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margin-top:0; width:350px;" id="Vorlage_Infobox_Einheit" summary="Infobox Einheit"> <tbody><tr> <th colspan="2" style="background:#FFDEAD;"><a href="/wiki/Ma%C3%9Feinheit" title="Maßeinheit">Physikalische Einheit</a> </th></tr> <tr> <td style="min-width:7em;">Einheitenname</td> <td>Steradiant
 </td></tr> <tr> <td><a href="/wiki/Einheitenzeichen" title="Einheitenzeichen">Einheitenzeichen</a> </td> <td><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathrm {sr} }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">s</mi> <mi mathvariant="normal">r</mi> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathrm {sr} }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/32f7e91052818338ddbe39bd0f9413c6bb9474f1" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.828ex; height:1.676ex;" alt="{\displaystyle \mathrm {sr} }"></span>
 </td></tr> <tr> <td><a href="/wiki/Physikalische_Gr%C3%B6%C3%9Fe" title="Physikalische Größe">Physikalische Größe</a> </td> <td><a href="/wiki/Raumwinkel" title="Raumwinkel">Raumwinkel</a>
 </td></tr> <tr> <td><a href="/wiki/Formelzeichen" title="Formelzeichen">Formelzeichen</a> </td> <td><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathit {\Omega }}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi class="MJX-tex-mathit" mathvariant="italic">Ω</mi> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\mathit {\Omega }}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b7dd128543fda40b4440beb6f7e67557c73e59a6" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; margin-right: -0.1ex; width:1.764ex; height:2.176ex;" alt="{\displaystyle {\mathit {\Omega }}}"></span>
 </td></tr> <tr> <td><a href="/wiki/Dimension_(Gr%C3%B6%C3%9Fensystem)" title="Dimension (Größensystem)">Dimension</a> </td> <td><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {{\frac {L^{2}}{L^{2}}}=1}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msup> <mi mathvariant="sans-serif">L</mi> <mrow class="MJX-TeXAtom-ORD"> <mn mathvariant="sans-serif">2</mn> </mrow> </msup> <msup> <mi mathvariant="sans-serif">L</mi> <mrow class="MJX-TeXAtom-ORD"> <mn mathvariant="sans-serif">2</mn> </mrow> </msup> </mfrac> </mrow> <mo mathvariant="sans-serif">=</mo> <mn mathvariant="sans-serif">1</mn> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\mathsf {{\frac {L^{2}}{L^{2}}}=1}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/33e1196aabce83dd62853fe81eaa8651f7cfc2eb" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.005ex; width:7.411ex; height:5.843ex;" alt="{\displaystyle {\mathsf {{\frac {L^{2}}{L^{2}}}=1}}}"></span>
 </td></tr> <tr> <td>System </td> <td><a href="/wiki/Internationales_Einheitensystem" title="Internationales Einheitensystem">Internationales Einheitensystem</a>
 </td></tr> <tr> <td>In <a href="/wiki/Internationales_Einheitensystem#SI-Einheiten" title="Internationales Einheitensystem">SI-Einheiten</a> </td> <td><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathrm {1\,sr=1\;{\frac {m^{2}}{m^{2}}}=1} \,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> <mspace width="thinmathspace" /> <mi mathvariant="normal">s</mi> <mi mathvariant="normal">r</mi> <mo>=</mo> <mn>1</mn> <mspace width="thickmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msup> <mi mathvariant="normal">m</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <msup> <mi mathvariant="normal">m</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mfrac> </mrow> <mo>=</mo> <mn>1</mn> </mrow> <mspace width="thinmathspace" /> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathrm {1\,sr=1\;{\frac {m^{2}}{m^{2}}}=1} \,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2f7be8d926d98b37d252628447c3ce6ea077847f" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.005ex; width:16.758ex; height:5.843ex;" alt="{\displaystyle \mathrm {1\,sr=1\;{\frac {m^{2}}{m^{2}}}=1} \,}"></span>
 </td></tr> <tr> <td>Benannt nach </td> <td><span style="font-style:normal;font-weight:normal"><a href="/wiki/Neugriechische_Sprache" title="Neugriechische Sprache">griechisch</a></span> <span lang="el-Grek" class="Grek" style="font-style:normal"><i>στερεός</i></span>, „räumlich“ und <span style="font-style:normal;font-weight:normal"><a href="/wiki/Latein" title="Latein">lateinisch</a></span> <span lang="la-Latn" style="font-style:italic"><i>radius</i></span>, „Strahl“
 </td></tr> <tr> <td>Abgeleitet von </td> <td><a href="/wiki/Radiant_(Einheit)" title="Radiant (Einheit)">Radiant</a>
 </td></tr> <tr> <td colspan="2"><i>Siehe auch:</i> <a href="/wiki/Quadratgrad" title="Quadratgrad">Quadratgrad</a> </td></tr></tbody></table> <p>Der <b>Steradiant</b> (<a href="/wiki/Einheitenzeichen" title="Einheitenzeichen">Einheitenzeichen:</a> <b>sr</b>) ist eine <a href="/wiki/Ma%C3%9Feinheit" title="Maßeinheit">Maßeinheit</a> für den <a href="/wiki/Raumwinkel" title="Raumwinkel">Raumwinkel</a>. Im <a href="/wiki/Internationales_Einheitensystem" title="Internationales Einheitensystem">Internationalen Einheitensystem</a> (SI) ist er als <a href="/wiki/Internationales_Einheitensystem#Abgeleitete_Größen_und_Einheiten" title="Internationales Einheitensystem">abgeleitete Maßeinheit</a> enthalten. </p><p>Auf einer <a href="/wiki/Kugel" title="Kugel">Kugel</a> mit 1 <a href="/wiki/Meter" title="Meter">m</a> <a href="/wiki/Radius" title="Radius">Radius</a> umschließt ein Steradiant eine <a href="/wiki/Fl%C3%A4che_(Mathematik)" title="Fläche (Mathematik)">Fläche</a> von 1 m² auf der <a href="/wiki/Kugeloberfl%C3%A4che" class="mw-redirect" title="Kugeloberfläche">Kugeloberfläche</a>. Der Raumwinkel der gesamten Kugeloberfläche beträgt 4<a href="/wiki/Kreiszahl" title="Kreiszahl">π</a> sr. </p> <div id="toc" class="toc" role="navigation" aria-labelledby="mw-toc-heading"><input type="checkbox" role="button" id="toctogglecheckbox" class="toctogglecheckbox" style="display:none" /><div class="toctitle" lang="de" dir="ltr"><h2 id="mw-toc-heading">Inhaltsverzeichnis</h2><span class="toctogglespan"><label class="toctogglelabel" for="toctogglecheckbox"></label></span></div> <ul> <li class="toclevel-1 tocsection-1"><a href="#Definition"><span class="tocnumber">1</span> <span class="toctext">Definition</span></a></li> <li class="toclevel-1 tocsection-2"><a href="#Geschichte"><span class="tocnumber">2</span> <span class="toctext">Geschichte</span></a></li> <li class="toclevel-1 tocsection-3"><a href="#Siehe_auch"><span class="tocnumber">3</span> <span class="toctext">Siehe auch</span></a></li> <li class="toclevel-1 tocsection-4"><a href="#Weblinks"><span class="tocnumber">4</span> <span class="toctext">Weblinks</span></a></li> <li class="toclevel-1 tocsection-5"><a href="#Einzelnachweise"><span class="tocnumber">5</span> <span class="toctext">Einzelnachweise</span></a></li> </ul> </div> <div class="mw-heading mw-heading2"><h2 id="Definition">Definition</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Steradiant&veaction=edit&section=1" title="Abschnitt bearbeiten: Definition" class="mw-editsection-visualeditor"><span>Bearbeiten</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Steradiant&action=edit&section=1" title="Quellcode des Abschnitts bearbeiten: Definition"><span>Quelltext bearbeiten</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Datei:Steradian.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Steradian.svg/220px-Steradian.svg.png" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Steradian.svg/330px-Steradian.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Steradian.svg/440px-Steradian.svg.png 2x" data-file-width="433" data-file-height="433" /></a><figcaption>Definition des Steradiants</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Datei:Steradiant_vs_Grad.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/de/thumb/8/86/Steradiant_vs_Grad.svg/220px-Steradiant_vs_Grad.svg.png" decoding="async" width="220" height="150" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/de/thumb/8/86/Steradiant_vs_Grad.svg/330px-Steradiant_vs_Grad.svg.png 1.5x, //upload.wikimedia.org/wikipedia/de/thumb/8/86/Steradiant_vs_Grad.svg/440px-Steradiant_vs_Grad.svg.png 2x" data-file-width="420" data-file-height="287" /></a><figcaption>Zusammenhang zwischen Öffnungswinkel <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \alpha }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>α</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \alpha }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b79333175c8b3f0840bfb4ec41b8072c83ea88d3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.488ex; height:1.676ex;" alt="{\displaystyle \alpha }"></span> in Grad und <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \Omega }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">Ω</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Omega }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/24b0d5ca6f381068d756f6337c08e0af9d1eeb6f" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.678ex; height:2.176ex;" alt="{\displaystyle \Omega }"></span> in Steradiant (in Vielfachen von <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \pi =3{,}1415\ldots }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>π</mi> <mo>=</mo> <mn>3,141</mn> <mn>5</mn> <mo>…</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \pi =3{,}1415\ldots }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/3dd124a9501a8056ee7304f8f80df81bcb254188" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:14ex; height:2.509ex;" alt="{\displaystyle \pi =3{,}1415\ldots }"></span>) für einen symmetrischen Konus.</figcaption></figure> <p>Gegeben sei eine Kugel mit dem Radius <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle r}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>r</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle r}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0d1ecb613aa2984f0576f70f86650b7c2a132538" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.049ex; height:1.676ex;" alt="{\displaystyle r}"></span>. Dann ist ein Steradiant (sr) der Raumwinkel, den von der Mitte der Kugel aus gesehen eine <a href="/wiki/Kugelkalotte" class="mw-redirect" title="Kugelkalotte">Kugelkalotte</a> mit der Fläche <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle r^{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle r^{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/a363a15442d031416d1eb62254a9c726e3f6c66c" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.103ex; height:2.676ex;" alt="{\displaystyle r^{2}}"></span> auf der Kugeloberfläche einnimmt. Dieser Raumwinkel lässt sich berechnen als die Fläche <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle A_{t}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>A</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>t</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle A_{t}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/265483c517cb98cde609f03a31964d86cdcb05c9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.569ex; height:2.509ex;" alt="{\displaystyle A_{t}}"></span> der Kugelkalotte <a href="/wiki/Division_(Mathematik)" title="Division (Mathematik)">dividiert</a> durch das Quadrat des Radius <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle r}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>r</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle r}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0d1ecb613aa2984f0576f70f86650b7c2a132538" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.049ex; height:1.676ex;" alt="{\displaystyle r}"></span>: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \Omega ={\frac {A_{t}}{r^{2}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">Ω</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msub> <mi>A</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>t</mi> </mrow> </msub> <msup> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Omega ={\frac {A_{t}}{r^{2}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/5f795ca3f624704570b4fcb377a9257a5b066f62" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.171ex; width:8.182ex; height:5.676ex;" alt="{\displaystyle \Omega ={\frac {A_{t}}{r^{2}}}}"></span></dd></dl> <p>Die Division bewirkt, dass der Raumwinkel nicht vom Radius der betrachteten Kugel abhängt. </p><p>Der volle Raumwinkel (einer Kugel) beträgt <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 4\pi \,{\text{sr}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mn>4</mn> <mi>π</mi> <mspace width="thinmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mtext>sr</mtext> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle 4\pi \,{\text{sr}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2dcf0a453ca2ca68ada375770b43c77d6224b306" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:4.709ex; height:2.176ex;" alt="{\displaystyle 4\pi \,{\text{sr}}}"></span>, der volle Winkel (Vollwinkel) einer ebenen Kreisscheibe (Vollkreis) <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 2\pi \,{\text{rad}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mn>2</mn> <mi>π</mi> <mspace width="thinmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mtext>rad</mtext> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle 2\pi \,{\text{rad}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/915cd03e1bc5de78dc39a92d9eb44cad8d3ab65d" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:6.248ex; height:2.176ex;" alt="{\displaystyle 2\pi \,{\text{rad}}}"></span>. </p> <dl><dt>Beispiel</dt> <dd></dd></dl> <p>Der Raumwinkel eines Kegels, der aus einer Kugel mit Radius 3 m eine Teilfläche (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle A_{t}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>A</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>t</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle A_{t}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/265483c517cb98cde609f03a31964d86cdcb05c9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.569ex; height:2.509ex;" alt="{\displaystyle A_{t}}"></span>) von 13,5 m<sup>2</sup> herausschneidet, beträgt <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\frac {13{,}5\,{\text{m}}^{2}}{(3\,{\text{m}})^{2}}}={\frac {13{,}5\,{\text{m}}^{2}}{9\,{\text{m}}^{2}}}=1{,}5\,{\text{sr}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mn>13</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>,</mo> </mrow> <mn>5</mn> <mspace width="thinmathspace" /> <msup> <mrow class="MJX-TeXAtom-ORD"> <mtext>m</mtext> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> <mrow> <mo stretchy="false">(</mo> <mn>3</mn> <mspace width="thinmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mtext>m</mtext> </mrow> <msup> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> </mfrac> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mn>13</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>,</mo> </mrow> <mn>5</mn> <mspace width="thinmathspace" /> <msup> <mrow class="MJX-TeXAtom-ORD"> <mtext>m</mtext> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> <mrow> <mn>9</mn> <mspace width="thinmathspace" /> <msup> <mrow class="MJX-TeXAtom-ORD"> <mtext>m</mtext> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> </mfrac> </mrow> <mo>=</mo> <mn>1</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>,</mo> </mrow> <mn>5</mn> <mspace width="thinmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mtext>sr</mtext> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\frac {13{,}5\,{\text{m}}^{2}}{(3\,{\text{m}})^{2}}}={\frac {13{,}5\,{\text{m}}^{2}}{9\,{\text{m}}^{2}}}=1{,}5\,{\text{sr}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9c13d170e45e2dbd8ab325189149298dfe3a978c" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.671ex; width:28.079ex; height:6.509ex;" alt="{\displaystyle {\frac {13{,}5\,{\text{m}}^{2}}{(3\,{\text{m}})^{2}}}={\frac {13{,}5\,{\text{m}}^{2}}{9\,{\text{m}}^{2}}}=1{,}5\,{\text{sr}}}"></span>. </p><p>Bezieht sich der Raumwinkel auf einen <a href="/wiki/Kegel_(Geometrie)" title="Kegel (Geometrie)">Kreiskegel</a> vom Kugelmittelpunkt aus, wie in der Abbildung rechts (<a href="/wiki/Raumwinkel#Raumwinkel_eines_Kegels" title="Raumwinkel">kanonischer Raumwinkel</a>), so kann man ihn im halbierenden Schnitt durch die Kegelmitte als <a href="/wiki/Winkel" title="Winkel">ebenen Winkel</a> <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \alpha }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>α</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \alpha }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b79333175c8b3f0840bfb4ec41b8072c83ea88d3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.488ex; height:1.676ex;" alt="{\displaystyle \alpha }"></span> betrachten. Aus der Beziehung für die Fläche der Kugelkappe des Kegels und dem Winkel <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \alpha }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>α</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \alpha }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b79333175c8b3f0840bfb4ec41b8072c83ea88d3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.488ex; height:1.676ex;" alt="{\displaystyle \alpha }"></span> lässt sich folgender Zusammenhang ableiten: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \Omega =2\pi \left(1-\cos \left({\frac {\alpha }{2}}\right)\right)\quad \Leftrightarrow \quad \alpha =2\arccos \left(1-{\frac {\Omega }{2\pi }}\right)\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">Ω</mi> <mo>=</mo> <mn>2</mn> <mi>π</mi> <mrow> <mo>(</mo> <mrow> <mn>1</mn> <mo>−</mo> <mi>cos</mi> <mo>⁡</mo> <mrow> <mo>(</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi>α</mi> <mn>2</mn> </mfrac> </mrow> <mo>)</mo> </mrow> </mrow> <mo>)</mo> </mrow> <mspace width="1em" /> <mo stretchy="false">⇔</mo> <mspace width="1em" /> <mi>α</mi> <mo>=</mo> <mn>2</mn> <mi>arccos</mi> <mo>⁡</mo> <mrow> <mo>(</mo> <mrow> <mn>1</mn> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi mathvariant="normal">Ω</mi> <mrow> <mn>2</mn> <mi>π</mi> </mrow> </mfrac> </mrow> </mrow> <mo>)</mo> </mrow> <mspace width="thinmathspace" /> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Omega =2\pi \left(1-\cos \left({\frac {\alpha }{2}}\right)\right)\quad \Leftrightarrow \quad \alpha =2\arccos \left(1-{\frac {\Omega }{2\pi }}\right)\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ba051e68c80c18f7243f16809340d1424024e487" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.505ex; width:54.401ex; height:6.176ex;" alt="{\displaystyle \Omega =2\pi \left(1-\cos \left({\frac {\alpha }{2}}\right)\right)\quad \Leftrightarrow \quad \alpha =2\arccos \left(1-{\frac {\Omega }{2\pi }}\right)\,}"></span>.</dd></dl> <p>Der Öffnungswinkel <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \alpha }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>α</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \alpha }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b79333175c8b3f0840bfb4ec41b8072c83ea88d3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.488ex; height:1.676ex;" alt="{\displaystyle \alpha }"></span> eines Kegels, der den Raumwinkel 1 sr abdeckt, beträgt ca. 65,54°. </p> <dl><dt>Beispiel</dt> <dd></dd></dl> <p>Die <a href="/wiki/Schiefe_der_Ekliptik" class="mw-redirect" title="Schiefe der Ekliptik">Schiefe der Ekliptik</a> beträgt 23°26'10". Damit umschließt die <a href="/wiki/Pr%C3%A4zession" title="Präzession">Präzession</a> der Erdachse bei einer Erdumdrehung </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\begin{aligned}\Omega &=2\pi \left[1-\cos \left({\frac {23^{\circ }26'10''}{2}}\right)\right]\approx 0{,}041682\pi =0{,}130949\,{\text{sr}}.\end{aligned}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mtable columnalign="right left right left right left right left right left right left" rowspacing="3pt" columnspacing="0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em" displaystyle="true"> <mtr> <mtd> <mi mathvariant="normal">Ω</mi> </mtd> <mtd> <mi></mi> <mo>=</mo> <mn>2</mn> <mi>π</mi> <mrow> <mo>[</mo> <mrow> <mn>1</mn> <mo>−</mo> <mi>cos</mi> <mo>⁡</mo> <mrow> <mo>(</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <msup> <mn>23</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>∘</mo> </mrow> </msup> <msup> <mn>26</mn> <mo>′</mo> </msup> <msup> <mn>10</mn> <mo>″</mo> </msup> </mrow> <mn>2</mn> </mfrac> </mrow> <mo>)</mo> </mrow> </mrow> <mo>]</mo> </mrow> <mo>≈</mo> <mn>0,041</mn> <mn>682</mn> <mi>π</mi> <mo>=</mo> <mn>0,130</mn> <mn>949</mn> <mspace width="thinmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mtext>sr</mtext> </mrow> <mo>.</mo> </mtd> </mtr> </mtable> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\begin{aligned}\Omega &=2\pi \left[1-\cos \left({\frac {23^{\circ }26'10''}{2}}\right)\right]\approx 0{,}041682\pi =0{,}130949\,{\text{sr}}.\end{aligned}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/da0443e7de05e684eb2a7c8c8df81d0813fe32b7" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.505ex; width:60.045ex; height:6.176ex;" alt="{\displaystyle {\begin{aligned}\Omega &=2\pi \left[1-\cos \left({\frac {23^{\circ }26'10''}{2}}\right)\right]\approx 0{,}041682\pi =0{,}130949\,{\text{sr}}.\end{aligned}}}"></span></dd></dl> <div class="mw-heading mw-heading2"><h2 id="Geschichte">Geschichte</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Steradiant&veaction=edit&section=2" title="Abschnitt bearbeiten: Geschichte" class="mw-editsection-visualeditor"><span>Bearbeiten</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Steradiant&action=edit&section=2" title="Quellcode des Abschnitts bearbeiten: Geschichte"><span>Quelltext bearbeiten</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Im SI war zunächst offengelassen worden, ob Steradiant und <a href="/wiki/Radiant_(Einheit)" title="Radiant (Einheit)">Radiant</a> abgeleitete Einheiten oder Basiseinheiten sind; für beide wurde die Klasse der „ergänzenden Einheiten“ geschaffen. 1980 empfahl das <a href="/wiki/CIPM" class="mw-redirect" title="CIPM">CIPM</a>, diese ergänzenden Einheiten als abgeleitete zu interpretieren. Dem folgte 1995 die 20. <a href="/wiki/Generalkonferenz_f%C3%BCr_Ma%C3%9F_und_Gewicht" title="Generalkonferenz für Maß und Gewicht">Generalkonferenz für Maße und Gewichte</a> (CGPM) und beschloss in Resolution 8 die Aufhebung der Klasse der ergänzenden Einheiten.<sup id="cite_ref-CGPM-20-8_1-0" class="reference"><a href="#cite_note-CGPM-20-8-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Das Einheitenzeichen „sr“ wurde 1950 vom CIPM festgelegt. Früher wurden auch die Zeichen „str“ und „sterad“ benutzt. </p> <div class="mw-heading mw-heading2"><h2 id="Siehe_auch">Siehe auch</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Steradiant&veaction=edit&section=3" title="Abschnitt bearbeiten: Siehe auch" class="mw-editsection-visualeditor"><span>Bearbeiten</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Steradiant&action=edit&section=3" title="Quellcode des Abschnitts bearbeiten: Siehe auch"><span>Quelltext bearbeiten</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Quadratgrad" title="Quadratgrad">Quadratgrad</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Weblinks">Weblinks</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Steradiant&veaction=edit&section=4" title="Abschnitt bearbeiten: Weblinks" class="mw-editsection-visualeditor"><span>Bearbeiten</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Steradiant&action=edit&section=4" title="Quellcode des Abschnitts bearbeiten: Weblinks"><span>Quelltext bearbeiten</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="sisterproject" style="margin:0.1em 0 0 0;"><div class="noresize noviewer" style="display:inline-block; line-height:10px; min-width:1.6em; text-align:center;" aria-hidden="true" role="presentation"><span class="mw-default-size" typeof="mw:File"><span title="Commons"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/12px-Commons-logo.svg.png" decoding="async" width="12" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/24px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></div><b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Steradian?uselang=de"><span lang="en">Commons</span>: Steradian</a></span></b> – Sammlung von Bildern, Videos und Audiodateien</div> <div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Steradiant&veaction=edit&section=5" title="Abschnitt bearbeiten: Einzelnachweise" class="mw-editsection-visualeditor"><span>Bearbeiten</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Steradiant&action=edit&section=5" title="Quellcode des Abschnitts bearbeiten: Einzelnachweise"><span>Quelltext bearbeiten</span></a><span class="mw-editsection-bracket">]</span></span></div> <ol class="references"> <li id="cite_note-CGPM-20-8-1"><span class="mw-cite-backlink"><a href="#cite_ref-CGPM-20-8_1-0">↑</a></span> <span class="reference-text"> <span class="cite"><a rel="nofollow" class="external text" href="https://www.bipm.org/en/committees/cg/cgpm/20-1995/resolution-8"><i>Resolution 8 of the 20st CGPM (1995). Elimination of the class of supplementary units in the SI.</i></a> <a href="/wiki/Internationales_B%C3%BCro_f%C3%BCr_Ma%C3%9F_und_Gewicht" title="Internationales Büro für Maß und Gewicht">Bureau International des Poids et Mesures</a>,<span class="Abrufdatum"> abgerufen am 12. April 2021</span> (englisch).</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%3ASteradiant&rft.title=Resolution+8+of+the+20st+CGPM+%281995%29.+Elimination+of+the+class+of+supplementary+units+in+the+SI&rft.description=Resolution+8+of+the+20st+CGPM+%281995%29.+Elimination+of+the+class+of+supplementary+units+in+the+SI&rft.identifier=https%3A%2F%2Fwww.bipm.org%2Fen%2Fcommittees%2Fcg%2Fcgpm%2F20-1995%2Fresolution-8&rft.publisher=%5B%5BInternationales+B%C3%BCro+f%C3%BCr+Ma%C3%9F+und+Gewicht%7CBureau+International+des+Poids+et+Mesures%5D%5D&rft.date=&rft.language=en"> </span></span> </li> </ol> <style 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.erw-nav-leiste,html.skin-theme-clientpref-night .mw-parser-output .erw-nav-farbschema-blau .erw-nav-gruppe,html.skin-theme-clientpref-night .mw-parser-output .erw-nav-farbschema-grau .erw-nav-leiste,html.skin-theme-clientpref-night .mw-parser-output .erw-nav-farbschema-grau .erw-nav-gruppe{background-color:#202122}html.skin-theme-clientpref-night .mw-parser-output .erweiterte-navigationsleiste .NavContent .wikitable tr,html.skin-theme-clientpref-night .mw-parser-output .erweiterte-navigationsleiste .NavContent .wikitable td{border-color:#101418!important}html.skin-theme-clientpref-night .mw-parser-output .erw-nav-bild span[typeof="mw:File"] img{background-color:#c8ccd1}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .erw-nav-farbschema-blau .erw-nav-leiste,html.skin-theme-clientpref-os .mw-parser-output .erw-nav-farbschema-blau .erw-nav-gruppe,html.skin-theme-clientpref-os .mw-parser-output .erw-nav-farbschema-grau .erw-nav-leiste,html.skin-theme-clientpref-os .mw-parser-output .erw-nav-farbschema-grau .erw-nav-gruppe{background-color:#202122}html.skin-theme-clientpref-os .mw-parser-output .erweiterte-navigationsleiste .NavContent .wikitable tr,html.skin-theme-clientpref-os .mw-parser-output .erweiterte-navigationsleiste .NavContent .wikitable td{border-color:#101418!important}html.skin-theme-clientpref-os .mw-parser-output .erw-nav-bild span[typeof="mw:File"] img{background-color:#c8ccd1}}.mw-parser-output .erweiterte-navigationsleiste .hlist .wikitable{border-top:0px!important;border-bottom:0px!important;margin-top:0!important;margin-bottom:0!important}.mw-parser-output .erweiterte-navigationsleiste .hlist .wikitable tr:first-of-type td{border-top:0px!important}.mw-parser-output .erweiterte-navigationsleiste .hlist .wikitable tr:last-of-type td{border-bottom:0px!important}</style><div class="NavHead" style=""><a href="/wiki/Internationales_Einheitensystem#SI-Einheiten" title="Internationales Einheitensystem">SI-Einheiten</a></div><div class="NavContent" style="clear:left;"> <table class="wikitable erw-nav-zebra" style="width:100%;margin:0;text-align:left;font-size:95%;margin-top:.1em;margin-bottom:.0em;"> <tbody><tr> <td class="erw-nav-gruppe" style="color:#202122;white-space: nowrap;text-align: right;border: 1px solid transparent;border-top: 1px solid #FFF;border-bottom: 2px solid #FFF;padding: 0 1em;"><b><a href="/wiki/Internationales_Einheitensystem#SI-Basiseinheiten" title="Internationales Einheitensystem">SI-Basiseinheiten</a></b> </td> <td class="hlist" style="text-align: left;border-left: 2px solid #fdfdfd;width: 100%;margin: .4em 0;border-color: #fdfdfd;padding: 0 .25em;"> <p><a href="/wiki/Sekunde" title="Sekunde">Sekunde</a> | <a href="/wiki/Meter" title="Meter">Meter</a> | <a href="/wiki/Kilogramm" title="Kilogramm">Kilogramm</a> | <a href="/wiki/Ampere" title="Ampere">Ampere</a> | <a href="/wiki/Kelvin" title="Kelvin">Kelvin</a> | <a href="/wiki/Mol" title="Mol">Mol</a> | <a href="/wiki/Candela" title="Candela">Candela</a> </p> </td></tr> <tr> <td class="erw-nav-gruppe" style="color:#202122;white-space: nowrap;text-align: right;border: 1px solid transparent;border-top: 1px solid #FFF;border-bottom: 2px solid #FFF;padding: 0 1em;"><b><a href="/wiki/Internationales_Einheitensystem#Abgeleitete_SI-Einheiten_mit_besonderem_Namen" title="Internationales Einheitensystem">Abgeleitete SI-Einheiten<br />mit besonderem Namen</a></b> </td> <td class="hlist" style="text-align: left;border-left: 2px solid #fdfdfd;width: 100%;margin: .4em 0;border-color: #fdfdfd;padding: 0 .25em;"> <p><a href="/wiki/Radiant_(Einheit)" title="Radiant (Einheit)">Radiant</a> • <a class="mw-selflink selflink">Steradiant</a> | <a href="/wiki/Hertz_(Einheit)" title="Hertz (Einheit)">Hertz</a> | <a href="/wiki/Newton_(Einheit)" title="Newton (Einheit)">Newton</a> • <a href="/wiki/Pascal_(Einheit)" title="Pascal (Einheit)">Pascal</a> • <a href="/wiki/Joule" title="Joule">Joule</a> • <a href="/wiki/Watt_(Einheit)" title="Watt (Einheit)">Watt</a> | <a href="/wiki/Coulomb" title="Coulomb">Coulomb</a> • <a href="/wiki/Volt" title="Volt">Volt</a> • <a href="/wiki/Farad" title="Farad">Farad</a> • <a href="/wiki/Ohm" title="Ohm">Ohm</a> • <a href="/wiki/Siemens_(Einheit)" title="Siemens (Einheit)">Siemens</a> • <a href="/wiki/Weber_(Einheit)" title="Weber (Einheit)">Weber</a> • <a href="/wiki/Tesla_(Einheit)" title="Tesla (Einheit)">Tesla</a> • <a href="/wiki/Henry_(Einheit)" title="Henry (Einheit)">Henry</a> | <a href="/wiki/Grad_Celsius" title="Grad Celsius">Grad Celsius</a> | <a href="/wiki/Lumen_(Einheit)" title="Lumen (Einheit)">Lumen</a> • <a href="/wiki/Lux_(Einheit)" title="Lux (Einheit)">Lux</a> | <a href="/wiki/Becquerel_(Einheit)" title="Becquerel (Einheit)">Becquerel</a> • <a href="/wiki/Gray" title="Gray">Gray</a> • <a href="/wiki/Sievert_(Einheit)" title="Sievert (Einheit)">Sievert</a> | <a href="/wiki/Katal" title="Katal">Katal</a> </p> </td></tr> <tr> <td class="erw-nav-gruppe" style="color:#202122;white-space: nowrap;text-align: right;border: 1px solid transparent;border-top: 1px solid #FFF;border-bottom: 1px solid #FFF;padding: 0 1em;"><b><a href="/wiki/Gebr%C3%A4uchliche_Nicht-SI-Einheiten#Zur_Verwendung_mit_dem_SI_zugelassene_Einheiten" title="Gebräuchliche Nicht-SI-Einheiten">Zum Gebrauch mit dem SI<br />zugelassene Einheiten</a></b> </td> <td class="hlist" style="text-align: left;border-left: 2px solid #fdfdfd;width: 100%;margin: .4em 0;border-color: #fdfdfd;padding: 0 .25em;"> <p><a href="/wiki/Minute" title="Minute">Minute</a> • <a href="/wiki/Stunde" title="Stunde">Stunde</a> • <a href="/wiki/Tag" title="Tag">Tag</a> | <a href="/wiki/Astronomische_Einheit" title="Astronomische Einheit">Astronomische Einheit</a> | <a href="/wiki/Grad_(Winkel)" title="Grad (Winkel)">Winkelgrad</a> • <a href="/wiki/Winkelminute" title="Winkelminute">Winkelminute</a> • <a href="/wiki/Winkelsekunde" 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class="mw-list-item"><a href="/wiki/Spezial:Letzte_%C3%84nderungen" title="Liste der letzten Änderungen in Wikipedia [r]" accesskey="r"><span>Letzte Änderungen</span></a></li><li id="n-contact" class="mw-list-item"><a href="/wiki/Wikipedia:Kontakt" title="Kontaktmöglichkeiten"><span>Kontakt</span></a></li><li id="n-sitesupport" class="mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_de.wikipedia.org&uselang=de" title="Unterstütze uns"><span>Spenden</span></a></li> </ul> </div> </nav> <nav id="p-tb" class="mw-portlet mw-portlet-tb vector-menu-portal portal vector-menu" aria-labelledby="p-tb-label" > <h3 id="p-tb-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Werkzeuge</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Spezial:Linkliste/Steradiant" title="Liste aller Seiten, die 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href="/w/index.php?title=Spezial:Zitierhilfe&page=Steradiant&id=247012932&wpFormIdentifier=titleform" title="Hinweise, wie diese Seite zitiert werden kann"><span>Artikel zitieren</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Spezial:URL-K%C3%BCrzung&url=https%3A%2F%2Fde.wikipedia.org%2Fwiki%2FSteradiant"><span>Kurzlink</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Spezial:QrCode&url=https%3A%2F%2Fde.wikipedia.org%2Fwiki%2FSteradiant"><span>QR-Code herunterladen</span></a></li> </ul> </div> </nav> <nav id="p-coll-print_export" class="mw-portlet mw-portlet-coll-print_export vector-menu-portal portal vector-menu" aria-labelledby="p-coll-print_export-label" > <h3 id="p-coll-print_export-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Drucken/exportieren</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Spezial:DownloadAsPdf&page=Steradiant&action=show-download-screen"><span>Als PDF herunterladen</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Steradiant&printable=yes" title="Druckansicht dieser Seite [p]" accesskey="p"><span>Druckversion</span></a></li> </ul> </div> </nav> <nav id="p-wikibase-otherprojects" class="mw-portlet mw-portlet-wikibase-otherprojects vector-menu-portal portal vector-menu" aria-labelledby="p-wikibase-otherprojects-label" > <h3 id="p-wikibase-otherprojects-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">In anderen Projekten</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Steradian" hreflang="en"><span>Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q177612" title="Link zum verbundenen Objekt im Datenrepositorium [g]" accesskey="g"><span>Wikidata-Datenobjekt</span></a></li> </ul> </div> </nav> <nav id="p-lang" class="mw-portlet mw-portlet-lang vector-menu-portal portal vector-menu" aria-labelledby="p-lang-label" > <h3 id="p-lang-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">In anderen Sprachen</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Steradiaal" title="Steradiaal – Afrikaans" lang="af" hreflang="af" data-title="Steradiaal" data-language-autonym="Afrikaans" data-language-local-name="Afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B3%D8%AA%D8%B1%D8%A7%D8%AF%D9%8A%D8%A7%D9%86" title="ستراديان – Arabisch" lang="ar" hreflang="ar" data-title="ستراديان" data-language-autonym="العربية" data-language-local-name="Arabisch" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Estereorradi%C3%A1n" title="Estereorradián – Asturisch" lang="ast" hreflang="ast" data-title="Estereorradián" data-language-autonym="Asturianu" data-language-local-name="Asturisch" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A1%D1%82%D1%8D%D1%80%D0%B0%D0%B4%D1%8B%D1%8F%D0%BD" title="Стэрадыян – Belarussisch" lang="be" hreflang="be" data-title="Стэрадыян" data-language-autonym="Беларуская" data-language-local-name="Belarussisch" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A1%D1%82%D1%8D%D1%80%D0%B0%D0%B4%D1%8B%D1%8F%D0%BD" title="Стэрадыян – Weißrussisch (Taraschkewiza)" lang="be-tarask" hreflang="be-tarask" data-title="Стэрадыян" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Weißrussisch (Taraschkewiza)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A1%D1%82%D0%B5%D1%80%D0%B0%D0%B4%D0%B8%D0%B0%D0%BD" title="Стерадиан – Bulgarisch" lang="bg" hreflang="bg" data-title="Стерадиан" data-language-autonym="Български" data-language-local-name="Bulgarisch" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B8%E0%A7%8D%E0%A6%9F%E0%A7%87%E0%A6%B0%E0%A7%87%E0%A6%A1%E0%A6%BF%E0%A6%AF%E0%A6%BC%E0%A6%BE%E0%A6%A8" title="স্টেরেডিয়ান – Bengalisch" lang="bn" hreflang="bn" data-title="স্টেরেডিয়ান" data-language-autonym="বাংলা" data-language-local-name="Bengalisch" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bo mw-list-item"><a href="https://bo.wikipedia.org/wiki/%E0%BD%9F%E0%BE%B3%E0%BD%B4%E0%BD%98%E0%BC%8B%E0%BD%84%E0%BD%BC%E0%BD%A6%E0%BC%8B%E0%BD%9A%E0%BD%91%E0%BC%8D" title="ཟླུམ་ངོས་ཚད། – Tibetisch" lang="bo" hreflang="bo" data-title="ཟླུམ་ངོས་ཚད།" data-language-autonym="བོད་ཡིག" data-language-local-name="Tibetisch" class="interlanguage-link-target"><span>བོད་ཡིག</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Estereoradian" title="Estereoradian – Katalanisch" lang="ca" hreflang="ca" data-title="Estereoradian" data-language-autonym="Català" data-language-local-name="Katalanisch" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%B3%D8%AA%D8%B1%D8%A7%D8%AF%DB%8C%D8%A7%D9%86" title="سترادیان – Zentralkurdisch" lang="ckb" hreflang="ckb" data-title="سترادیان" data-language-autonym="کوردی" data-language-local-name="Zentralkurdisch" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Steradi%C3%A1n" title="Steradián – Tschechisch" lang="cs" hreflang="cs" data-title="Steradián" data-language-autonym="Čeština" data-language-local-name="Tschechisch" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%A1%D1%82%D0%B5%D1%80%D0%B0%D0%B4%D0%B8%D0%B0%D0%BD" title="Стерадиан – Tschuwaschisch" lang="cv" hreflang="cv" data-title="Стерадиан" data-language-autonym="Чӑвашла" data-language-local-name="Tschuwaschisch" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Steradian" title="Steradian – Walisisch" lang="cy" hreflang="cy" data-title="Steradian" data-language-autonym="Cymraeg" data-language-local-name="Walisisch" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Steradian" title="Steradian – Dänisch" lang="da" hreflang="da" data-title="Steradian" data-language-autonym="Dansk" data-language-local-name="Dänisch" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A3%CF%84%CE%B5%CF%81%CE%B1%CE%BA%CF%84%CE%AF%CE%BD%CE%B9%CE%BF" title="Στερακτίνιο – Griechisch" lang="el" hreflang="el" data-title="Στερακτίνιο" data-language-autonym="Ελληνικά" data-language-local-name="Griechisch" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Steradian" title="Steradian – Englisch" lang="en" hreflang="en" data-title="Steradian" data-language-autonym="English" data-language-local-name="Englisch" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Steradiano" title="Steradiano – Esperanto" lang="eo" hreflang="eo" data-title="Steradiano" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Estereorradi%C3%A1n" title="Estereorradián – Spanisch" lang="es" hreflang="es" data-title="Estereorradián" data-language-autonym="Español" data-language-local-name="Spanisch" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Steradiaan" title="Steradiaan – Estnisch" lang="et" hreflang="et" data-title="Steradiaan" data-language-autonym="Eesti" data-language-local-name="Estnisch" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Estereorradian" title="Estereorradian – Baskisch" lang="eu" hreflang="eu" data-title="Estereorradian" data-language-autonym="Euskara" data-language-local-name="Baskisch" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A7%D8%B3%D8%AA%D8%B1%D8%A7%D8%AF%DB%8C%D8%A7%D9%86" title="استرادیان – Persisch" lang="fa" hreflang="fa" data-title="استرادیان" data-language-autonym="فارسی" data-language-local-name="Persisch" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Steradiaani" title="Steradiaani – Finnisch" lang="fi" hreflang="fi" data-title="Steradiaani" data-language-autonym="Suomi" data-language-local-name="Finnisch" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/St%C3%A9radian" title="Stéradian – Französisch" lang="fr" hreflang="fr" data-title="Stéradian" data-language-autonym="Français" data-language-local-name="Französisch" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Stearaidian" title="Stearaidian – Irisch" lang="ga" hreflang="ga" data-title="Stearaidian" data-language-autonym="Gaeilge" data-language-local-name="Irisch" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Estereorradi%C3%A1n" title="Estereorradián – Galicisch" lang="gl" hreflang="gl" data-title="Estereorradián" data-language-autonym="Galego" data-language-local-name="Galicisch" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A1%D7%98%D7%A8%D7%93%D7%99%D7%90%D7%9F" title="סטרדיאן – Hebräisch" lang="he" hreflang="he" data-title="סטרדיאן" data-language-autonym="עברית" data-language-local-name="Hebräisch" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B8%E0%A5%8D%E0%A4%9F%E0%A5%87%E0%A4%B0%E0%A5%87%E0%A4%A1%E0%A4%BF%E0%A4%AF%E0%A4%A8" title="स्टेरेडियन – Hindi" lang="hi" hreflang="hi" data-title="स्टेरेडियन" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Steradijan" title="Steradijan – Kroatisch" lang="hr" hreflang="hr" data-title="Steradijan" data-language-autonym="Hrvatski" data-language-local-name="Kroatisch" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Szteradi%C3%A1n" title="Szteradián – Ungarisch" lang="hu" hreflang="hu" data-title="Szteradián" data-language-autonym="Magyar" data-language-local-name="Ungarisch" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8D%D5%BF%D5%A5%D5%BC%D5%A1%D5%A4%D5%AB%D5%A1%D5%B6" title="Ստեռադիան – Armenisch" lang="hy" hreflang="hy" data-title="Ստեռադիան" data-language-autonym="Հայերեն" data-language-local-name="Armenisch" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Steradiano" title="Steradiano – Interlingua" lang="ia" hreflang="ia" data-title="Steradiano" data-language-autonym="Interlingua" data-language-local-name="Interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Steradian" title="Steradian – Indonesisch" lang="id" hreflang="id" data-title="Steradian" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesisch" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Steradiante" title="Steradiante – Italienisch" lang="it" hreflang="it" data-title="Steradiante" data-language-autonym="Italiano" data-language-local-name="Italienisch" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%B9%E3%83%86%E3%83%A9%E3%82%B8%E3%82%A2%E3%83%B3" title="ステラジアン – Japanisch" lang="ja" hreflang="ja" data-title="ステラジアン" data-language-autonym="日本語" data-language-local-name="Japanisch" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A1%E1%83%A2%E1%83%94%E1%83%A0%E1%83%90%E1%83%93%E1%83%98%E1%83%90%E1%83%9C%E1%83%98" title="სტერადიანი – Georgisch" lang="ka" hreflang="ka" data-title="სტერადიანი" data-language-autonym="ქართული" data-language-local-name="Georgisch" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A1%D1%82%D0%B5%D1%80%D0%B0%D0%B4%D0%B8%D0%B0%D0%BD" title="Стерадиан – Kasachisch" lang="kk" hreflang="kk" data-title="Стерадиан" data-language-autonym="Қазақша" data-language-local-name="Kasachisch" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%8A%A4%ED%85%8C%EB%9D%BC%EB%94%94%EC%95%88" title="스테라디안 – Koreanisch" lang="ko" hreflang="ko" data-title="스테라디안" data-language-autonym="한국어" data-language-local-name="Koreanisch" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Steradiant" title="Steradiant – Luxemburgisch" lang="lb" hreflang="lb" data-title="Steradiant" data-language-autonym="Lëtzebuergesch" data-language-local-name="Luxemburgisch" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Steradianas" title="Steradianas – Litauisch" lang="lt" hreflang="lt" data-title="Steradianas" data-language-autonym="Lietuvių" data-language-local-name="Litauisch" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Steradi%C4%81ns" title="Steradiāns – Lettisch" lang="lv" hreflang="lv" data-title="Steradiāns" data-language-autonym="Latviešu" data-language-local-name="Lettisch" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A1%D1%82%D0%B5%D1%80%D0%B0%D0%B4%D0%B8%D1%98%D0%B0%D0%BD" title="Стерадијан – Mazedonisch" lang="mk" hreflang="mk" data-title="Стерадијан" data-language-autonym="Македонски" data-language-local-name="Mazedonisch" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%B8%E0%B5%8D%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B5%86%E0%B4%B1%E0%B4%BE%E0%B4%A1%E0%B4%BF%E0%B4%AF%E0%B5%BB" title="സ്റ്റെറാഡിയൻ – Malayalam" lang="ml" hreflang="ml" data-title="സ്റ്റെറാഡിയൻ" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%A1%D1%82%D0%B5%D1%80%D0%B0%D0%B4%D0%B8%D0%B0%D0%BD" title="Стерадиан – Mongolisch" lang="mn" hreflang="mn" data-title="Стерадиан" data-language-autonym="Монгол" data-language-local-name="Mongolisch" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Steradian" title="Steradian – Malaiisch" lang="ms" hreflang="ms" data-title="Steradian" data-language-autonym="Bahasa Melayu" data-language-local-name="Malaiisch" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Steradiaal" title="Steradiaal – Niederländisch" lang="nl" hreflang="nl" data-title="Steradiaal" data-language-autonym="Nederlands" data-language-local-name="Niederländisch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Steradian" title="Steradian – Norwegisch (Nynorsk)" lang="nn" hreflang="nn" data-title="Steradian" data-language-autonym="Norsk nynorsk" data-language-local-name="Norwegisch (Nynorsk)" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Steradian" title="Steradian – Norwegisch (Bokmål)" lang="nb" hreflang="nb" data-title="Steradian" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegisch (Bokmål)" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Estereoradian" title="Estereoradian – Okzitanisch" lang="oc" hreflang="oc" data-title="Estereoradian" data-language-autonym="Occitan" data-language-local-name="Okzitanisch" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Steradian" title="Steradian – Polnisch" lang="pl" hreflang="pl" data-title="Steradian" data-language-autonym="Polski" data-language-local-name="Polnisch" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Sterajant" title="Sterajant – Piemontesisch" lang="pms" hreflang="pms" data-title="Sterajant" data-language-autonym="Piemontèis" data-language-local-name="Piemontesisch" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Esferorradiano" title="Esferorradiano – Portugiesisch" lang="pt" hreflang="pt" data-title="Esferorradiano" data-language-autonym="Português" data-language-local-name="Portugiesisch" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Steradian" title="Steradian – Rumänisch" lang="ro" hreflang="ro" data-title="Steradian" data-language-autonym="Română" data-language-local-name="Rumänisch" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A1%D1%82%D0%B5%D1%80%D0%B0%D0%B4%D0%B8%D0%B0%D0%BD" title="Стерадиан – Russisch" lang="ru" hreflang="ru" data-title="Стерадиан" data-language-autonym="Русский" data-language-local-name="Russisch" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Steradianti" title="Steradianti – Sizilianisch" lang="scn" hreflang="scn" data-title="Steradianti" data-language-autonym="Sicilianu" data-language-local-name="Sizilianisch" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Steradijan" title="Steradijan – Serbokroatisch" lang="sh" hreflang="sh" data-title="Steradijan" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbokroatisch" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B7%83%E0%B7%8A%E0%B6%A7%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B7%9A%E0%B6%A9%E0%B7%92%E0%B6%BA%E0%B6%B1%E0%B6%BA" title="ස්ට්‍රේඩියනය – Singhalesisch" lang="si" hreflang="si" data-title="ස්ට්‍රේඩියනය" data-language-autonym="සිංහල" data-language-local-name="Singhalesisch" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Steradian" title="Steradian – einfaches Englisch" lang="en-simple" hreflang="en-simple" data-title="Steradian" data-language-autonym="Simple English" data-language-local-name="einfaches Englisch" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Steradi%C3%A1n" title="Steradián – Slowakisch" lang="sk" hreflang="sk" data-title="Steradián" data-language-autonym="Slovenčina" data-language-local-name="Slowakisch" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Steradian" title="Steradian – Slowenisch" lang="sl" hreflang="sl" data-title="Steradian" data-language-autonym="Slovenščina" data-language-local-name="Slowenisch" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A1%D1%82%D0%B5%D1%80%D0%B0%D0%B4%D0%B8%D1%98%D0%B0%D0%BD" title="Стерадијан – Serbisch" lang="sr" hreflang="sr" data-title="Стерадијан" data-language-autonym="Српски / srpski" data-language-local-name="Serbisch" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Steradian" title="Steradian – Schwedisch" lang="sv" hreflang="sv" data-title="Steradian" data-language-autonym="Svenska" data-language-local-name="Schwedisch" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%A4%E0%AE%BF%E0%AE%A3%E0%AF%8D%E0%AE%AE%E0%AE%B5%E0%AE%BE%E0%AE%B0%E0%AF%88%E0%AE%AF%E0%AE%A9%E0%AF%8D" title="திண்மவாரையன் – Tamil" lang="ta" hreflang="ta" data-title="திண்மவாரையன்" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AA%E0%B9%80%E0%B8%95%E0%B8%AD%E0%B9%80%E0%B8%A3%E0%B9%80%E0%B8%94%E0%B8%B5%E0%B8%A2%E0%B8%99" title="สเตอเรเดียน – Thailändisch" lang="th" hreflang="th" data-title="สเตอเรเดียน" data-language-autonym="ไทย" data-language-local-name="Thailändisch" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Steradyan" title="Steradyan – Türkisch" lang="tr" hreflang="tr" data-title="Steradyan" data-language-autonym="Türkçe" data-language-local-name="Türkisch" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A1%D1%82%D0%B5%D1%80%D0%B0%D0%B4%D1%96%D0%B0%D0%BD" title="Стерадіан – Ukrainisch" lang="uk" hreflang="uk" data-title="Стерадіан" data-language-autonym="Українська" data-language-local-name="Ukrainisch" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%B3%D9%B9%D8%B1%DB%8C%DA%88%DB%8C%D9%86" title="سٹریڈین – Urdu" lang="ur" hreflang="ur" data-title="سٹریڈین" data-language-autonym="اردو" data-language-local-name="Urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Steradian" title="Steradian – Usbekisch" lang="uz" hreflang="uz" data-title="Steradian" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Usbekisch" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Steradian" title="Steradian – Vietnamesisch" lang="vi" hreflang="vi" data-title="Steradian" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamesisch" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%90%83%E9%9D%A2%E5%BA%A6" title="球面度 – Wu" lang="wuu" hreflang="wuu" data-title="球面度" data-language-autonym="吴语" data-language-local-name="Wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%90%83%E9%9D%A2%E5%BA%A6" title="球面度 – Chinesisch" lang="zh" hreflang="zh" data-title="球面度" data-language-autonym="中文" data-language-local-name="Chinesisch" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%90%83%E9%9D%A2%E5%BA%A6" title="球面度 – Kantonesisch" lang="yue" hreflang="yue" data-title="球面度" data-language-autonym="粵語" data-language-local-name="Kantonesisch" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q177612#sitelinks-wikipedia" title="Links auf Artikel in anderen Sprachen 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