spang|first9=A|last10=Chesneau|first10=O|year=2013|doi=10.1093/mnras/stt1037}}</ref><br />
| LkRef = <ref name="cruzalebes" /><br />
| TempRef = <ref name="tsuji2008" /><ref name="aaa533_A107" /><br />
| MetallRef = <ref name="aaa533_A107">{{cite journal | last1=Dehaes | first1=S. | last2=Bauwens | first2=E. | last3=Decin | first3=L. | last4=Eriksson | first4=K. | last5=Raskin | first5=G. | last6=Butler | first6=B. | last7=Dowell | first7=C. D. | last8=Ali | first8=B. | last9=Blommaert | first9=J. A. D. L. | title=Structure of the outer layers of cool standard stars | journal=Astronomy & Astrophysics | volume=533 | pages=A107 |date=2011-09 | doi=10.1051/0004-6361/200912442 | bibcode=2011A&A...533A.107D |arxiv = 0905.1240 }}</ref><br />
| RotRef = <br />
| AlterRef = <br />
}}<br />
<br />
'''σ Librae''' ('''Sigma Librae''', kurz ''σ Lib'') ist ein [[Roter Riese]] auf dem [[AGB-Stern|AGB-Entwicklungsweg]]. Er hat eine scheinbare Helligkeit von 3,2&nbsp;mag, ist etwa 400 [[Lichtjahr]]e entfernt und befindet sich im Sternbild [[Waage (Sternbild)|Waage]].<br />
<br />
Der Stern trägt die historischen Eigennamen ''Brachium'', ''Cornu'', ''Zubenalgubi''. Er trug ursprünglich die [[Bayer-Bezeichnung]] ''γ Scorpii'' (Gamma Scorpii).<br />
<br />
== Einzelnachweise ==<br />
<references /><br />
<br />
[[Kategorie:Roter Riese]]<br />
[[Kategorie:Halbregelmäßig veränderlicher Stern]]</div>
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