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for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">个人工具</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="用户菜单" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/?utm_source=donate&utm_medium=sidebar&utm_campaign=spontaneous&uselang=zh-hans"><span>资助维基百科</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:%E5%88%9B%E5%BB%BA%E8%B4%A6%E6%88%B7&returnto=%E5%85%89%E5%B9%B4" title="我们推荐您创建账号并登录，但这不是强制性的"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>创建账号</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:%E7%94%A8%E6%88%B7%E7%99%BB%E5%BD%95&returnto=%E5%85%89%E5%B9%B4" title="建议你登录，尽管并非必须。[o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>登录</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> 未登录编辑者的页面 <a href="/wiki/Help:%E6%96%B0%E6%89%8B%E5%85%A5%E9%97%A8" aria-label="了解有关编辑的更多信息"><span>了解详情</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:%E6%88%91%E7%9A%84%E8%B4%A1%E7%8C%AE" title="来自此IP地址的编辑列表[y]" accesskey="y"><span>贡献</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:%E6%88%91%E7%9A%84%E8%AE%A8%E8%AE%BA%E9%A1%B5" title="对于来自此IP地址编辑的讨论[n]" accesskey="n"><span>讨论</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="站点"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="目录" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">目录</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">移至侧栏</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">隐藏</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">序言</div> </a> </li> <li id="toc-公式" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#公式"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>公式</span> </div> </a> <ul id="toc-公式-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-比較" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#比較"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>比較</span> </div> </a> <ul id="toc-比較-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-歷史" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#歷史"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>歷史</span> </div> </a> <ul id="toc-歷史-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-參見" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#參見"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>參見</span> </div> </a> <ul id="toc-參見-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-參考來源" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#參考來源"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>參考來源</span> </div> </a> <ul id="toc-參考來源-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-参考书目" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#参考书目"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>参考书目</span> </div> </a> <ul id="toc-参考书目-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="目录" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="开关目录" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">开关目录</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">光年</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="前往另一种语言写成的文章。147种语言可用" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-147" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">147种语言</span> </label> <div class="vector-dropdown-content"> <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/Ligjaar" title="Ligjaar – 南非荷兰语" lang="af" hreflang="af" data-title="Ligjaar" data-language-autonym="Afrikaans" data-language-local-name="南非荷兰语" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Lichtjahr" title="Lichtjahr – 瑞士德语" lang="gsw" hreflang="gsw" data-title="Lichtjahr" data-language-autonym="Alemannisch" data-language-local-name="瑞士德语" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-am mw-list-item"><a href="https://am.wikipedia.org/wiki/%E1%8B%A8%E1%89%A5%E1%88%AD%E1%88%83%E1%8A%95_%E1%8B%93%E1%88%98%E1%89%B5" title="የብርሃን ዓመት – 阿姆哈拉语" lang="am" hreflang="am" data-title="የብርሃን ዓመት" data-language-autonym="አማርኛ" data-language-local-name="阿姆哈拉语" class="interlanguage-link-target"><span>አማርኛ</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Anyo_luz" title="Anyo luz – 阿拉贡语" lang="an" hreflang="an" data-title="Anyo luz" data-language-autonym="Aragonés" data-language-local-name="阿拉贡语" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-ang mw-list-item"><a href="https://ang.wikipedia.org/wiki/L%C4%93ohtg%C4%93ar" title="Lēohtgēar – 古英语" lang="ang" hreflang="ang" data-title="Lēohtgēar" data-language-autonym="Ænglisc" data-language-local-name="古英语" class="interlanguage-link-target"><span>Ænglisc</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B3%D9%86%D8%A9_%D8%B6%D9%88%D8%A6%D9%8A%D8%A9" title="سنة ضوئية – 阿拉伯语" lang="ar" hreflang="ar" data-title="سنة ضوئية" data-language-autonym="العربية" data-language-local-name="阿拉伯语" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ary mw-list-item"><a href="https://ary.wikipedia.org/wiki/%D8%B3%D9%86%D8%A9_%D8%B6%D9%88%D8%A6%D9%8A%D8%A9" title="سنة ضوئية – 摩洛哥阿拉伯文" lang="ary" hreflang="ary" data-title="سنة ضوئية" data-language-autonym="الدارجة" data-language-local-name="摩洛哥阿拉伯文" class="interlanguage-link-target"><span>الدارجة</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%B3%D9%86%D8%A9_%D9%86%D9%88%D8%B1" title="سنة نور – 埃及阿拉伯文" lang="arz" hreflang="arz" data-title="سنة نور" data-language-autonym="مصرى" data-language-local-name="埃及阿拉伯文" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%86%E0%A6%B2%E0%A7%8B%E0%A6%95-%E0%A6%AC%E0%A7%B0%E0%A7%8D%E0%A6%B7" title="আলোক-বৰ্ষ – 阿萨姆语" lang="as" hreflang="as" data-title="আলোক-বৰ্ষ" data-language-autonym="অসমীয়া" data-language-local-name="阿萨姆语" class="interlanguage-link-target"><span>অসমীয়া</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/A%C3%B1u_lluz" title="Añu lluz – 阿斯图里亚斯语" lang="ast" hreflang="ast" data-title="Añu lluz" data-language-autonym="Asturianu" data-language-local-name="阿斯图里亚斯语" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/%C4%B0%C5%9F%C4%B1q_ili" title="İşıq ili – 阿塞拜疆语" lang="az" hreflang="az" data-title="İşıq ili" data-language-autonym="Azərbaycanca" data-language-local-name="阿塞拜疆语" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%A7%DB%8C%D8%B4%DB%8C%D9%82_%D8%A7%DB%8C%D9%84%DB%8C" title="ایشیق ایلی – South Azerbaijani" lang="azb" hreflang="azb" data-title="ایشیق ایلی" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A1%D0%B2%D0%B5%D1%82%D0%BB%D0%B0%D0%B2%D1%8B_%D0%B3%D0%BE%D0%B4" title="Светлавы год – 白俄罗斯语" lang="be" hreflang="be" data-title="Светлавы год" data-language-autonym="Беларуская" data-language-local-name="白俄罗斯语" 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%8C%D0%B2%D0%B5%D1%82%D0%BB%D0%B0%D0%B2%D1%8B_%D0%B3%D0%BE%D0%B4" title="Сьветлавы год – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Сьветлавы год" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" 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%D0%B2%D0%B5%D1%82%D0%BB%D0%B8%D0%BD%D0%BD%D0%B0_%D0%B3%D0%BE%D0%B4%D0%B8%D0%BD%D0%B0" title="Светлинна година – 保加利亚语" lang="bg" hreflang="bg" data-title="Светлинна година" data-language-autonym="Български" data-language-local-name="保加利亚语" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%95%E0%A4%BE%E0%A4%B6-%E0%A4%AC%E0%A4%B0%E0%A4%BF%E0%A4%B8" title="प्रकाश-बरिस – Bhojpuri" lang="bh" hreflang="bh" data-title="प्रकाश-बरिस" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%86%E0%A6%B2%E0%A7%8B%E0%A6%95_%E0%A6%AC%E0%A6%B0%E0%A7%8D%E0%A6%B7" title="আলোক বর্ষ – 孟加拉语" lang="bn" hreflang="bn" data-title="আলোক বর্ষ" data-language-autonym="বাংলা" data-language-local-name="孟加拉语" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Bloavezh-goulo%C3%B9" title="Bloavezh-gouloù – 布列塔尼语" lang="br" hreflang="br" data-title="Bloavezh-gouloù" data-language-autonym="Brezhoneg" data-language-local-name="布列塔尼语" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Svjetlosna_godina" title="Svjetlosna godina – 波斯尼亚语" lang="bs" hreflang="bs" data-title="Svjetlosna godina" data-language-autonym="Bosanski" data-language-local-name="波斯尼亚语" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Any_llum" title="Any llum – 加泰罗尼亚语" lang="ca" hreflang="ca" data-title="Any llum" data-language-autonym="Català" data-language-local-name="加泰罗尼亚语" 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%A7%DA%B5%DB%8C_%DA%95%D9%88%D9%88%D9%86%D8%A7%DA%A9%DB%8C" title="ساڵی ڕووناکی – 中库尔德语" lang="ckb" hreflang="ckb" data-title="ساڵی ڕووناکی" data-language-autonym="کوردی" data-language-local-name="中库尔德语" 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/Sv%C4%9Bteln%C3%BD_rok" title="Světelný rok – 捷克语" lang="cs" hreflang="cs" data-title="Světelný rok" data-language-autonym="Čeština" data-language-local-name="捷克语" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Blwyddyn_golau" title="Blwyddyn golau – 威尔士语" lang="cy" hreflang="cy" data-title="Blwyddyn golau" data-language-autonym="Cymraeg" data-language-local-name="威尔士语" 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/Lys%C3%A5r" title="Lysår – 丹麦语" lang="da" hreflang="da" data-title="Lysår" data-language-autonym="Dansk" data-language-local-name="丹麦语" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Lichtjahr" title="Lichtjahr – 德语" lang="de" hreflang="de" data-title="Lichtjahr" data-language-autonym="Deutsch" data-language-local-name="德语" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-diq mw-list-item"><a href="https://diq.wikipedia.org/wiki/Serra_ro%C5%9Fti" title="Serra roşti – Zazaki" lang="diq" hreflang="diq" data-title="Serra roşti" data-language-autonym="Zazaki" data-language-local-name="Zazaki" class="interlanguage-link-target"><span>Zazaki</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%88%CF%84%CE%BF%CF%82_%CF%86%CF%89%CF%84%CF%8C%CF%82" title="Έτος φωτός – 希腊语" lang="el" hreflang="el" data-title="Έτος φωτός" data-language-autonym="Ελληνικά" data-language-local-name="希腊语" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-eml mw-list-item"><a href="https://eml.wikipedia.org/wiki/An_lu%C5%9B" title="An luś – Emiliano-Romagnolo" lang="egl" hreflang="egl" data-title="An luś" data-language-autonym="Emiliàn e rumagnòl" data-language-local-name="Emiliano-Romagnolo" class="interlanguage-link-target"><span>Emiliàn e rumagnòl</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Light-year" title="Light-year – 英语" lang="en" hreflang="en" data-title="Light-year" data-language-autonym="English" data-language-local-name="英语" 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/Lumjaro" title="Lumjaro – 世界语" lang="eo" hreflang="eo" data-title="Lumjaro" data-language-autonym="Esperanto" data-language-local-name="世界语" 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/A%C3%B1o_luz" title="Año luz – 西班牙语" lang="es" hreflang="es" data-title="Año luz" data-language-autonym="Español" data-language-local-name="西班牙语" 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/Valgusaasta" title="Valgusaasta – 爱沙尼亚语" lang="et" hreflang="et" data-title="Valgusaasta" data-language-autonym="Eesti" data-language-local-name="爱沙尼亚语" 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/Argi-urte" title="Argi-urte – 巴斯克语" lang="eu" hreflang="eu" data-title="Argi-urte" data-language-autonym="Euskara" data-language-local-name="巴斯克语" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-ext mw-list-item"><a href="https://ext.wikipedia.org/wiki/A%C3%B1u_lus" title="Añu lus – 埃斯特雷馬杜拉文" lang="ext" hreflang="ext" data-title="Añu lus" data-language-autonym="Estremeñu" data-language-local-name="埃斯特雷馬杜拉文" class="interlanguage-link-target"><span>Estremeñu</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B3%D8%A7%D9%84_%D9%86%D9%88%D8%B1%DB%8C" title="سال نوری – 波斯语" lang="fa" hreflang="fa" data-title="سال نوری" data-language-autonym="فارسی" data-language-local-name="波斯语" 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/Valovuosi" title="Valovuosi – 芬兰语" lang="fi" hreflang="fi" data-title="Valovuosi" data-language-autonym="Suomi" data-language-local-name="芬兰语" 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/Ann%C3%A9e-lumi%C3%A8re" title="Année-lumière – 法语" lang="fr" hreflang="fr" data-title="Année-lumière" data-language-autonym="Français" data-language-local-name="法语" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Laachtjuar" title="Laachtjuar – 北弗里西亚语" lang="frr" hreflang="frr" data-title="Laachtjuar" data-language-autonym="Nordfriisk" data-language-local-name="北弗里西亚语" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-fur mw-list-item"><a href="https://fur.wikipedia.org/wiki/An_l%C3%BBs" title="An lûs – 弗留利语" lang="fur" hreflang="fur" data-title="An lûs" data-language-autonym="Furlan" data-language-local-name="弗留利语" class="interlanguage-link-target"><span>Furlan</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Ljochtjier" title="Ljochtjier – 西弗里西亚语" lang="fy" hreflang="fy" data-title="Ljochtjier" data-language-autonym="Frysk" data-language-local-name="西弗里西亚语" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Solasbhliain" title="Solasbhliain – 爱尔兰语" lang="ga" hreflang="ga" data-title="Solasbhliain" data-language-autonym="Gaeilge" data-language-local-name="爱尔兰语" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gan mw-list-item"><a href="https://gan.wikipedia.org/wiki/%E5%85%89%E5%B9%B4" title="光年 – 赣语" lang="gan" hreflang="gan" data-title="光年" data-language-autonym="贛語" data-language-local-name="赣语" class="interlanguage-link-target"><span>贛語</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Ano_luz" title="Ano luz – 加利西亚语" lang="gl" hreflang="gl" data-title="Ano luz" data-language-autonym="Galego" data-language-local-name="加利西亚语" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gu mw-list-item"><a href="https://gu.wikipedia.org/wiki/%E0%AA%AA%E0%AB%8D%E0%AA%B0%E0%AA%95%E0%AA%BE%E0%AA%B6%E0%AA%B5%E0%AA%B0%E0%AB%8D%E0%AA%B7" title="પ્રકાશવર્ષ – 古吉拉特语" lang="gu" hreflang="gu" data-title="પ્રકાશવર્ષ" data-language-autonym="ગુજરાતી" data-language-local-name="古吉拉特语" class="interlanguage-link-target"><span>ગુજરાતી</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A9%D7%A0%D7%AA_%D7%90%D7%95%D7%A8" title="שנת אור – 希伯来语" lang="he" hreflang="he" data-title="שנת אור" data-language-autonym="עברית" data-language-local-name="希伯来语" 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%AA%E0%A5%8D%E0%A4%B0%E0%A4%95%E0%A4%BE%E0%A4%B6-%E0%A4%B5%E0%A4%B0%E0%A5%8D%E0%A4%B7" title="प्रकाश-वर्ष – 印地语" lang="hi" hreflang="hi" data-title="प्रकाश-वर्ष" data-language-autonym="हिन्दी" data-language-local-name="印地语" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hif mw-list-item"><a href="https://hif.wikipedia.org/wiki/Prakash_saal" title="Prakash saal – 斐濟印地文" lang="hif" hreflang="hif" data-title="Prakash saal" data-language-autonym="Fiji Hindi" data-language-local-name="斐濟印地文" class="interlanguage-link-target"><span>Fiji Hindi</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Svjetlosna_godina" title="Svjetlosna godina – 克罗地亚语" lang="hr" hreflang="hr" data-title="Svjetlosna godina" data-language-autonym="Hrvatski" data-language-local-name="克罗地亚语" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Ane-limy%C3%A8" title="Ane-limyè – 海地克里奥尔语" lang="ht" hreflang="ht" data-title="Ane-limyè" data-language-autonym="Kreyòl ayisyen" data-language-local-name="海地克里奥尔语" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/F%C3%A9ny%C3%A9v" title="Fényév – 匈牙利语" lang="hu" hreflang="hu" data-title="Fényév" data-language-autonym="Magyar" data-language-local-name="匈牙利语" 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/%D4%BC%D5%B8%D6%82%D5%BD%D5%A1%D5%B5%D5%AB%D5%B6_%D5%BF%D5%A1%D6%80%D5%AB" title="Լուսային տարի – 亚美尼亚语" lang="hy" hreflang="hy" data-title="Լուսային տարի" data-language-autonym="Հայերեն" data-language-local-name="亚美尼亚语" 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/Anno_luminal" title="Anno luminal – 国际语" lang="ia" hreflang="ia" data-title="Anno luminal" data-language-autonym="Interlingua" data-language-local-name="国际语" 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/Tahun_cahaya" title="Tahun cahaya – 印度尼西亚语" lang="id" hreflang="id" data-title="Tahun cahaya" data-language-autonym="Bahasa Indonesia" data-language-local-name="印度尼西亚语" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Lumyaro" title="Lumyaro – 伊多语" lang="io" hreflang="io" data-title="Lumyaro" data-language-autonym="Ido" data-language-local-name="伊多语" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Lj%C3%B3s%C3%A1r" title="Ljósár – 冰岛语" lang="is" hreflang="is" data-title="Ljósár" data-language-autonym="Íslenska" data-language-local-name="冰岛语" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Anno_luce" title="Anno luce – 意大利语" lang="it" hreflang="it" data-title="Anno luce" data-language-autonym="Italiano" data-language-local-name="意大利语" 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/%E5%85%89%E5%B9%B4" title="光年 – 日语" lang="ja" hreflang="ja" data-title="光年" data-language-autonym="日本語" data-language-local-name="日语" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Taun_cahya" title="Taun cahya – 爪哇语" lang="jv" hreflang="jv" data-title="Taun cahya" data-language-autonym="Jawa" data-language-local-name="爪哇语" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A1%E1%83%98%E1%83%9C%E1%83%90%E1%83%97%E1%83%9A%E1%83%98%E1%83%A1_%E1%83%AC%E1%83%94%E1%83%9A%E1%83%98%E1%83%AC%E1%83%90%E1%83%93%E1%83%98" title="სინათლის წელიწადი – 格鲁吉亚语" lang="ka" hreflang="ka" data-title="სინათლის წელიწადი" data-language-autonym="ქართული" data-language-local-name="格鲁吉亚语" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/Afawatay" title="Afawatay – 卡拜尔语" lang="kab" hreflang="kab" data-title="Afawatay" data-language-autonym="Taqbaylit" data-language-local-name="卡拜尔语" class="interlanguage-link-target"><span>Taqbaylit</span></a></li><li class="interlanguage-link interwiki-kbp mw-list-item"><a href="https://kbp.wikipedia.org/wiki/M%CA%8And%CA%8As%CA%8A%CA%8A_p%C9%A9na%C9%A3" title="Mʊndʊsʊʊ pɩnaɣ – Kabiye" lang="kbp" hreflang="kbp" data-title="Mʊndʊsʊʊ pɩnaɣ" data-language-autonym="Kabɩyɛ" data-language-local-name="Kabiye" class="interlanguage-link-target"><span>Kabɩyɛ</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%96%D0%B0%D1%80%D1%8B%D2%9B_%D0%B6%D1%8B%D0%BB%D1%8B" title="Жарық жылы – 哈萨克语" lang="kk" hreflang="kk" data-title="Жарық жылы" data-language-autonym="Қазақша" data-language-local-name="哈萨克语" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-km mw-list-item"><a href="https://km.wikipedia.org/wiki/%E1%9E%86%E1%9F%92%E1%9E%93%E1%9E%B6%E1%9F%86%E1%9E%96%E1%9E%93%E1%9F%92%E1%9E%9B%E1%9E%BA" title="ឆ្នាំពន្លឺ – 高棉语" lang="km" hreflang="km" data-title="ឆ្នាំពន្លឺ" data-language-autonym="ភាសាខ្មែរ" data-language-local-name="高棉语" class="interlanguage-link-target"><span>ភាសាខ្មែរ</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%9C%E0%B3%8D%E0%B2%AF%E0%B3%8B%E0%B2%A4%E0%B2%BF%E0%B2%B0%E0%B3%8D%E0%B2%B5%E0%B2%B0%E0%B3%8D%E0%B2%B7" title="ಜ್ಯೋತಿರ್ವರ್ಷ – 卡纳达语" lang="kn" hreflang="kn" data-title="ಜ್ಯೋತಿರ್ವರ್ಷ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="卡纳达语" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EA%B4%91%EB%85%84" title="광년 – 韩语" lang="ko" hreflang="ko" data-title="광년" data-language-autonym="한국어" data-language-local-name="韩语" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Sala_t%C3%AEr%C3%AAj%C3%AA" title="Sala tîrêjê – 库尔德语" lang="ku" hreflang="ku" data-title="Sala tîrêjê" data-language-autonym="Kurdî" data-language-local-name="库尔德语" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-kw mw-list-item"><a href="https://kw.wikipedia.org/wiki/Bledhen_wolow" title="Bledhen wolow – 康沃尔语" lang="kw" hreflang="kw" data-title="Bledhen wolow" data-language-autonym="Kernowek" data-language-local-name="康沃尔语" class="interlanguage-link-target"><span>Kernowek</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%96%D0%B0%D1%80%D1%8B%D0%BA_%D0%B6%D1%8B%D0%BB%D1%8B" title="Жарык жылы – 柯尔克孜语" lang="ky" hreflang="ky" data-title="Жарык жылы" data-language-autonym="Кыргызча" data-language-local-name="柯尔克孜语" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Annus_luce_mensus" title="Annus luce mensus – 拉丁语" lang="la" hreflang="la" data-title="Annus luce mensus" data-language-autonym="Latina" data-language-local-name="拉丁语" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Liichtjoer" title="Liichtjoer – 卢森堡语" lang="lb" hreflang="lb" data-title="Liichtjoer" data-language-autonym="Lëtzebuergesch" data-language-local-name="卢森堡语" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lfn mw-list-item"><a href="https://lfn.wikipedia.org/wiki/Anio_de_lus" title="Anio de lus – 新共同語言" lang="lfn" hreflang="lfn" data-title="Anio de lus" data-language-autonym="Lingua Franca Nova" data-language-local-name="新共同語言" class="interlanguage-link-target"><span>Lingua Franca Nova</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Leechjaor" title="Leechjaor – 林堡语" lang="li" hreflang="li" data-title="Leechjaor" data-language-autonym="Limburgs" data-language-local-name="林堡语" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lij mw-list-item"><a href="https://lij.wikipedia.org/wiki/Ann%C3%B4_l%C3%BCxe" title="Annô lüxe – 利古里亚语" lang="lij" hreflang="lij" data-title="Annô lüxe" data-language-autonym="Ligure" data-language-local-name="利古里亚语" class="interlanguage-link-target"><span>Ligure</span></a></li><li class="interlanguage-link interwiki-lld mw-list-item"><a href="https://lld.wikipedia.org/wiki/Ann_lum" title="Ann lum – Ladin" lang="lld" hreflang="lld" data-title="Ann lum" data-language-autonym="Ladin" data-language-local-name="Ladin" class="interlanguage-link-target"><span>Ladin</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/An_l%C3%BCce" title="An lüce – 倫巴底文" lang="lmo" hreflang="lmo" data-title="An lüce" data-language-autonym="Lombard" data-language-local-name="倫巴底文" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lo mw-list-item"><a href="https://lo.wikipedia.org/wiki/%E0%BA%9B%E0%BA%B5%E0%BB%81%E0%BA%AA%E0%BA%87" title="ປີແສງ – 老挝语" lang="lo" hreflang="lo" data-title="ປີແສງ" data-language-autonym="ລາວ" data-language-local-name="老挝语" class="interlanguage-link-target"><span>ລາວ</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/%C5%A0viesmetis" title="Šviesmetis – 立陶宛语" lang="lt" hreflang="lt" data-title="Šviesmetis" data-language-autonym="Lietuvių" data-language-local-name="立陶宛语" 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/Gaismas_gads" title="Gaismas gads – 拉脱维亚语" lang="lv" hreflang="lv" data-title="Gaismas gads" data-language-autonym="Latviešu" data-language-local-name="拉脱维亚语" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wikipedia.org/wiki/Taon-kazavana" title="Taon-kazavana – 马拉加斯语" lang="mg" hreflang="mg" data-title="Taon-kazavana" data-language-autonym="Malagasy" data-language-local-name="马拉加斯语" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A1%D0%B2%D0%B5%D1%82%D0%BB%D0%BE%D1%81%D0%BD%D0%B0_%D0%B3%D0%BE%D0%B4%D0%B8%D0%BD%D0%B0" title="Светлосна година – 马其顿语" lang="mk" hreflang="mk" data-title="Светлосна година" data-language-autonym="Македонски" data-language-local-name="马其顿语" 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%AA%E0%B5%8D%E0%B4%B0%E0%B4%95%E0%B4%BE%E0%B4%B6%E0%B4%B5%E0%B5%BC%E0%B4%B7%E0%B4%82" title="പ്രകാശവർഷം – 马拉雅拉姆语" lang="ml" hreflang="ml" data-title="പ്രകാശവർഷം" data-language-autonym="മലയാളം" data-language-local-name="马拉雅拉姆语" 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%93%D1%8D%D1%80%D0%BB%D0%B8%D0%B9%D0%BD_%D0%B6%D0%B8%D0%BB" title="Гэрлийн жил – 蒙古语" lang="mn" hreflang="mn" data-title="Гэрлийн жил" data-language-autonym="Монгол" data-language-local-name="蒙古语" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-mnw mw-list-item"><a href="https://mnw.wikipedia.org/wiki/%E1%80%9C%E1%80%BB%E1%80%B8-%E1%80%9E%E1%81%9E%E1%80%AC%E1%80%B6" title="လျး-သၞာံ – Mon" lang="mnw" hreflang="mnw" data-title="လျး-သၞာံ" data-language-autonym="ဘာသာမန်" data-language-local-name="Mon" class="interlanguage-link-target"><span>ဘာသာမန်</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%95%E0%A4%BE%E0%A4%B6-%E0%A4%B5%E0%A4%B0%E0%A5%8D%E0%A4%B7" title="प्रकाश-वर्ष – 马拉地语" lang="mr" hreflang="mr" data-title="प्रकाश-वर्ष" data-language-autonym="मराठी" data-language-local-name="马拉地语" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Tahun_cahaya" title="Tahun cahaya – 马来语" lang="ms" hreflang="ms" data-title="Tahun cahaya" data-language-autonym="Bahasa Melayu" data-language-local-name="马来语" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mt mw-list-item"><a href="https://mt.wikipedia.org/wiki/Sena_dawl" title="Sena dawl – 马耳他语" lang="mt" hreflang="mt" data-title="Sena dawl" data-language-autonym="Malti" data-language-local-name="马耳他语" class="interlanguage-link-target"><span>Malti</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%A1%E1%80%9C%E1%80%84%E1%80%BA%E1%80%B8%E1%80%94%E1%80%BE%E1%80%85%E1%80%BA" title="အလင်းနှစ် – 缅甸语" lang="my" hreflang="my" data-title="အလင်းနှစ်" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="缅甸语" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nah mw-list-item"><a href="https://nah.wikipedia.org/wiki/Tl%C4%81hu%C4%ABlxihuitl" title="Tlāhuīlxihuitl – Nahuatl" lang="nah" hreflang="nah" data-title="Tlāhuīlxihuitl" data-language-autonym="Nāhuatl" data-language-local-name="Nahuatl" class="interlanguage-link-target"><span>Nāhuatl</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Lichtjohr" title="Lichtjohr – 低地德语" lang="nds" hreflang="nds" data-title="Lichtjohr" data-language-autonym="Plattdüütsch" data-language-local-name="低地德语" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%95%E0%A4%BE%E0%A4%B6_%E0%A4%B5%E0%A4%B0%E0%A5%8D%E0%A4%B7" title="प्रकाश वर्ष – 尼泊尔语" lang="ne" hreflang="ne" data-title="प्रकाश वर्ष" data-language-autonym="नेपाली" data-language-local-name="尼泊尔语" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Lichtjaar" title="Lichtjaar – 荷兰语" lang="nl" hreflang="nl" data-title="Lichtjaar" data-language-autonym="Nederlands" data-language-local-name="荷兰语" 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/Lys%C3%A5r" title="Lysår – 挪威尼诺斯克语" lang="nn" hreflang="nn" data-title="Lysår" data-language-autonym="Norsk nynorsk" data-language-local-name="挪威尼诺斯克语" 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/Lys%C3%A5r" title="Lysår – 书面挪威语" lang="nb" hreflang="nb" data-title="Lysår" data-language-autonym="Norsk bokmål" data-language-local-name="书面挪威语" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nqo mw-list-item"><a href="https://nqo.wikipedia.org/wiki/%DF%A6%DF%8B%DF%9F%DF%8B%DF%B2-%DF%9B%DF%8A%DF%B2%DF%AD" title="ߦߋߟߋ߲-ߛߊ߲߭ – 西非书面文字" lang="nqo" hreflang="nqo" data-title="ߦߋߟߋ߲-ߛߊ߲߭" data-language-autonym="ߒߞߏ" data-language-local-name="西非书面文字" class="interlanguage-link-target"><span>ߒߞߏ</span></a></li><li class="interlanguage-link interwiki-ny mw-list-item"><a href="https://ny.wikipedia.org/wiki/Chaka_Chowala" title="Chaka Chowala – 齐切瓦语" lang="ny" hreflang="ny" data-title="Chaka Chowala" data-language-autonym="Chi-Chewa" data-language-local-name="齐切瓦语" class="interlanguage-link-target"><span>Chi-Chewa</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Annada_lutz" title="Annada lutz – 奥克语" lang="oc" hreflang="oc" data-title="Annada lutz" data-language-autonym="Occitan" data-language-local-name="奥克语" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-om mw-list-item"><a href="https://om.wikipedia.org/wiki/Wagga_Iffa" title="Wagga Iffa – 奥罗莫语" lang="om" hreflang="om" data-title="Wagga Iffa" data-language-autonym="Oromoo" data-language-local-name="奥罗莫语" class="interlanguage-link-target"><span>Oromoo</span></a></li><li class="interlanguage-link interwiki-or mw-list-item"><a href="https://or.wikipedia.org/wiki/%E0%AC%86%E0%AC%B2%E0%AD%8B%E0%AC%95%E0%AC%AC%E0%AC%B0%E0%AD%8D%E0%AC%B7" title="ଆଲୋକବର୍ଷ – 奥里亚语" lang="or" hreflang="or" data-title="ଆଲୋକବର୍ଷ" data-language-autonym="ଓଡ଼ିଆ" data-language-local-name="奥里亚语" class="interlanguage-link-target"><span>ଓଡ଼ିଆ</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%AA%E0%A9%8D%E0%A8%B0%E0%A8%95%E0%A8%BE%E0%A8%B8%E0%A8%BC-%E0%A8%B8%E0%A8%BE%E0%A8%B2" title="ਪ੍ਰਕਾਸ਼-ਸਾਲ – 旁遮普语" lang="pa" hreflang="pa" data-title="ਪ੍ਰਕਾਸ਼-ਸਾਲ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="旁遮普语" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pap mw-list-item"><a href="https://pap.wikipedia.org/wiki/A%C3%B1a_lus" title="Aña lus – 帕皮阿门托语" lang="pap" hreflang="pap" data-title="Aña lus" data-language-autonym="Papiamentu" data-language-local-name="帕皮阿门托语" class="interlanguage-link-target"><span>Papiamentu</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Rok_%C5%9Bwietlny" title="Rok świetlny – 波兰语" lang="pl" hreflang="pl" data-title="Rok świetlny" data-language-autonym="Polski" data-language-local-name="波兰语" 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/Ann_lus" title="Ann lus – 皮埃蒙特文" lang="pms" hreflang="pms" data-title="Ann lus" data-language-autonym="Piemontèis" data-language-local-name="皮埃蒙特文" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%DA%86%D8%A7%D9%86%DD%A8_%D9%88%D8%B1%DA%BE%D8%A7" title="چانݨ ورھا – Western Punjabi" lang="pnb" hreflang="pnb" data-title="چانݨ ورھا" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/%D9%84%D9%85%D8%B1%DB%8C%D8%B2_%DA%A9%D8%A7%D9%84" title="لمریز کال – 普什图语" lang="ps" hreflang="ps" data-title="لمریز کال" data-language-autonym="پښتو" data-language-local-name="普什图语" class="interlanguage-link-target"><span>پښتو</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Ano-luz" title="Ano-luz – 葡萄牙语" lang="pt" hreflang="pt" data-title="Ano-luz" data-language-autonym="Português" data-language-local-name="葡萄牙语" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Achkiy_wata" title="Achkiy wata – 克丘亚语" lang="qu" hreflang="qu" data-title="Achkiy wata" data-language-autonym="Runa Simi" data-language-local-name="克丘亚语" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/An-lumin%C4%83" title="An-lumină – 罗马尼亚语" lang="ro" hreflang="ro" data-title="An-lumină" data-language-autonym="Română" data-language-local-name="罗马尼亚语" 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%D0%B2%D0%B5%D1%82%D0%BE%D0%B2%D0%BE%D0%B9_%D0%B3%D0%BE%D0%B4" title="Световой год – 俄语" lang="ru" hreflang="ru" data-title="Световой год" data-language-autonym="Русский" data-language-local-name="俄语" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-rue mw-list-item"><a href="https://rue.wikipedia.org/wiki/%D0%A1%D0%B2%D1%96%D1%82%D0%BB%D0%BE%D0%B2%D1%8B%D0%B9_%D1%80%D1%96%D0%BA" title="Світловый рік – 盧森尼亞文" lang="rue" hreflang="rue" data-title="Світловый рік" data-language-autonym="Русиньскый" data-language-local-name="盧森尼亞文" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-sa mw-list-item"><a href="https://sa.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%95%E0%A4%BE%E0%A4%B6%E0%A4%B5%E0%A4%B0%E0%A5%8D%E0%A4%B7%E0%A4%83" title="प्रकाशवर्षः – 梵语" lang="sa" hreflang="sa" data-title="प्रकाशवर्षः" data-language-autonym="संस्कृतम्" data-language-local-name="梵语" class="interlanguage-link-target"><span>संस्कृतम्</span></a></li><li class="interlanguage-link interwiki-sah mw-list-item"><a href="https://sah.wikipedia.org/wiki/%D0%A1%D1%8B%D1%80%D0%B4%D1%8B%D0%BA_%D1%81%D1%8B%D0%BB%D0%B0" title="Сырдык сыла – 萨哈语" lang="sah" hreflang="sah" data-title="Сырдык сыла" data-language-autonym="Саха тыла" data-language-local-name="萨哈语" class="interlanguage-link-target"><span>Саха тыла</span></a></li><li class="interlanguage-link interwiki-sc mw-list-item"><a href="https://sc.wikipedia.org/wiki/Annu_luxi" title="Annu luxi – 萨丁语" lang="sc" hreflang="sc" data-title="Annu luxi" data-language-autonym="Sardu" data-language-local-name="萨丁语" class="interlanguage-link-target"><span>Sardu</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Annu_luci" title="Annu luci – 西西里语" lang="scn" hreflang="scn" data-title="Annu luci" data-language-autonym="Sicilianu" data-language-local-name="西西里语" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Licht-year" title="Licht-year – 苏格兰语" lang="sco" hreflang="sco" data-title="Licht-year" data-language-autonym="Scots" data-language-local-name="苏格兰语" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D9%86%D9%88%D8%B1%D9%8A_%D8%B3%D8%A7%D9%84" title="نوري سال – 信德语" lang="sd" hreflang="sd" data-title="نوري سال" data-language-autonym="سنڌي" data-language-local-name="信德语" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Svjetlosna_godina" title="Svjetlosna godina – 塞尔维亚-克罗地亚语" lang="sh" hreflang="sh" data-title="Svjetlosna godina" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="塞尔维亚-克罗地亚语" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Light_year" title="Light year – Simple English" lang="en-simple" hreflang="en-simple" data-title="Light year" data-language-autonym="Simple English" data-language-local-name="Simple English" 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/Sveteln%C3%BD_rok" title="Svetelný rok – 斯洛伐克语" lang="sk" hreflang="sk" data-title="Svetelný rok" data-language-autonym="Slovenčina" data-language-local-name="斯洛伐克语" 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/Svetlobno_leto" title="Svetlobno leto – 斯洛文尼亚语" lang="sl" hreflang="sl" data-title="Svetlobno leto" data-language-autonym="Slovenščina" data-language-local-name="斯洛文尼亚语" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Sano_Ilays" title="Sano Ilays – 索马里语" lang="so" hreflang="so" data-title="Sano Ilays" data-language-autonym="Soomaaliga" data-language-local-name="索马里语" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Drit%C3%ABviti" title="Dritëviti – 阿尔巴尼亚语" lang="sq" hreflang="sq" data-title="Dritëviti" data-language-autonym="Shqip" data-language-local-name="阿尔巴尼亚语" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A1%D0%B2%D0%B5%D1%82%D0%BB%D0%BE%D1%81%D0%BD%D0%B0_%D0%B3%D0%BE%D0%B4%D0%B8%D0%BD%D0%B0" title="Светлосна година – 塞尔维亚语" lang="sr" hreflang="sr" data-title="Светлосна година" data-language-autonym="Српски / srpski" data-language-local-name="塞尔维亚语" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-stq mw-list-item"><a href="https://stq.wikipedia.org/wiki/Luchtjier" title="Luchtjier – 沙特菲士蘭文" lang="stq" hreflang="stq" data-title="Luchtjier" data-language-autonym="Seeltersk" data-language-local-name="沙特菲士蘭文" class="interlanguage-link-target"><span>Seeltersk</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Ljus%C3%A5r" title="Ljusår – 瑞典语" lang="sv" hreflang="sv" data-title="Ljusår" data-language-autonym="Svenska" data-language-local-name="瑞典语" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Mwakanuru" title="Mwakanuru – 斯瓦希里语" lang="sw" hreflang="sw" data-title="Mwakanuru" data-language-autonym="Kiswahili" data-language-local-name="斯瓦希里语" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%92%E0%AE%B3%E0%AE%BF%E0%AE%AF%E0%AE%BE%E0%AE%A3%E0%AF%8D%E0%AE%9F%E0%AF%81" title="ஒளியாண்டு – 泰米尔语" lang="ta" hreflang="ta" data-title="ஒளியாண்டு" data-language-autonym="தமிழ்" data-language-local-name="泰米尔语" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%95%E0%B0%BE%E0%B0%82%E0%B0%A4%E0%B0%BF_%E0%B0%B8%E0%B0%82%E0%B0%B5%E0%B0%A4%E0%B1%8D%E0%B0%B8%E0%B0%B0%E0%B0%82" title="కాంతి సంవత్సరం – 泰卢固语" lang="te" hreflang="te" data-title="కాంతి సంవత్సరం" data-language-autonym="తెలుగు" data-language-local-name="泰卢固语" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%9B%E0%B8%B5%E0%B9%81%E0%B8%AA%E0%B8%87" title="ปีแสง – 泰语" lang="th" hreflang="th" data-title="ปีแสง" data-language-autonym="ไทย" data-language-local-name="泰语" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tk mw-list-item"><a href="https://tk.wikipedia.org/wiki/%C3%9Dagtylyk_%C3%BDyly" title="Ýagtylyk ýyly – 土库曼语" lang="tk" hreflang="tk" data-title="Ýagtylyk ýyly" data-language-autonym="Türkmençe" data-language-local-name="土库曼语" class="interlanguage-link-target"><span>Türkmençe</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Sinag-taon" title="Sinag-taon – 他加禄语" lang="tl" hreflang="tl" data-title="Sinag-taon" data-language-autonym="Tagalog" data-language-local-name="他加禄语" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/I%C5%9F%C4%B1k_y%C4%B1l%C4%B1" title="Işık yılı – 土耳其语" lang="tr" hreflang="tr" data-title="Işık yılı" data-language-autonym="Türkçe" data-language-local-name="土耳其语" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%AF%D0%BA%D1%82%D1%8B%D0%BB%D1%8B%D0%BA_%D0%B5%D0%BB%D1%8B" title="Яктылык елы – 鞑靼语" lang="tt" hreflang="tt" data-title="Яктылык елы" data-language-autonym="Татарча / tatarça" data-language-local-name="鞑靼语" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-udm mw-list-item"><a href="https://udm.wikipedia.org/wiki/%D0%AE%D0%B3%D1%8B%D1%82_%D0%B0%D1%80" title="Югыт ар – 乌德穆尔特语" lang="udm" hreflang="udm" data-title="Югыт ар" data-language-autonym="Удмурт" data-language-local-name="乌德穆尔特语" class="interlanguage-link-target"><span>Удмурт</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A1%D0%B2%D1%96%D1%82%D0%BB%D0%BE%D0%B2%D0%B8%D0%B9_%D1%80%D1%96%D0%BA" title="Світловий рік – 乌克兰语" lang="uk" hreflang="uk" data-title="Світловий рік" data-language-autonym="Українська" data-language-local-name="乌克兰语" 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/%D9%86%D9%88%D8%B1%DB%8C_%D8%B3%D8%A7%D9%84" title="نوری سال – 乌尔都语" lang="ur" hreflang="ur" data-title="نوری سال" data-language-autonym="اردو" data-language-local-name="乌尔都语" 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/Yorug%CA%BBlik_yili" title="Yorugʻlik yili – 乌兹别克语" lang="uz" hreflang="uz" data-title="Yorugʻlik yili" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="乌兹别克语" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vec mw-list-item"><a href="https://vec.wikipedia.org/wiki/Ano_%C5%82uze" title="Ano łuze – 威尼斯语" lang="vec" hreflang="vec" data-title="Ano łuze" data-language-autonym="Vèneto" data-language-local-name="威尼斯语" class="interlanguage-link-target"><span>Vèneto</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/N%C4%83m_%C3%A1nh_s%C3%A1ng" title="Năm ánh sáng – 越南语" lang="vi" hreflang="vi" data-title="Năm ánh sáng" data-language-autonym="Tiếng Việt" data-language-local-name="越南语" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-vo mw-list-item"><a href="https://vo.wikipedia.org/wiki/Litayel" title="Litayel – 沃拉普克语" lang="vo" hreflang="vo" data-title="Litayel" data-language-autonym="Volapük" data-language-local-name="沃拉普克语" class="interlanguage-link-target"><span>Volapük</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Tuig-lamrag" title="Tuig-lamrag – 瓦瑞语" lang="war" hreflang="war" data-title="Tuig-lamrag" data-language-autonym="Winaray" data-language-local-name="瓦瑞语" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E5%85%89%E5%B9%B4" title="光年 – 吴语" lang="wuu" hreflang="wuu" data-title="光年" data-language-autonym="吴语" data-language-local-name="吴语" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%A1%E1%83%98%E1%83%9C%E1%83%97%E1%83%94%E1%83%A8_%E1%83%AC%E1%83%90%E1%83%9C%E1%83%90" title="სინთეშ წანა – 明格列爾文" lang="xmf" hreflang="xmf" data-title="სინთეშ წანა" data-language-autonym="მარგალური" data-language-local-name="明格列爾文" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%9C%D7%99%D7%9B%D7%98-%D7%99%D7%90%D7%A8" title="ליכט-יאר – 意第绪语" lang="yi" hreflang="yi" data-title="ליכט-יאר" data-language-autonym="ייִדיש" data-language-local-name="意第绪语" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E5%85%89%E5%B9%B4" title="光年 – 文言文" lang="lzh" hreflang="lzh" data-title="光年" data-language-autonym="文言" data-language-local-name="文言文" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Kong-li%C3%A2n" title="Kong-liân – 闽南语" lang="nan" hreflang="nan" data-title="Kong-liân" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="闽南语" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E5%85%89%E5%B9%B4" title="光年 – 粤语" lang="yue" hreflang="yue" data-title="光年" data-language-autonym="粵語" data-language-local-name="粤语" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zu mw-list-item"><a href="https://zu.wikipedia.org/wiki/Ukukhanyabanga" title="Ukukhanyabanga – 祖鲁语" lang="zu" hreflang="zu" data-title="Ukukhanyabanga" data-language-autonym="IsiZulu" data-language-local-name="祖鲁语" class="interlanguage-link-target"><span>IsiZulu</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/Q531#sitelinks-wikipedia" title="编辑跨语言链接" class="wbc-editpage">编辑链接</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="命名空间"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/%E5%85%89%E5%B9%B4" title="浏览条目正文[c]" accesskey="c"><span>条目</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:%E5%85%89%E5%B9%B4" rel="discussion" 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href="//www.google.com/search?&as_eq=wikipedia&q=%22%E5%85%89%E5%B9%B4%22">"光年"</a> — <a rel="nofollow" class="external text" href="//www.google.com/search?q=%22%E5%85%89%E5%B9%B4%22">网页</a>、<a rel="nofollow" class="external text" href="//www.google.com/search?tbm=nws&q=&as_src=-newswire+-wire+-presswire+-PR+-press+-release+-wikipedia&q=%22%E5%85%89%E5%B9%B4%22">新闻</a>、<a rel="nofollow" class="external text" href="//books.google.com/books?&as_brr=0&as_pub=-icon&q=%22%E5%85%89%E5%B9%B4%22">书籍</a>、<a rel="nofollow" class="external text" href="//scholar.google.com/scholar?&q=%22%E5%85%89%E5%B9%B4%22">学术</a>、<a rel="nofollow" class="external text" href="//www.google.com/search?tbm=isch&safe=off&q=%22%E5%85%89%E5%B9%B4%22">图像</a></span>），以检查网络上是否存在该主题的更多可靠来源（<a href="/wiki/Wikipedia:%E5%8F%AF%E9%9D%A0%E6%9D%A5%E6%BA%90" title="Wikipedia:可靠来源">判定指引</a>）</small></span><span class="hide-when-compact"></span></div></td></tr></tbody></table> <style 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div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}html.skin-theme-clientpref-night .mw-parser-output .infobox td div:not(.notheme)[style]{background:transparent!important;color:var(--color-base,#202122)}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox td div:not(.notheme)[style]{background:transparent!important;color:var(--color-base,#202122)}}html.skin-theme-clientpref-night .mw-parser-output .infobox td div.NavHead:not(.notheme)[style]{background:transparent!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox td div.NavHead:not(.notheme)[style]{background:transparent!important}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox" style="background:;"><tbody><tr><th colspan="2" class="infobox-above">光年</th></tr><tr><th scope="row" class="infobox-label" style=""><span class="nowrap"><a href="/wiki/%E8%AE%A1%E9%87%8F%E5%8D%95%E4%BD%8D%E5%88%B6" title="计量单位制">单位制</a></span></th><td class="infobox-data" style="">天文单位</td></tr><tr><th scope="row" class="infobox-label" style=""><span class="nowrap">物理量名称</span></th><td class="infobox-data" style="">距離</td></tr><tr><th scope="row" class="infobox-label" style=""><span class="nowrap">符号</span></th><td class="infobox-data" style="">ly </td></tr><tr><th colspan="2" class="infobox-header" style="">單位換算 </th></tr><tr class="nowrap"><td><b>1 ly</b></td><td><b>相当于</b></td></tr><tr style="display:none"><th colspan="2"> </th></tr><tr><th scope="row" class="infobox-label" style=""><span class="nowrap">   </span><a href="/wiki/%E7%B1%B3%E5%88%B6" class="mw-redirect" title="米制">公尺制</a>(<a href="/wiki/%E5%9B%BD%E9%99%85%E5%8D%95%E4%BD%8D%E5%88%B6" title="国际单位制">SI</a>)单位</th><td class="infobox-data" style=""><span class="nowrap">   </span><span class="nowrap"><span style="display:none" class="sortkey">7015946070000000000♠</span>9.4607<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>15</sup> <a href="/wiki/%E7%B1%B3_(%E5%96%AE%E4%BD%8D)" class="mw-redirect" title="米 (單位)">米</a></span></td></tr><tr><th scope="row" class="infobox-label" style=""><span class="nowrap">   </span><a href="/wiki/%E8%8B%B1%E5%88%B6" class="mw-redirect" title="英制">英制</a>和<a href="/wiki/%E7%BE%8E%E5%88%B6%E5%8D%95%E4%BD%8D" title="美制单位">美制</a>单位</th><td class="infobox-data" style=""><span class="nowrap">   </span><span class="nowrap"><span style="display:none" class="sortkey">7015946068963840000♠</span>5.8786<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>12</sup> <a href="/wiki/%E8%8B%B1%E9%87%8C" title="英里">mi</a></span></td></tr><tr><th scope="row" class="infobox-label" style=""><span class="nowrap">   </span>天文单位</th><td class="infobox-data" style=""><span class="nowrap">   </span><span class="nowrap"><span style="display:none" class="sortkey">7015946071894093869♠</span>6.3241<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>4</sup> <a href="/wiki/%E5%A4%A9%E6%96%87%E5%96%AE%E4%BD%8D" title="天文單位">AU</a></span><br />   <span class="nowrap"><span style="display:none" class="sortkey">7015946068746477840♠</span>0.3066 <a href="/wiki/%E7%A7%92%E5%B7%AE%E8%B7%9D" title="秒差距">pc</a></span></td></tr></tbody></table> <p><b>光年</b>（英語：<span lang="en">light-year</span>）是長度單位之一，指<a href="/wiki/%E5%85%89" title="光">光</a>在<a href="/wiki/%E7%9C%9F%E7%A9%BA" title="真空">真空</a>中一<a href="/wiki/%E5%84%92%E7%95%A5%E5%B9%B4" title="儒略年">年</a>時間內傳播的距離，大約為9.46兆公里（9.46×10<sup>12</sup><a href="/wiki/%E5%85%AC%E9%87%8C" title="公里">公里</a>或<span class="nowrap"><span style="display:none" class="sortkey">7012588000000000000♠</span>5.88<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>12</sup></span><a href="/wiki/%E8%8B%B1%E9%87%8C" title="英里">英里</a>）。 </p><p>光年一般用於<a href="/wiki/%E5%A4%A9%E6%96%87%E5%AD%B8" title="天文學">天文學</a>中，是用來量長度很長的距離的单位，如<a href="/wiki/%E5%A4%AA%E9%99%BD%E7%B3%BB" class="mw-redirect" title="太陽系">太陽系</a>跟另一<a href="/wiki/%E6%81%86%E6%98%9F" class="mw-redirect" title="恆星">恆星</a>的距離。天文學中另三個常用的單位是<a href="/wiki/%E7%A7%92%E5%B7%AE%E8%B7%9D" title="秒差距">秒差距</a>、<a href="/wiki/%E5%A4%A9%E6%96%87%E5%96%AE%E4%BD%8D" title="天文單位">天文單位</a>與<a href="/wiki/%E5%85%89%E7%A7%92" title="光秒">光秒</a>，一秒差距等於3.26光年，一天文單位=（1AU)為149,597,870,700<a href="/wiki/%E5%85%AC%E5%B0%BA" class="mw-redirect" title="公尺">公尺</a>(149,597,870.7<a href="/wiki/%E5%85%AC%E9%87%8C" title="公里">公里</a>，約149.598<a href="/wiki/%E4%BA%AC%E7%B1%B3" class="mw-redirect" title="京米">京米</a>)，一光秒是光一秒所走的距離為299,792,458公尺(299,792.458公里)。 </p><p>當今世界上最快的飛行器可以達到每秒3.127公里的秒速（2004年11月16日，美國航空暨太空總署（<a href="/wiki/NASA" class="mw-redirect" title="NASA">NASA</a>）的飛機最高速度紀錄是11,260公里/小時）<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>，依照這樣的速度，飛越一光年的距離需要用95,800年。而常見的客機大約是885公里/小時<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>，這樣飛行1光年則需要122萬年。目前人造的最快物體是2016年7月5日抵達<a href="/wiki/%E6%9C%A8%E6%98%9F" title="木星">木星</a>極軌道的<a href="/wiki/%E6%9C%B1%E8%AF%BA%E5%8F%B7" title="朱诺号">朱諾號</a>（2011年8月5日發射升空），最高速度為73.61公里/秒（即約265,000公里/小時），這樣的速度飛越1光年的距離約需要4073年的時間。 </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="公式"><span id=".E5.85.AC.E5.BC.8F"></span>公式</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%85%89%E5%B9%B4&action=edit&section=1" title="编辑章节：公式"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>光年的定義其實就是<a href="/wiki/%E5%85%89%E6%B3%A2" class="mw-redirect" title="光波">光波</a>於真空中傳遞一年所歷經的距離，以<a href="/wiki/%E5%85%89%E9%80%9F" title="光速">光速</a>為基礎（<span class="nowrap"><span style="display:none" class="sortkey">7008299792458000000♠</span>299<span style="margin-left:.25em;">792</span>.458 km/s</span>），乘以一<a href="/wiki/%E5%84%92%E7%95%A5%E5%B9%B4" title="儒略年">儒略年</a>之秒數（365.25×86400=31557600），得出结果<span class="nowrap"><span style="display:none" class="sortkey">7015946073047258080♠</span>9<span style="margin-left:.25em;">460</span><span style="margin-left:.25em;">730</span><span style="margin-left:.25em;">472</span><span style="margin-left:.25em;">580</span><span style="margin-left:.25em;">800</span> 米</span>。 </p> <div class="mw-heading mw-heading2"><h2 id="比較"><span id=".E6.AF.94.E8.BC.83"></span>比較</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%85%89%E5%B9%B4&action=edit&section=2" title="编辑章节：比較"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>光由<a href="/wiki/%E5%A4%AA%E9%99%BD" class="mw-redirect" title="太陽">太陽</a>到達<a href="/wiki/%E5%9C%B0%E7%90%83" title="地球">地球</a>需時約八<a href="/wiki/%E5%88%86" title="分">分</a>，即地球跟太陽的距離為八“光分”，這個距離也稱為一個<a href="/wiki/%E5%A4%A9%E6%96%87%E5%96%AE%E4%BD%8D" title="天文單位">天文單位</a>。</li> <li>一光年约等於63240<a href="/wiki/%E5%A4%A9%E6%96%87%E5%96%AE%E4%BD%8D" title="天文單位">天文單位</a>。</li> <li>已知距離太陽系<a href="/wiki/%E6%9C%80%E8%BF%91%E6%81%92%E6%98%9F%E5%88%97%E8%A1%A8" class="mw-redirect" title="最近恒星列表">最近的恆星</a>為<a href="/wiki/%E5%8D%8A%E4%BA%BA%E9%A6%AC%E5%BA%A7" class="mw-redirect" title="半人馬座">半人馬座</a><a href="/wiki/%E6%AF%94%E9%84%B0%E6%98%9F" class="mw-redirect" title="比鄰星">比鄰星</a>，它相距4.22光年。</li> <li>我們所處的星系可用於測量<a href="/wiki/%E9%A1%9E%E6%98%9F%E9%AB%94" class="mw-redirect" title="類星體">類星體</a>的距離或<a href="/wiki/%E5%AE%87%E5%AE%99%E5%A4%A7%E5%B0%BA%E5%BA%A6%E6%A7%8B%E9%80%A0" class="mw-redirect" title="宇宙大尺度構造">宇宙大尺度構造</a>如<a href="/wiki/%E9%95%B7%E5%9F%8E_(%E5%A4%A9%E6%96%87%E5%AD%B8)" class="mw-redirect" title="長城 (天文學)">沿著長城</a>的長度。</li></ul> <div class="mw-heading mw-heading2"><h2 id="歷史"><span id=".E6.AD.B7.E5.8F.B2"></span>歷史</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%85%89%E5%B9%B4&action=edit&section=3" title="编辑章节：歷史"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>1676年以前，人們普遍相信光的傳播是不需要時間的。1676年，丹麥科學家<a href="/wiki/%E5%A5%A7%E5%8B%92%C2%B7%E7%BE%85%E9%BB%98" title="奧勒·羅默">奧勒·羅默</a>首先作出了光的傳播需要時間的設想。1671年，羅默開始觀測木星的衛星（木衛一）。他發現木星掩衛的時間（由木衛一躲到木星背對地球的一面開始到它再次出現在地球上可觀測到的區域之間的時間間隔）並不是一個定值。當木星離地球較遠時，掩衛過程所用的時間更長。1675年，法國的天文學家<a href="/wiki/%E4%B9%94%E7%93%A6%E5%B0%BC%C2%B7%E5%A4%9A%E6%A2%85%E5%B0%BC%E7%A7%91%C2%B7%E5%8D%A1%E8%A5%BF%E5%B0%BC" title="乔瓦尼·多梅尼科·卡西尼">乔瓦尼·多梅尼科·卡西尼</a>開始設想這種現象產生的原因可能是光的傳播需要時間。然而，他在不久后就放棄了這個想法。 </p><p>當時擔任卡西尼的科學助手的羅默則沒有放棄。他堅持假設光的速度是有限的，并計算出以光的速度，要穿越相當於地球公轉軌道直徑的距離需要22分鐘的時間。以今天的數據來看，他的結果等價于說光的速度每小時是214,000公里（羅默當年對地球公轉軌道的直徑計算有誤）。 </p><p>但是直到18世紀上半葉，主流科學界才逐漸接受了光速有限的想法。1728年，英國天文學家詹姆斯·布拉德雷給出了另一種測量光速的方法，得出光的速度大約是每秒301,000公里。1838年，德國天文學家<a href="/wiki/%E5%BC%97%E9%87%8C%E5%BE%B7%E9%87%8C%E5%B8%8C%C2%B7%E5%A8%81%E5%BB%89%C2%B7%E8%B4%9D%E5%A1%9E%E5%B0%94" title="弗里德里希·威廉·贝塞尔">弗里德里希·威廉·贝塞尔</a>首先使用“光年”一詞，作為天文學測量上的單位。他測量出<a href="/wiki/%E5%A4%A9%E9%B5%9D%E5%BA%A761" title="天鵝座61">天鵝座61</a>（現在也稱為“貝塞爾星”）與地球之間的距離是10.3光年。 </p> <div class="mw-heading mw-heading2"><h2 id="參見"><span id=".E5.8F.83.E8.A6.8B"></span>參見</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%85%89%E5%B9%B4&action=edit&section=4" title="编辑章节：參見"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/%E5%85%89%E7%A7%92" title="光秒">光秒</a></li> <li><a href="/wiki/%E7%8B%AD%E4%B9%89%E7%9B%B8%E5%AF%B9%E8%AE%BA" title="狭义相对论">狭义相对论</a></li> <li><a href="/wiki/%E5%BB%A3%E7%BE%A9%E7%9B%B8%E5%B0%8D%E8%AB%96" title="廣義相對論">廣義相對論</a></li> <li><a href="/wiki/%E5%A4%A9%E4%BD%93%E7%89%A9%E7%90%86%E5%AD%A6" title="天体物理学">天体物理学</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="參考來源"><span id=".E5.8F.83.E8.80.83.E4.BE.86.E6.BA.90"></span>參考來源</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%85%89%E5%B9%B4&action=edit&section=5" title="编辑章节：參考來源"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><cite class="citation web"><a rel="nofollow" class="external text" href="http://astro-canada.ca/_en/a3700.html"><i>Light-Year: The astronomer’s unit for measuring distance</i></a>. astro-canada.ca. <span class="reference-accessdate"> [<span class="nowrap">2010-05-18</span>]</span>. （原始内容<a rel="nofollow" class="external text" href="https://web.archive.org/web/20100917174949/http://astro-canada.ca/_en/a3700.html">存档</a>于2010-09-17）.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E5%85%89%E5%B9%B4&rft.btitle=Light-Year%3A+The+astronomer%E2%80%99s+unit+for+measuring+distance&rft.genre=unknown&rft.pub=astro-canada.ca&rft_id=http%3A%2F%2Fastro-canada.ca%2F_en%2Fa3700.html&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></li></ul> <div class="mw-heading mw-heading2"><h2 id="参考书目"><span id=".E5.8F.82.E8.80.83.E4.B9.A6.E7.9B.AE"></span>参考书目</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%85%89%E5%B9%B4&action=edit&section=6" title="编辑章节：参考书目"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text">「<a href="/wiki/%E7%BE%8E%E5%9C%8B%E8%88%AA%E7%A9%BA%E6%9A%A8%E5%A4%AA%E7%A9%BA%E7%B8%BD%E7%BD%B2" class="mw-redirect" title="美國航空暨太空總署">美國航空暨太空總署</a>」新聞發布(05-156) 2005-06-20: <a rel="nofollow" class="external text" href="https://www.nasa.gov/home/hqnews/2005/jun/HQ_05_156_X43A_Guinness.html">X-43A 打破 9.6 </a><a href="/wiki/%E9%A6%AC%E8%B5%AB" class="mw-redirect" title="馬赫">馬赫</a>（英文）（<a rel="nofollow" class="external text" href="//web.archive.org/web/20200512175739/https://www.nasa.gov/home/hqnews/2005/jun/HQ_05_156_X43A_Guinness.html">页面存档备份</a>，存于<a href="/wiki/%E4%BA%92%E8%81%94%E7%BD%91%E6%A1%A3%E6%A1%88%E9%A6%86" title="互联网档案馆">互联网档案馆</a>）</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text">Joby Josekutty 2002: <a rel="nofollow" class="external text" href="http://hypertextbook.com/facts/2002/JobyJosekutty.shtml">商用飛機的速度（英文）</a> （<a rel="nofollow" class="external text" href="//web.archive.org/web/20070511011230/http://hypertextbook.com/facts/2002/JobyJosekutty.shtml">页面存档备份</a>，存于<a href="/wiki/%E4%BA%92%E8%81%94%E7%BD%91%E6%A1%A3%E6%A1%88%E9%A6%86" title="互联网档案馆">互联网档案馆</a>）</span> </li> </ol> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r84265675">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl 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href="/wiki/Special:%E7%BC%96%E8%BE%91%E9%A1%B5%E9%9D%A2/Template:%E9%95%B7%E5%BA%A6%E5%96%AE%E4%BD%8D" title="Special:编辑页面/Template:長度單位"><abbr title="编辑该模板">编</abbr></a></li></ul></div><div id="長度單位" style="font-size:110%;margin:0 5em"><a href="/wiki/%E9%95%BF%E5%BA%A6" title="长度">長度單位</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E5%9B%BD%E9%99%85%E5%8D%95%E4%BD%8D%E5%88%B6" title="国际单位制">公制</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/%E7%B1%B3_(%E5%8D%95%E4%BD%8D)" title="米 (单位)">米</a>（m）</li> <li><a href="/wiki/%E7%B1%B3_(%E5%8D%95%E4%BD%8D)" title="米 (单位)">昆米</a>（Qm）</li> <li><a href="/wiki/%E7%B1%B3_(%E5%8D%95%E4%BD%8D)" title="米 (单位)">容米</a>（Rm）</li> <li><a href="/wiki/%E5%A0%AF%E7%B1%B3" title="堯米">尧米</a>（Ym）</li> <li><a href="/wiki/%E6%BE%A4%E7%B1%B3_(%E5%96%AE%E4%BD%8D)" title="澤米 (單位)">泽米</a>（Zm）</li> <li><a href="/wiki/%E8%89%BE%E7%B1%B3_(%E5%96%AE%E4%BD%8D)" title="艾米 (單位)">艾米</a>（Em）</li> <li><a href="/wiki/%E6%8B%8D%E7%B1%B3" title="拍米">拍米</a>（Pm）</li> <li><a href="/wiki/%E5%A4%AA%E7%B1%B3" title="太米">太米</a>（Tm）</li> <li><a href="/wiki/%E5%90%89%E7%B1%B3_(%E9%95%BF%E5%BA%A6%E5%8D%95%E4%BD%8D)" title="吉米 (长度单位)">吉米</a>（Gm）</li> <li><a href="/wiki/%E7%99%BE%E4%B8%87%E7%B1%B3" title="百万米">兆米</a>（Mm）</li> <li><a href="/wiki/%E5%85%AC%E9%87%8C" title="公里">千米</a>（km）</li> <li><a href="/wiki/%E7%B2%A8" title="粨">百米</a>（hm）</li> <li><a href="/wiki/%E5%85%AC%E4%B8%88" title="公丈">十米</a>（dam）</li> <li><a href="/wiki/%E5%88%86%E7%B1%B3" title="分米">分米</a>（dm）</li> <li><a href="/wiki/%E5%8E%98%E7%B1%B3" title="厘米">厘米</a>（cm）</li> <li><a href="/wiki/%E6%AF%AB%E7%B1%B3" title="毫米">毫米</a>（mm）</li> <li><a href="/wiki/%E7%B5%B2%E7%B1%B3" title="絲米">絲米</a>（dmm）</li> <li><a href="/wiki/%E5%BF%BD%E7%B1%B3" title="忽米">忽米</a>（cmm）</li> <li><a href="/wiki/%E5%BE%AE%E7%B1%B3" title="微米">微米</a>（μm）</li> <li><a href="/wiki/%E7%BA%B3%E7%B1%B3" title="纳米">纳米</a>（nm）</li> <li><a href="/wiki/%E7%9A%AE%E7%B1%B3" title="皮米">皮米（微微米）</a>（pm）</li> <li><a href="/wiki/%E9%A3%9B%E7%B1%B3" title="飛米">飞米（费米）</a>（fm）</li> <li><a href="/wiki/%E9%98%BF%E7%B1%B3" class="mw-redirect" title="阿米">阿米</a>（am）</li> <li><a href="/wiki/%E4%BB%8B%E7%B1%B3" class="mw-redirect" title="介米">仄米</a>（zm）</li> <li><a href="/wiki/%E6%94%B8%E7%B1%B3" class="mw-redirect" title="攸米">幺米</a>（ym）</li> <li><a href="/wiki/%E6%9F%94%E7%B1%B3" class="mw-redirect" title="柔米">柔米</a>（rm）</li> <li><a href="/wiki/%E4%BA%8F%E7%B1%B3" class="mw-redirect" title="亏米">亏米</a>（qm）</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E5%B8%82%E5%88%B6#长度" title="市制">市制</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li>里</li> <li>引</li> <li>丈</li> <li>尺</li> <li>寸</li> <li>分</li> <li>厘</li> <li>毫</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E8%8B%B1%E5%88%B6%E5%8D%95%E4%BD%8D" title="英制单位">英制</a>／<a href="/wiki/%E7%BE%8E%E5%9B%BD%E6%83%AF%E7%94%A8%E5%8D%95%E4%BD%8D" class="mw-redirect" title="美国惯用单位">美国惯用单位</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/%E8%8B%B1%E9%87%8C" title="英里">英里</a>（哩、咪）（mi）</li> <li><a href="/wiki/%E6%B5%AA_(%E5%96%AE%E4%BD%8D)" title="浪 (單位)">浪</a>（furlong）</li> <li><a href="/wiki/%E9%8F%88_(%E9%87%8F%E5%BA%A6%E5%96%AE%E4%BD%8D)" title="鏈 (量度單位)">鏈</a>（chain）</li> <li><a href="/wiki/%E6%A1%BF" title="桿">桿</a>（rod）</li> <li><a href="/wiki/%E8%8B%B1%E5%B0%8B" title="英尋">英尋（噚）</a>（fathom）</li> <li><a href="/wiki/%E7%A0%81" title="码">码</a>（yd）</li> <li><a href="/wiki/%E8%8B%B1%E5%B0%BA" title="英尺">英尺（呎）</a>（ft）</li> <li><a href="/wiki/%E8%8B%B1%E5%AF%B8" title="英寸">英寸（吋）</a>（in）</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E4%B8%9C%E4%BA%9A%E4%BC%A0%E7%BB%9F%E8%AE%A1%E9%87%8F%E4%BD%93%E7%B3%BB" class="mw-redirect" title="东亚传统计量体系">東亞傳統</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/%E5%A0%82_(%E9%95%B7%E5%BA%A6%E5%96%AE%E4%BD%8D)" title="堂 (長度單位)">堂</a></li> <li><a href="/wiki/%E9%87%8C_(%E9%95%B7%E5%BA%A6%E5%96%AE%E4%BD%8D)" title="里 (長度單位)">里</a></li> <li><a href="/w/index.php?title=%E5%BC%95&action=edit&redlink=1" class="new" title="引（页面不存在）">引</a></li> <li><a href="/wiki/%E4%B8%88" title="丈">丈</a></li> <li><a href="/wiki/%E4%BB%9E" title="仞">仞</a></li> <li><a href="/wiki/%E5%B0%BA" title="尺">尺、咫</a></li> <li><a href="/wiki/%E5%AF%B8" title="寸">寸</a></li> <li><a href="/w/index.php?title=%E5%88%86_(%E5%B0%BA%E8%B2%AB%E6%B3%95)&action=edit&redlink=1" class="new" title="分 (尺貫法)（页面不存在）">分</a></li> <li><a href="/wiki/%E5%8E%98_(%E9%95%BF%E5%BA%A6%E5%8D%95%E4%BD%8D)" title="厘 (长度单位)">厘</a>（換算另見<a href="/wiki/%E4%B8%AD%E5%9C%8B%E5%BA%A6%E9%87%8F%E8%A1%A1" title="中國度量衡">中國度量衡</a>）</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E5%A4%A9%E6%96%87%E5%AD%B8" title="天文學">天文學</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/%E7%A7%92%E5%B7%AE%E8%B7%9D" title="秒差距">秒差距</a>（pc）</li> <li><a class="mw-selflink selflink">光年</a>（ly）</li> <li><a href="/wiki/%E5%A4%A9%E6%96%87%E5%96%AE%E4%BD%8D" title="天文單位">天文單位</a>（AU）</li> <li><a href="/wiki/%E6%9C%88%E7%90%83%E8%B7%9D%E9%9B%A2" title="月球距離">月球距離</a>（LD）</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E5%8F%B0%E5%88%B6#長度" title="台制">台制</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li>尺</li> <li>寸</li> <li>分</li> <li>厘</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E5%B0%88%E5%B1%AC%E5%96%AE%E4%BD%8D" title="專屬單位">專屬單位</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/%E6%B5%B7%E9%87%8C" title="海里">海里（浬）</a>（NM, Nm, nm, nmi, n mile）</li> <li><a href="/wiki/%E9%8F%88_(%E6%B5%B7%E4%BA%8B%E9%95%B7%E5%BA%A6%E5%96%AE%E4%BD%8D)" title="鏈 (海事長度單位)">鏈 (海事)</a>（cable）</li> <li><a href="/wiki/%E5%9F%83%E6%96%AF%E7%89%B9%E6%9C%97" title="埃斯特朗">埃</a>（Å）</li> <li><a href="/wiki/%E9%BB%9E_(%E5%8D%B0%E5%88%B7)" title="點 (印刷)">点</a>（pt）</li> <li><a href="/wiki/%E6%B4%BE%E5%8D%A1" title="派卡">派卡</a>（pc）</li> <li><a href="/wiki/%E6%A2%9D" title="條">條</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/%E8%87%AA%E7%84%B6%E5%96%AE%E4%BD%8D" class="mw-redirect" title="自然單位">自然單位</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E6%99%AE%E6%9C%97%E5%85%8B%E9%95%B7%E5%BA%A6" title="普朗克長度">普朗克長度</a></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r84265675"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r84261037"></div><div role="navigation" class="navbox" aria-labelledby="天文學長度單位" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="collapsible-title navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r84265675"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r84244141"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:%E5%A4%A9%E6%96%87%E9%95%B7%E5%BA%A6" title="Template:天文長度"><abbr title="查看该模板">查</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:%E5%A4%A9%E6%96%87%E9%95%B7%E5%BA%A6" title="Template talk:天文長度"><abbr title="讨论该模板">论</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:%E7%BC%96%E8%BE%91%E9%A1%B5%E9%9D%A2/Template:%E5%A4%A9%E6%96%87%E9%95%B7%E5%BA%A6" title="Special:编辑页面/Template:天文長度"><abbr title="编辑该模板">编</abbr></a></li></ul></div><div id="天文學長度單位" style="font-size:110%;margin:0 5em"><a href="/wiki/%E5%A4%A9%E6%96%87%E5%AD%B8" title="天文學">天文學</a><a href="/wiki/%E9%95%BF%E5%BA%A6" title="长度">長度單位</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/%E5%9C%B0%E7%90%83%E5%8D%8A%E5%BE%84" title="地球半径">地球半径</a>（<i>R</i><sub>🜨</sub>或<i>R<sub>E</sub></i>）</li> <li><a href="/wiki/%E5%85%89%E7%A7%92" title="光秒">光秒</a>（ls）</li> <li><a href="/wiki/%E5%A4%AA%E9%98%B3%E5%8D%8A%E5%BE%84" title="太阳半径">太阳半径</a>（<i>R</i><sub>☉</sub>）</li> <li><a href="/wiki/%E5%90%89%E7%B1%B3_(%E9%95%BF%E5%BA%A6%E5%8D%95%E4%BD%8D)" title="吉米 (长度单位)">京米</a>（Gm）</li> <li><a href="/wiki/%E5%A4%A9%E6%96%87%E5%96%AE%E4%BD%8D" title="天文單位">天文單位</a>（AU）</li> <li><a class="mw-selflink selflink">光年</a>（ly）</li> <li><a href="/wiki/%E7%A7%92%E5%B7%AE%E8%B7%9D" title="秒差距">秒差距</a>（pc）</li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>參見：<a href="/wiki/%E5%AE%87%E5%AE%99%E8%B7%9D%E7%A6%BB%E5%B0%BA%E5%BA%A6" title="宇宙距离尺度">宇宙距离尺度</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E6%95%B0%E9%87%8F%E7%BA%A7_(%E9%95%BF%E5%BA%A6)" title="数量级 (长度)">数量级</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%8D%95%E4%BD%8D%E6%8D%A2%E7%AE%97" title="单位换算">单位换算</a></div></td></tr></tbody></table></div>    </div><noscript><img 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