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{{Infobox Stern
| Name = R Sculptoris
| Bild = Curious spiral spotted by ALMA around red giant star R Sculptoris (data visualisation).jpg
| Bildtext = Spiralstruktur um R Sculptoris, beobachtet im Millimeterwellenlängenbereich mit [[Atacama Large Millimeter Array|ALMA]].
| Sternbild = Scl
| Rek = 01/26/58.095
| Dek = -/32/32/35.438
| Size =
| Visuell = 5,72
| Gr = 5.72
| Spektralklasse = C6,5ea(Np)
| B-V-Index = (3.87)
| U-B-Index = (7.67)
| R-I-Index = (1.39)
| Variabel = [[Halbregelmäßig veränderlicher Stern|SRB]]<ref name="VSX_Entry" />
| V-Radial = (−5.4 ± 2.2)
| Parallaxe = (2.27 ± 0.15)
| LJ = (1440 ± 100)
| PC = (440)
| Absolut-vis = (−3.71)
| V-RA = (−9.78 ± 0.18)
| V-DE = (−30.90 ± 0.14)
| Masse = (1.3 ± 0.7)
| Radius = (355 ± 55)
| Leuchtkraft = (5500 ± 3000)
| Temperatur = (2640 ± 80)
| Metallizität =
| Rotation =
| Alter =
| CD = −33° 525
| HR = 423
| HD = 8879
| SAO = 193122
| TYC = 7002/1357/1
| HIP = 6759
| 2MASS = J01265799-3232358
| Weitere = IRAS 01246−3248

| RekDekRef = <ref name="Simbad">{{Internetquelle |titel=R Scl |werk=[[SIMBAD]] |hrsg=[[Centre de Données astronomiques de Strasbourg]] |url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=r+scl&submit=SIMBAD+search |zugriff=2018-09-04}}</ref>
| VisRef = <ref name="Simbad" />
| SpekRef = <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><ref name="VSX_Entry">{{Internetquelle |titel=R Scl |werk=VSX |hrsg=AAVSO |url=https://www.aavso.org/vsx/index.php?view=detail.top&oid=34010 |zugriff=2018-09-04}}</ref>
| BVRef = <ref name="Simbad" />
| UBRef = <ref name="Simbad" />
| RIRef = <ref name="Simbad" />
| VradRef = <ref name="Simbad" />
| ParallaxeRef = <ref name="Simbad" />
| LJPCRef =
| AbsRef = <ref name="guandalini">{{cite journal | bibcode=2013A&A...555A.120G |title=Luminosities of carbon-rich asymptotic giant branch stars in the Milky Way |author = Guandalini, R. |last2 = Cristallo, S. |journal = Astronomy & Astrophysics |volume = 555 | id = A120 | pages = 7 |date=2013|arxiv = 1305.4203 |doi = 10.1051/0004-6361/201321225 }}</ref>
| VRef = <ref name="Simbad" />
| MasseRef = <ref name="wittkowski" />
| RadiusRef = <ref name="wittkowski">{{cite journal|bibcode=2017A&A...601A...3W|arxiv=1702.02574|title=Aperture synthesis imaging of the carbon AGB star R Sculptoris. Detection of a complex structure and a dominating spot on the stellar disk|journal=[[Astronomy & Astrophysics]]|volume=601|pages=A3|last1=Wittkowski|first1=M|last2=Hofmann|first2=K.-H|last3=Höfner|first3=S|last4=Le Bouquin|first4=J. B|last5=Nowotny|first5=W|last6=Paladini|first6=C|last7=Young|first7=J|last8=Berger|first8=J.-P|last9=Brunner|first9=M|last10=De Gregorio-Monsalvo|first10=I|last11=Eriksson|first11=K|last12=Hron|first12=J|last13=Humphreys|first13=E. M. L|last14=Lindqvist|first14=M|last15=Maercker|first15=M|last16=Mohamed|first16=S|last17=Olofsson|first17=H|last18=Ramstedt|first18=S|last19=Weigelt|first19=G|year=2017|doi=10.1051/0004-6361/201630214}}</ref>
| LkRef = <ref name="wittkowski" />
| TempRef = <ref name="wittkowski" />
| MetallRef =
| RotRef =
| AlterRef =
}}

'''R Sculptoris''' (''R Scl'') ist ein [[Roter Riese|roter Riesenstern]] mit 355-fachen Sonnendurchmesser in einer Entfernung von rund 1500 Lichtjahren zur Sonne.<ref name="eso1239a">{{cite web|title=Curious spiral spotted by ALMA around red giant star R Sculptoris (data visualisation)|url=https://www.eso.org/public/images/eso1239a/|work=Image Archive|publisher=ESO|accessdate=2012-10-11}}</ref><ref>[[Sterne und Weltraum|SuW]] 09.2017 S. 22ff</ref> entfernt im [[Bildhauer (Sternbild)|Sternbild Sculptor]]. Beobachtungen<ref>{{cite web|title=Unexpectedly large mass loss during the thermal pulse cycle of the red giant R Sculptoris|url=https://www.eso.org/public/archives/releases/sciencepapers/eso1239/eso1239a.pdf|work=Research Paper|accessdate=2012-10-11|format=PDF; 1,0 MB}}</ref> zeigen eine Spiralstruktur, die diesen Stern umgibt.

Der Stern ist [[Pulsationsveränderlicher Stern|pulsationsveränderlich]] und gehört zum Typ [[Halbregelmäßig veränderlicher Stern|SRb]] mit einer Periode von 370 Tagen.<ref name="VSX_Entry" />

== Siehe auch ==
* [[AGB-Stern]]
* [[Kohlenstoffstern]]

== Weblinks ==
{{Commonscat}}

== Einzelnachweise ==
<references />

[[Kategorie:Halbregelmäßig veränderlicher Stern]]
[[Kategorie:Roter Riese (Typ C)]]

R Sculptoris - Versionsgeschichte

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