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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">WR 31a</span></h1>
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</style><div id="coordinates" class="coordinates"><a class="external text" href="https://geohack.toolforge.org/skyhack.php?ra=10.899882777778&de=-60.445655555556&size=0.0033333333333333&name=WR+31a&object=WR%2031a&_globe:=">Datenbanklinks zu WR 31a</a></div>
<table aria-label="Kenndaten des Sterns" class="wikitable infobox hintergrundfarbe-basis float-right ibtable">
<tbody><tr>
<th colspan="2" class="ibheader"><a href="Stern" title="Stern">Stern</a><br> WR 31a
</th></tr>
<tr>
<td colspan="2" class="notheme ibimage"><span typeof="mw:File"></span>
</td></tr>
<tr>
<td colspan="2" class="ibimgtxt">Aufnahme des <a href="Hubble-Weltraumteleskop" title="Hubble-Weltraumteleskop">Hubble-Weltraumteleskops</a>
</td></tr>
<tr>
<td colspan="2" class="ibmap notheme"><div class="notheme" style="position: relative; width: 330px; margin: auto; float: ; clear: ; background:#ffffff;"><div style="position: absolute; left: 48px; top: 158px; padding: 0;"><span class="mw-valign-top" typeof="mw:File"></span></div><span typeof="mw:File"></span></div>
</td></tr>
<tr style="display:none;">
<td colspan="2" class="ibmaptxt notheme">
</td></tr>
<tr>
<td colspan="2" style="text-align:center;"><a rel="nofollow" class="external text" href="https://aladin.cds.unistra.fr/AladinLite/?target=10%2053%2059.578%20%2D60%2026%2044.36&fov=0.005&survey=CDS%2FP%2FDSS2%2Fcolor">AladinLite</a>
</td></tr>
<tr>
<th colspan="2" class="ibheader">Beobachtungsdaten<br><small><a href="%C3%84quinoktium" title="Äquinoktium">Äquinoktium</a>: <a href="Epoche_(Astronomie)#Standardepochen" title="Epoche (Astronomie)">J2000.0</a>, <a href="Epoche_(Astronomie)" title="Epoche (Astronomie)">Epoche</a>: J2000.0</small>
</th></tr>
<tr>
<td><a href="Sternbild" title="Sternbild">Sternbild</a>
</td>
<td class="ibnowrap"><a href="Kiel_des_Schiffs" title="Kiel des Schiffs">Kiel des Schiffs</a>
</td></tr>
<tr>
<td><a href="Rektaszension" title="Rektaszension">Rektaszension</a>
</td>
<td class="ibnowrap">10h 53m 59,578s <sup id="cite_ref-Simbad_1-0" class="reference"><a href="#cite_note-Simbad-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td><a href="Deklination_(Astronomie)" title="Deklination (Astronomie)">Deklination</a>
</td>
<td class="ibnowrap">−60° 26′ 44,36″ <sup id="cite_ref-Simbad_1-0" class="reference"><a href="#cite_note-Simbad-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr style="display:none;">
<td><a href="Scheinbare_Gr%C3%B6%C3%9Fe" title="Scheinbare Größe">Winkelausdehnung</a>
</td>
<td class="ibnowrap">{{{Winkel}}} <a href="Winkelsekunde" title="Winkelsekunde">mas</a>
</td></tr>
<tr style="display:none;">
<td>Bekannte <a href="Exoplanet" title="Exoplanet">Exoplaneten</a>
</td>
<td class="ibnowrap">
</td></tr>
<tr>
<th colspan="2" class="ibheader">Helligkeiten
</th></tr>
<tr>
<td><a href="Scheinbare_Helligkeit" title="Scheinbare Helligkeit">Scheinbare Helligkeit</a>
</td>
<td class="ibnowrap">10,85 ± 0,08 mag<sup id="cite_ref-Simbad_1-1" class="reference"><a href="#cite_note-Simbad-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr style="display:none;">
<td><a href="UBV-System" title="UBV-System">Helligkeit (U-Band)</a>
</td>
<td class="ibnowrap">{{{magU}}} mag
</td></tr>
<tr style="display:none;">
<td><a href="UBV-System" title="UBV-System">Helligkeit (B-Band)</a>
</td>
<td class="ibnowrap">{{{magB}}} mag
</td></tr>
<tr style="display:none;">
<td><a href="UBV-System" title="UBV-System">Helligkeit (V-Band)</a>
</td>
<td class="ibnowrap">{{{magV}}} mag
</td></tr>
<tr style="display:none;">
<td><a href="UBV-System#Erweiterungen" title="UBV-System">Helligkeit (R-Band)</a>
</td>
<td class="ibnowrap">{{{magR}}} mag
</td></tr>
<tr style="display:none;">
<td><a href="UBV-System#Erweiterungen" title="UBV-System">Helligkeit (I-Band)</a>
</td>
<td class="ibnowrap">{{{magI}}} mag
</td></tr>
<tr style="display:none;">
<td><a href="Frequenzband#Astronomie" title="Frequenzband">Helligkeit (J-Band)</a>
</td>
<td class="ibnowrap">{{{magJ}}} mag
</td></tr>
<tr style="display:none;">
<td><a href="Frequenzband#Astronomie" title="Frequenzband">Helligkeit (H-Band)</a>
</td>
<td class="ibnowrap">{{{magH}}} mag
</td></tr>
<tr style="display:none;">
<td><a href="Frequenzband#Astronomie" title="Frequenzband">Helligkeit (K-Band)</a>
</td>
<td class="ibnowrap"> mag
</td></tr>
<tr style="display:none;">
<td><a href="G-Band-Magnitude" title="G-Band-Magnitude">G-Band-Magnitude</a>
</td>
<td class="ibnowrap"> mag
</td></tr>
<tr>
<th colspan="2" class="ibheader">Spektrum und Indices
</th></tr>
<tr style="display:none;">
<td><a href="Benennung_ver%C3%A4nderlicher_Sterne" title="Benennung veränderlicher Sterne">Veränderlicher Sterntyp</a>
</td>
<td class="ibnowrap">
</td></tr>
<tr>
<td>B−V-Farbindex
</td>
<td class="ibnowrap">+0,79<sup id="cite_ref-Simbad_1-2" class="reference"><a href="#cite_note-Simbad-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr style="display:none;">
<td>U−B-<a href="Farbindex" title="Farbindex">Farbindex</a>
</td>
<td class="ibnowrap">
</td></tr>
<tr style="display:none;">
<td>R−I-Index
</td>
<td class="ibnowrap">
</td></tr>
<tr>
<td><a href="Spektralklasse" title="Spektralklasse">Spektralklasse</a>
</td>
<td class="ibnowrap">WN11h<sup id="cite_ref-Simbad_1-3" class="reference"><a href="#cite_note-Simbad-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<th colspan="2" class="ibheader"><a href="Astrometrie" title="Astrometrie">Astrometrie</a>
</th></tr>
<tr style="display:none;">
<td><a href="Radialgeschwindigkeit" title="Radialgeschwindigkeit">Radialgeschwindigkeit</a>
</td>
<td class="ibnowrap"> km/s
</td></tr>
<tr style="display:none;">
<td><a href="Parallaxe" title="Parallaxe">Parallaxe</a>
</td>
<td class="ibnowrap"> <a href="Winkelsekunde" title="Winkelsekunde">mas</a>
</td></tr>
<tr style="display:none;">
<td>Entfernung
</td>
<td class="ibnowrap"> <a href="Parsec" title="Parsec">pc</a>
</td></tr>
<tr style="display:none;">
<td>Visuelle <a href="Absolute_Helligkeit" title="Absolute Helligkeit">Absolute Helligkeit</a> M<sub>vis</sub>
</td>
<td class="ibnowrap"> mag
</td></tr>
<tr style="display:none;">
<td>Bolometrische <a href="Absolute_Helligkeit" title="Absolute Helligkeit">Absolute Helligkeit</a> M<sub>bol</sub>
</td>
<td class="ibnowrap">{{{Absolut-bol}}} mag
</td></tr>
<tr>
<th colspan="2" class="ibheader"><a href="Eigenbewegung_(Astronomie)" title="Eigenbewegung (Astronomie)">Eigenbewegung</a><sup id="cite_ref-Simbad_1-4" class="reference"><a href="#cite_note-Simbad-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</th></tr>
<tr>
<td>Rek.-Anteil:
</td>
<td class="ibnowrap">(−5,83 ± 0,05) <a href="Winkelsekunde" title="Winkelsekunde">mas</a>/<a href="Jahr" title="Jahr">a</a>
</td></tr>
<tr>
<td>Dekl.-Anteil:
</td>
<td class="ibnowrap">(+2,66 ± 0,05) <a href="Winkelsekunde" title="Winkelsekunde">mas</a>/<a href="Jahr" title="Jahr">a</a>
</td></tr>
<tr>
<th colspan="2" class="ibheader">Physikalische Eigenschaften
</th></tr>
<tr style="display:none;">
<td><a href="Masse_(Physik)" title="Masse (Physik)">Masse</a>
</td>
<td class="ibnowrap"> <a href="Sonnenmasse" title="Sonnenmasse"><i>M</i><sub>☉</sub></a>
</td></tr>
<tr style="display:none;">
<td><a href="Radius" title="Radius">Radius</a>
</td>
<td class="ibnowrap"> <a href="Sonnenradius" title="Sonnenradius"><i>R</i><sub>☉</sub></a>
</td></tr>
<tr style="display:none;">
<td><a href="Leuchtkraft" title="Leuchtkraft">Leuchtkraft</a>
</td>
<td class="ibnowrap">
<p> <a href="Sonnenleuchtkraft" title="Sonnenleuchtkraft"><i>L</i><sub>☉</sub></a>
</p>
</td></tr>
<tr style="display:none;">
<td><a href="Effektive_Temperatur" title="Effektive Temperatur">Effektive Temperatur</a>
</td>
<td class="ibnowrap"> <a href="Kelvin" title="Kelvin">K</a>
</td></tr>
<tr style="display:none;">
<td><a href="Metallizit%C3%A4t" title="Metallizität">Metallizität</a> [Fe/H]
</td>
<td class="ibnowrap">
</td></tr>
<tr style="display:none;">
<td><a href="Sternrotation" title="Sternrotation">Rotationsdauer</a>
</td>
<td class="ibnowrap">
</td></tr>
<tr style="display:none;">
<td>Alter
</td>
<td class="ibnowrap"> <a href="Jahr" title="Jahr">a</a>
</td></tr>
<tr>
<th colspan="2" class="ibheader">Andere Bezeichnungen und <a href="Liste_astronomischer_Kataloge" title="Liste astronomischer Kataloge">Katalogeinträge</a>
</th></tr>
<tr>
<td colspan="2"><table class="centered" style="width:100%; border:none; font-size:smaller; margin:0 .2em; white-space:nowrap; line-height:1.3em;"><tbody><tr><td style="white-space:nowrap;"><a href="Tycho-1-Katalog" title="Tycho-1-Katalog">Tycho-Katalog</a></td><td style="white-space:nowrap;">TYC 8958-1166-1<a rel="nofollow" class="external autonumber" href="https://cdsarc.u-strasbg.fr/viz-bin/VizieR-5?-source=I/259&-out.all&-out.max=100&TYC1=8958&TYC2=1166&TYC3=1">[1]</a></td></tr><tr><td style="white-space:nowrap;"><a href="Two_Micron_All_Sky_Survey" title="Two Micron All Sky Survey">2MASS-Katalog</a></td><td style="white-space:nowrap;">2MASS J10535958-6026444<a rel="nofollow" class="external autonumber" href="https://vizier.u-strasbg.fr/viz-bin/VizieR-5?-source=II/246/out&-out.all&&-out.max=10&2MASS=10535958-6026444">[2]</a></td></tr><tr><td style="white-space:nowrap; vertical-align:top; padding-top:0.2em;">Weitere Bezeichnungen</td><td style="white-space:normal;">
WR 31a</td></tr></tbody></table>
</td></tr>
<tr style="display:none;">
<th colspan="2" class="ibheader">Anmerkung
</th></tr>
<tr style="display:none;">
<td colspan="2">{{{Anmerkung}}}
</td></tr></tbody></table>
<p><b>WR 31a</b> ist ein <a href="Wolf-Rayet-Stern" title="Wolf-Rayet-Stern">Wolf-Rayet-Stern</a> im <a href="Kiel_des_Schiffs" title="Kiel des Schiffs">Sternbild Carina</a>. Es wurde anfänglich vermutet, dass es sich auch um einen <a href="Planetarischer_Nebel" title="Planetarischer Nebel">planetarischen Nebel</a> handelt, was nach neueren Untersuchungen aber nicht zutrifft.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Weblinks">Weblinks</h2></div>
<ul><li><a rel="nofollow" class="external text" href="https://esahubble.org/images/potw1608a/">Blue bubble in Carina (engl.)</a></li></ul>
<div class="mw-heading mw-heading2"><h2 id="Quellen">Quellen</h2></div>
<ol class="references">
<li id="cite_note-Simbad-1"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Simbad_1-0">a</a></sup> <sup><a href="#cite_ref-Simbad_1-1">b</a></sup> <sup><a href="#cite_ref-Simbad_1-2">c</a></sup> <sup><a href="#cite_ref-Simbad_1-3">d</a></sup> <sup><a href="#cite_ref-Simbad_1-4">e</a></sup></span> <span class="reference-text"><span class="cite"><a rel="nofollow" class="external text" href="http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=wr+31a&submit=SIMBAD+search"><i>WRAY 15-682.</i></a> In: <i><a href="SIMBAD" title="SIMBAD">SIMBAD</a>.</i> <a href="Centre_de_Donn%C3%A9es_astronomiques_de_Strasbourg" title="Centre de Données astronomiques de Strasbourg">Centre de Données astronomiques de Strasbourg</a>,<span class="Abrufdatum"> abgerufen am 14. September 2018</span>.</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2Fde.wikipedia.org%3AWR+31a&rft.title=WRAY+15-682&rft.description=WRAY+15-682&rft.identifier=http%3A%2F%2Fsimbad.u-strasbg.fr%2Fsimbad%2Fsim-basic%3FIdent%3Dwr%2B31a%26submit%3DSIMBAD%2Bsearch&rft.publisher=%5B%5BCentre+de+Donn%C3%A9es+astronomiques+de+Strasbourg%5D%5D"> </span></span>
</li>
<li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text">David J. Frew, Ivan S. Bojicic, Q. A. Parker: <i>A catalogue of integrated Halpha fluxes for 1258 Galactic planetary nebulae</i>, <a href="Bibcode" title="Bibcode">bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2013MNRAS.431....2F">2013MNRAS.431....2F</a></span>
</li>
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