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My Geminorum - Versionsgeschichte
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<p><b>Neue Seite</b></p><div>{{Infobox Stern<br />
| Name = μ Geminorum<br />
| Bild = Ic443 wide.jpg<br />
| Bildtext = Links μ Geminorum, in der Mitte der [[Supernovaüberrest]] [[IC 443]], rechts [[Eta Geminorum|η Geminorum]]<br />
| KarteDir = ul<br />
| KarteX = 1780<br />
| KarteY = 1030<br />
| Kartendaten = <br />
| Kartentext = <br />
| Sternbild = Gem<br />
| Rek = 06/22/57.627<br />
| Dek = +/22/30/48.900<br />
| Size = <br />
| Visuell = 2.87 (2.75 bis 3.02)<br />
| magU = 6.37<br />
| magB = 4.51<br />
| magV = 2.87<br />
| magR = 1.30<br />
| magI = −0.08<br />
| magJ = −0.78<br />
| magH = −1.68<br />
| magK = −1.49<br />
| magS = <br />
| magG = <br />
| Gr = 2.87<br />
| Spektralklasse = M3 III<br />
| B-V-Index = +1,64<br />
| U-B-Index = +1,86<br />
| R-I-Index = +1,38<br />
| Variabel = [[Halbregelmäßig veränderlicher Stern|SR]]<ref name="VSX_Entry" /><br />
| V-Radial = (54,38 ± 0,24)<br />
| Parallaxe = (14,08 ± 0,71)<br />
| LJ = (230 ± 15)<br />
| PC = 71<br />
| Absolut-vis = −1,4<br />
| V-RA = (+56,39 ± 0,85)<br />
| V-DE = (−110,03 ± 0,51)<br />
| Masse = 2,1<br />
| Radius = <br />
| Leuchtkraft = 2750<br />
| Temperatur = 3600<br />
| Metallizität = +0,11<br />
| Rotation = <br />
| Alter = <br />
| Bayer = μ Geminorum<br />
| Flamsteed = 13 Geminorum<br />
| BD = +22° 1304<br />
| HR = 2286<br />
| HD = 44478<br />
| HIP = 30343<br />
| SAO = 78297<br />
| TYC = 1878-1429-1<br />
| 2MASS = J06225762+2230490<br />
| Weitere = [[FK5]]&nbsp;241<br />
<!-- Quellen -->| RekDekRef = <ref name="Simbad">{{Internetquelle |url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=mu+gem&submit=SIMBAD+search |titel=mu Gem |werk=[[SIMBAD]].u-strasbg.fr |hrsg=[[Centre de Données astronomiques de Strasbourg]] |abruf=2025-04-17}}</ref><br />
| VisRef = <ref name="Simbad" /><ref name="VSX_Entry" /><br />
| SpekRef = <ref name="VSX_Entry">{{Internetquelle |url=https://www.aavso.org/vsx/index.php?view=detail.top&oid=14667 |titel=mu. Gem |werk=aavso.org |abruf=2025-04-17}}</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="Schiavon2007">{{cite journal |first1=Ricardo P. |last1=Schiavon |title=Population Synthesis in the Blue. IV. Accurate Model Predictions for Lick Indices and UBV Colors in Single Stellar Populations |journal=The Astrophysical Journal Supplement Series |volume=171 |issue=1 |date=2007-07 |pages=146–205 |doi=10.1086/511753 |arxiv=astro-ph/0611464 |bibcode=2007ApJS..171..146S |language=en}}</ref><br />
| VRef = <ref name="Simbad" /><br />
| MasseRef = <ref name="tsuji2007">{{cite journal |first1=Takashi |last1=Tsuji |title=Isotopic abundances of Carbon and Oxygen in Oxygen-rich giant stars (Convection in Astrophysics, Proceedings of IAU Symposium #239 held 21-25 August, 2006 in Prague, Czech Republic) |journal=n/a |date=2007-05 |pages=307–310 |doi=10.1017/S1743921307000622 |arxiv=astro-ph/0610180 |bibcode=2007IAUS..239..307T |language=en}}</ref><br />
| RadiusRef = <br />
| LkRef = <ref name="aaa352_495">{{cite journal |first1=Sushma V. |last1=Mallik |title=Lithium abundance and mass |journal=Astronomy and Astrophysics |volume=352 |date=1999-12 |pages=495–507 |bibcode=1999A&A...352..495M |language=en}}</ref><br />
| TempRef = <ref name="Schiavon2007" /><br />
| MetallRef = <ref name="aaa352_495" /><br />
| RotRef = <br />
| AlterRef = <br />
}}<br />
<br />
'''My Geminorum''' (kurz ''μ Gem'', historischer Eigenname '''Tejat Posterior''') ist ein etwa 230 [[Lichtjahr]]e entfernter [[Roter Riese]] des [[Spektraltyp]]s M0. My&nbsp;Geminorum ist ein [[halbregelmäßig veränderlicher Stern]], dessen [[scheinbare Helligkeit]] zwischen 2,75&nbsp;mag und 3,02&nbsp;mag schwankt.<ref name="VSX_Entry" /><br />
<br />
My Geminorum kann als ekliptiknaher Stern vom [[Mond]] und (sehr selten) von [[Planet]]en bedeckt werden.<br />
<br />
== Weblinks ==<br />
* {{Internetquelle |url=https://www.universeguide.com/star/tejat |titel=Tejat Star Facts (Mu Geminorum) |werk=universeguide.com |datum=2025-02-04 |abruf=2025-04-17}}<br />
* {{Internetquelle |autor=Jim Kaler |url=http://stars.astro.illinois.edu/sow/tejat.html |titel=TEJAT (Mu Geminorum) |werk=stars.astro.illinois.edu |abruf=2025-04-17}}<br />
<br />
== Einzelnachweise ==<br />
<references /><br />
<br />
[[Kategorie:Roter Riese (Typ M)]]<br />
[[Kategorie:Veränderlicher Stern]]</div>
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