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mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%83%AD%E3%82%B0%E3%82%A4%E3%83%B3&returnto=HD+140283" title="ログインすることを推奨します。ただし、必須ではありません。 [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>ログイン</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"> ログアウトした編集者のページ <a href="/wiki/Wikipedia:%E3%82%A6%E3%82%A3%E3%82%AD%E3%83%9A%E3%83%87%E3%82%A3%E3%82%A2%E3%81%B8%E3%82%88%E3%81%86%E3%81%93%E3%81%9D" aria-label="編集の詳細"><span>もっと詳しく</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/%E7%89%B9%E5%88%A5:%E8%87%AA%E5%88%86%E3%81%AE%E6%8A%95%E7%A8%BF%E8%A8%98%E9%8C%B2" title="このIPアドレスからなされた編集の一覧 [y]" accesskey="y"><span>投稿記録</span></a></li><li id="pt-anontalk" class="mw-list-item"><a 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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">目次</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">非表示</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">ページ先頭</div> </a> </li> <li id="toc-物理的特徴と年齢" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#物理的特徴と年齢"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>物理的特徴と年齢</span> </div> </a> <ul id="toc-物理的特徴と年齢-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-脚注" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#脚注"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>脚注</span> </div> </a> <button aria-controls="toc-脚注-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>脚注サブセクションを切り替えます</span> </button> <ul id="toc-脚注-sublist" class="vector-toc-list"> <li id="toc-注釈" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#注釈"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>注釈</span> </div> </a> <ul id="toc-注釈-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-出典" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#出典"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>出典</span> </div> </a> <ul id="toc-出典-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-関連項目" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#関連項目"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>関連項目</span> </div> </a> <ul id="toc-関連項目-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="目次" 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="目次の表示・非表示を切り替え" > <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">目次の表示・非表示を切り替え</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">HD 140283</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="特定の記事の別の言語版に移動します。利用可能な言語21件" > <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-21" 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">21の言語版</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/HD_140283" title="アフリカーンス語: HD 140283" lang="af" hreflang="af" data-title="HD 140283" data-language-autonym="Afrikaans" data-language-local-name="アフリカーンス語" 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/HD_140283" title="アラビア語: HD 140283" lang="ar" hreflang="ar" data-title="HD 140283" data-language-autonym="العربية" data-language-local-name="アラビア語" 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/HD_140283" title="アストゥリアス語: HD 140283" lang="ast" hreflang="ast" data-title="HD 140283" data-language-autonym="Asturianu" data-language-local-name="アストゥリアス語" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/HD_140283" title="チェコ語: HD 140283" lang="cs" hreflang="cs" data-title="HD 140283" data-language-autonym="Čeština" data-language-local-name="チェコ語" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/HD_140283" title="ドイツ語: HD 140283" lang="de" hreflang="de" data-title="HD 140283" data-language-autonym="Deutsch" data-language-local-name="ドイツ語" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/HD_140283" title="英語: HD 140283" lang="en" hreflang="en" data-title="HD 140283" data-language-autonym="English" data-language-local-name="英語" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/HD_140283" title="スペイン語: HD 140283" lang="es" hreflang="es" data-title="HD 140283" data-language-autonym="Español" data-language-local-name="スペイン語" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/HD_140283" title="バスク語: HD 140283" lang="eu" hreflang="eu" data-title="HD 140283" data-language-autonym="Euskara" data-language-local-name="バスク語" 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%DA%86%E2%80%8C%D8%AF%DB%8C_%DB%B1%DB%B4%DB%B0%DB%B2%DB%B8%DB%B3" title="ペルシア語: اچ‌دی ۱۴۰۲۸۳" lang="fa" hreflang="fa" data-title="اچ‌دی ۱۴۰۲۸۳" data-language-autonym="فارسی" data-language-local-name="ペルシア語" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/HD_140283" title="フランス語: HD 140283" lang="fr" hreflang="fr" data-title="HD 140283" data-language-autonym="Français" data-language-local-name="フランス語" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/HD_140283" title="ヘブライ語: HD 140283" lang="he" hreflang="he" data-title="HD 140283" data-language-autonym="עברית" data-language-local-name="ヘブライ語" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/HD_140283" title="インドネシア語: HD 140283" lang="id" hreflang="id" data-title="HD 140283" data-language-autonym="Bahasa Indonesia" data-language-local-name="インドネシア語" 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/HD_140283" title="イタリア語: HD 140283" lang="it" hreflang="it" data-title="HD 140283" data-language-autonym="Italiano" data-language-local-name="イタリア語" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/HD_140283" title="韓国語: HD 140283" lang="ko" hreflang="ko" data-title="HD 140283" data-language-autonym="한국어" data-language-local-name="韓国語" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/HD_140283" title="ポーランド語: HD 140283" lang="pl" hreflang="pl" data-title="HD 140283" data-language-autonym="Polski" data-language-local-name="ポーランド語" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/HD_140283" title="ポルトガル語: HD 140283" lang="pt" hreflang="pt" data-title="HD 140283" data-language-autonym="Português" data-language-local-name="ポルトガル語" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/HD_140283" title="ロシア語: HD 140283" lang="ru" hreflang="ru" data-title="HD 140283" data-language-autonym="Русский" data-language-local-name="ロシア語" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/HD_140283" title="スウェーデン語: HD 140283" lang="sv" hreflang="sv" data-title="HD 140283" data-language-autonym="Svenska" data-language-local-name="スウェーデン語" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/HD_140283" title="ウクライナ語: HD 140283" lang="uk" hreflang="uk" data-title="HD 140283" data-language-autonym="Українська" data-language-local-name="ウクライナ語" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/HD_140283" title="ベトナム語: HD 140283" lang="vi" hreflang="vi" data-title="HD 140283" data-language-autonym="Tiếng Việt" data-language-local-name="ベトナム語" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/HD_140283" title="中国語: HD 140283" lang="zh" hreflang="zh" data-title="HD 140283" data-language-autonym="中文" data-language-local-name="中国語" class="interlanguage-link-target"><span>中文</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/Q5629290#sitelinks-wikipedia" title="言語間リンクを編集" class="wbc-editpage">リンクを編集</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="名前空間"> <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/HD_140283" title="本文を閲覧 [c]" accesskey="c"><span>ページ</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=%E3%83%8E%E3%83%BC%E3%83%88:HD_140283&action=edit&redlink=1" rel="discussion" class="new" title="「本文ページについての議論」 (存在しないページ) [t]" accesskey="t"><span>ノート</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="別の言語に切り替える" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">日本語</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="表示"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/HD_140283"><span>閲覧</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=HD_140283&action=edit" title="このページのソースコードを編集する [e]" accesskey="e"><span>編集</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=HD_140283&action=history" title="このページの過去の版 [h]" accesskey="h"><span>履歴表示</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="ページツール"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="ツール" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">ツール</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">ツール</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">非表示</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="その他の操作" > <div class="vector-menu-heading"> 操作 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/HD_140283"><span>閲覧</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=HD_140283&action=edit" title="このページのソースコードを編集する [e]" accesskey="e"><span>編集</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=HD_140283&action=history"><span>履歴表示</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> 全般 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E3%83%AA%E3%83%B3%E3%82%AF%E5%85%83/HD_140283" title="ここにリンクしている全ウィキページの一覧 [j]" accesskey="j"><span>リンク元</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E9%96%A2%E9%80%A3%E3%83%9A%E3%83%BC%E3%82%B8%E3%81%AE%E6%9B%B4%E6%96%B0%E7%8A%B6%E6%B3%81/HD_140283" rel="nofollow" title="このページからリンクしているページの最近の更新 [k]" accesskey="k"><span>関連ページの更新状況</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%81%AE%E3%82%A2%E3%83%83%E3%83%97%E3%83%AD%E3%83%BC%E3%83%89" title="ファイルをアップロードする [u]" accesskey="u"><span>ファイルをアップロード</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E7%89%B9%E5%88%A5%E3%83%9A%E3%83%BC%E3%82%B8%E4%B8%80%E8%A6%A7" title="特別ページの一覧 [q]" accesskey="q"><span>特別ページ</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=HD_140283&oldid=101980209" title="このページのこの版への固定リンク"><span>この版への固定リンク</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=HD_140283&action=info" title="このページについての詳細情報"><span>ページ情報</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%81%93%E3%81%AE%E3%83%9A%E3%83%BC%E3%82%B8%E3%82%92%E5%BC%95%E7%94%A8&page=HD_140283&id=101980209&wpFormIdentifier=titleform" title="このページの引用方法"><span>このページを引用</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:UrlShortener&url=https%3A%2F%2Fja.wikipedia.org%2Fwiki%2FHD_140283"><span>短縮URLを取得する</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:QrCode&url=https%3A%2F%2Fja.wikipedia.org%2Fwiki%2FHD_140283"><span>QRコードをダウンロード</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> 印刷/書き出し </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%83%96%E3%83%83%E3%82%AF&bookcmd=book_creator&referer=HD+140283"><span>ブックの新規作成</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:DownloadAsPdf&page=HD_140283&action=show-download-screen"><span>PDF 形式でダウンロード</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=HD_140283&printable=yes" title="このページの印刷用ページ [p]" accesskey="p"><span>印刷用バージョン</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> 他のプロジェクト </div> <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:HD_140283" hreflang="en"><span>コモンズ</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/Q5629290" title="関連付けられたデータリポジトリ項目へのリンク [g]" accesskey="g"><span>ウィキデータ項目</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="ページツール"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="表示"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">表示</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">非表示</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">出典: フリー百科事典『ウィキペディア（Wikipedia）』</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="ja" dir="ltr"><table class="infobox" style="width:320px;"> <tbody><tr> <th style="background-color: #ffffc0; text-align: center; font-size:110%;" colspan="2">HD 140283<sup id="cite_ref-SIMBAD_1-0" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </th></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E6%98%9F%E5%BA%A7" title="星座">星座</a> </th> <td><a href="/wiki/%E3%81%A6%E3%82%93%E3%81%B3%E3%82%93%E5%BA%A7" title="てんびん座">てんびん座</a><sup id="cite_ref-Hubble20130307_2-0" class="reference"><a href="#cite_note-Hubble20130307-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E8%A6%8B%E3%81%8B%E3%81%91%E3%81%AE%E7%AD%89%E7%B4%9A" title="見かけの等級">見かけの等級</a> <small>(m<small>v</small>)</small> </th> <td>7.205 ± 0.020<sup id="cite_ref-BondNelan2013_3-0" class="reference"><a href="#cite_note-BondNelan2013-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;">分類 </th> <td><a href="/wiki/%E6%81%92%E6%98%9F" title="恒星">恒星</a><br />低金属星 </td></tr> <tr> <th style="background-color: #ffffc0;text-align: center;" colspan="2">位置<br /><small><a href="/wiki/%E5%85%83%E6%9C%9F" title="元期">元期</a>:<a href="/wiki/J2000.0" class="mw-redirect" title="J2000.0">J2000.0</a><sup id="cite_ref-SIMBAD_1-1" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></small> </th></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E8%B5%A4%E7%B5%8C" title="赤経">赤経</a> <small>(RA, α)</small> </th> <td> 15<sup>h</sup> 43<sup>m</sup> 03.0967798658<sup>s</sup><sup id="cite_ref-SIMBAD_1-2" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E8%B5%A4%E7%B7%AF" title="赤緯">赤緯</a> <small>(Dec, δ)</small> </th> <td>−10° 56′ 00.595803430″<sup id="cite_ref-SIMBAD_1-3" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E8%B5%A4%E6%96%B9%E5%81%8F%E7%A7%BB" title="赤方偏移">赤方偏移</a> </th> <td>-0.000568<sup id="cite_ref-SIMBAD_1-4" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E8%A6%96%E7%B7%9A%E9%80%9F%E5%BA%A6" title="視線速度">視線速度</a> <small>(Rv)</small> </th> <td>-170.37 km/s<sup id="cite_ref-SIMBAD_1-5" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E5%9B%BA%E6%9C%89%E9%81%8B%E5%8B%95" title="固有運動">固有運動</a> <small>(μ)</small> </th> <td><a href="/wiki/%E8%B5%A4%E7%B5%8C" title="赤経">赤経</a>: -1114.869 <a href="/wiki/%E7%A7%92_(%E8%A7%92%E5%BA%A6)" title="秒 (角度)">ミリ秒</a>/年<sup id="cite_ref-SIMBAD_1-6" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br /><a href="/wiki/%E8%B5%A4%E7%B7%AF" title="赤緯">赤緯</a>: -303.574 <a href="/wiki/%E7%A7%92_(%E8%A7%92%E5%BA%A6)" title="秒 (角度)">ミリ秒</a>/年<sup id="cite_ref-SIMBAD_1-7" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E5%B9%B4%E5%91%A8%E8%A6%96%E5%B7%AE" title="年周視差">年周視差</a> <small>(π)</small> </th> <td>16.1140 ± 0.0720ミリ秒<sup id="cite_ref-SIMBAD_1-8" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> <br />（誤差0.4%） </td></tr> <tr> <th style="text-align: left;">距離 </th> <td>202.4 ± 0.9 <a href="/wiki/%E5%85%89%E5%B9%B4" title="光年">光年</a><sup id="cite_ref-注dist_4-0" class="reference"><a href="#cite_note-注dist-4"><span class="cite-bracket">[</span>注 1<span class="cite-bracket">]</span></a></sup> <br />（62.1 ± 0.3 <a href="/wiki/%E3%83%91%E3%83%BC%E3%82%BB%E3%82%AF" title="パーセク">パーセク</a><sup id="cite_ref-注dist_4-1" class="reference"><a href="#cite_note-注dist-4"><span class="cite-bracket">[</span>注 1<span class="cite-bracket">]</span></a></sup>） </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E7%B5%B6%E5%AF%BE%E7%AD%89%E7%B4%9A" title="絶対等級">絶対等級</a> <small>(MV)</small> </th> <td>3.377 ± 0.027<sup id="cite_ref-BondNelan2013_3-1" class="reference"><a href="#cite_note-BondNelan2013-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><br />3.2<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>注 2<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="background-color: #ffffc0;text-align: center;" colspan="2">物理的性質 </th></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E5%8D%8A%E5%BE%84" title="半径">半径</a> </th> <td>2.04 ± 0.04 <a href="/wiki/%E5%A4%AA%E9%99%BD%E5%8D%8A%E5%BE%84" title="太陽半径"><i>R</i><sub>☉</sub></a><sup id="cite_ref-KarovicovaWhite2018_6-0" class="reference"><a href="#cite_note-KarovicovaWhite2018-6"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E8%B3%AA%E9%87%8F" title="質量">質量</a> </th> <td>0.775 ± 0.005 <a href="/wiki/%E5%A4%AA%E9%99%BD%E8%B3%AA%E9%87%8F" title="太陽質量"><i>M</i><sub>☉</sub></a>または<br />0.800 ± 0.005 <i>M</i><sub>☉</sub><sup id="cite_ref-CreeveyThévenin2015_7-0" class="reference"><a href="#cite_note-CreeveyThévenin2015-7"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E3%82%B9%E3%83%9A%E3%82%AF%E3%83%88%E3%83%AB%E5%88%86%E9%A1%9E" title="スペクトル分類">スペクトル分類</a> </th> <td>F9VkA5mA1<sup id="cite_ref-SIMBAD_1-9" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E5%85%89%E5%BA%A6_(%E5%A4%A9%E6%96%87%E5%AD%A6)" title="光度 (天文学)">光度</a> </th> <td>4.82 ± 0.27 <a href="/wiki/%E5%A4%AA%E9%99%BD%E5%85%89%E5%BA%A6" title="太陽光度"><i>L</i><sub>☉</sub></a><sup id="cite_ref-KarovicovaWhite2018_6-1" class="reference"><a href="#cite_note-KarovicovaWhite2018-6"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;">表面<a href="/wiki/%E6%B8%A9%E5%BA%A6" title="温度">温度</a> </th> <td>5787 ± 48 <a href="/wiki/%E3%82%B1%E3%83%AB%E3%83%93%E3%83%B3" title="ケルビン">K</a><sup id="cite_ref-KarovicovaWhite2018_6-2" class="reference"><a href="#cite_note-KarovicovaWhite2018-6"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E8%89%B2%E6%8C%87%E6%95%B0_(%E5%A4%A9%E6%96%87)" title="色指数 (天文)">色指数</a> (B-V) </th> <td>0.506 ± 0.020<sup id="cite_ref-BondNelan2013_3-2" class="reference"><a href="#cite_note-BondNelan2013-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E9%87%91%E5%B1%9E%E9%87%8F" title="金属量">金属量</a>[Fe/H] </th> <td>-2.40 ± 0.10<sup id="cite_ref-BondNelan2013_3-3" class="reference"><a href="#cite_note-BondNelan2013-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="text-align: left;"><a href="/wiki/%E5%B9%B4%E9%BD%A2" title="年齢">年齢</a> </th> <td>144.6 ± 8.0 億年<sup id="cite_ref-BondNelan2013_3-4" class="reference"><a href="#cite_note-BondNelan2013-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-CreeveyThévenin2015_7-1" class="reference"><a href="#cite_note-CreeveyThévenin2015-7"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <th style="background-color: #ffffc0;text-align: center;" colspan="2">他の<a href="/wiki/%E5%A4%A9%E4%BD%93%E3%82%AB%E3%82%BF%E3%83%AD%E3%82%B0" title="天体カタログ">カタログ</a>での名称 </th></tr> <tr> <th colspan="2" style="text-align: left; font-weight: normal;"><a href="/wiki/%E3%82%B0%E3%83%AA%E3%83%BC%E3%82%BC%E8%BF%91%E5%82%8D%E6%81%92%E6%98%9F%E3%82%AB%E3%82%BF%E3%83%AD%E3%82%B0" title="グリーゼ近傍恒星カタログ">GJ</a> 1195<sup id="cite_ref-SIMBAD_1-10" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br /><a href="/wiki/%E3%82%AC%E3%82%A4%E3%82%A2%E8%A8%88%E7%94%BB" title="ガイア計画">Gaia DR2</a> 6268770373590148224<sup id="cite_ref-SIMBAD_1-11" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br /><a href="/wiki/%E3%83%92%E3%83%83%E3%83%91%E3%83%AB%E3%82%B3%E3%82%B9%E6%98%9F%E8%A1%A8" title="ヒッパルコス星表">HIP</a> 76976<sup id="cite_ref-SIMBAD_1-12" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br />NSV 7210<sup id="cite_ref-SIMBAD_1-13" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br /><a href="/wiki/%E3%82%B9%E3%83%9F%E3%82%BD%E3%83%8B%E3%82%A2%E3%83%B3%E5%A4%A9%E6%96%87%E5%8F%B0%E6%98%9F%E8%A1%A8" title="スミソニアン天文台星表">SAO</a> 159459<sup id="cite_ref-SIMBAD_1-14" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br />TYC 5601-694-1<sup id="cite_ref-SIMBAD_1-15" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br /><a href="/wiki/2MASS" title="2MASS">2MASS</a> J15430307-1056009<sup id="cite_ref-SIMBAD_1-16" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br />Methuselah star<sup id="cite_ref-Hubble20130307_2-1" class="reference"><a href="#cite_note-Hubble20130307-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </th> <td> </td></tr> <tr> <td style="background-color: #ffffc0;text-align: right;" colspan="2"><small><a href="/wiki/Template:%E5%A4%A9%E4%BD%93_%E5%9F%BA%E6%9C%AC" title="Template:天体基本">■</a>Template （<a href="/wiki/Template%E2%80%90%E3%83%8E%E3%83%BC%E3%83%88:%E5%A4%A9%E4%BD%93_%E5%9F%BA%E6%9C%AC" title="Template‐ノート:天体基本">■</a>ノート <a href="/wiki/Template:%E5%A4%A9%E4%BD%93_%E5%9F%BA%E6%9C%AC/doc" title="Template:天体基本/doc">■</a>解説） <a href="/wiki/%E3%83%97%E3%83%AD%E3%82%B8%E3%82%A7%E3%82%AF%E3%83%88:%E5%A4%A9%E4%BD%93" title="プロジェクト:天体">■Project</a> </small> </td></tr></tbody></table> <p><b>HD 140283</b>は、地球から見て<a href="/wiki/%E3%81%A6%E3%82%93%E3%81%B3%E3%82%93%E5%BA%A7" title="てんびん座">てんびん座</a>の方向に約200<a href="/wiki/%E5%85%89%E5%B9%B4" title="光年">光年</a>離れた位置にある<a href="/wiki/%E6%81%92%E6%98%9F" title="恒星">恒星</a>である。その極めて少ない<a href="/wiki/%E9%87%91%E5%B1%9E%E9%87%8F" title="金属量">金属量</a>から、<a href="/wiki/%E5%AE%87%E5%AE%99%E3%81%AE%E5%B9%B4%E9%BD%A2" title="宇宙の年齢">宇宙の年齢</a>(137.2 ± 1.2億年)に匹敵するか、<b>宇宙そのものより歴史が古い</b>と考えられている<a href="/wiki/%E5%A4%A9%E4%BD%93" title="天体">天体</a>として知られる<sup id="cite_ref-Hubble20130307_2-2" class="reference"><a href="#cite_note-Hubble20130307-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-BondNelan2013_3-5" class="reference"><a href="#cite_note-BondNelan2013-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>。 </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="物理的特徴と年齢"><span id=".E7.89.A9.E7.90.86.E7.9A.84.E7.89.B9.E5.BE.B4.E3.81.A8.E5.B9.B4.E9.BD.A2"></span>物理的特徴と年齢</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HD_140283&action=edit&section=1" title="節を編集: 物理的特徴と年齢"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/%E3%82%A6%E3%82%A3%E3%83%AB%E3%82%BD%E3%83%B3%E5%B1%B1%E5%A4%A9%E6%96%87%E5%8F%B0" title="ウィルソン山天文台">ウィルソン山天文台</a>にある世界最大級の光赤外干渉計「CHARA」を使った2018年の研究では、表面温度は<a href="/wiki/%E5%A4%AA%E9%99%BD" title="太陽">太陽</a> (5772 K)に比べてわずかに高い5787<a href="/wiki/%E3%82%B1%E3%83%AB%E3%83%93%E3%83%B3" title="ケルビン">K</a>、半径は太陽の2.04倍、光度は4.82倍程度と推測されている<sup id="cite_ref-KarovicovaWhite2018_6-3" class="reference"><a href="#cite_note-KarovicovaWhite2018-6"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>。 </p><p>HD 140283は<a href="/wiki/%E5%9B%BA%E6%9C%89%E9%81%8B%E5%8B%95" title="固有運動">固有運動</a>が非常に大きいため、元々<a href="/wiki/%E5%A4%A9%E3%81%AE%E5%B7%9D%E9%8A%80%E6%B2%B3" class="mw-redirect" title="天の川銀河">天の川銀河</a>に属していた天体ではなく、天の川銀河に吸収された<a href="/wiki/%E7%9F%AE%E5%B0%8F%E9%8A%80%E6%B2%B3" title="矮小銀河">矮小銀河</a>で誕生したものと考えられている<sup id="cite_ref-Hubble20130307_2-3" class="reference"><a href="#cite_note-Hubble20130307-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>。 </p><p>HD 140283は、<a href="/wiki/%E9%89%84" title="鉄">鉄</a>と<a href="/wiki/%E6%B0%B4%E7%B4%A0" title="水素">水素</a>の存在比 ([Fe/H]) で表される<a href="/wiki/%E9%87%91%E5%B1%9E%E9%87%8F" title="金属量">金属量</a>が-2.40（太陽の約0.4％）と低い値を持つ低金属星である<sup id="cite_ref-BondNelan2013_3-6" class="reference"><a href="#cite_note-BondNelan2013-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>。微量ながらも金属を含んでいるため、<a href="/wiki/%E6%98%9F%E3%81%AE%E7%A8%AE%E6%97%8F" title="星の種族">種族III</a>(宇宙最初期の<a href="/wiki/%E3%83%93%E3%83%83%E3%82%B0%E3%83%90%E3%83%B3%E5%8E%9F%E5%AD%90%E6%A0%B8%E5%90%88%E6%88%90" class="mw-redirect" title="ビッグバン原子核合成">ビッグバン原子核合成</a>で生成される<a href="/wiki/%E6%B0%B4%E7%B4%A0" title="水素">水素</a>と<a href="/wiki/%E3%83%98%E3%83%AA%E3%82%A6%E3%83%A0" title="ヘリウム">ヘリウム</a>のみで構成され、金属を全く含んでいない)の恒星には該当せず<sup id="cite_ref-Hubble20130307_2-4" class="reference"><a href="#cite_note-Hubble20130307-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>、<a href="/wiki/%E6%98%9F%E3%81%AE%E7%A8%AE%E6%97%8F" title="星の種族">種族II</a>(既に別の恒星が<a href="/wiki/%E8%B6%85%E6%96%B0%E6%98%9F" title="超新星">超新星</a>爆発を起こし、それによって生じた重元素で「汚染」されている)に分類される<sup id="cite_ref-Hubble20130307_2-5" class="reference"><a href="#cite_note-Hubble20130307-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>。年齢は136億6000万年から152億6000万年と推定されている。これは不確かさが大きいものの、それまでで最も古い恒星であった<a href="/wiki/HE_1523-0901" title="HE 1523-0901">HE 1523-0901</a>の132億年<sup id="cite_ref-FrebelChristlieb2007_8-0" class="reference"><a href="#cite_note-FrebelChristlieb2007-8"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>より古い。これは<a href="/wiki/%E3%83%97%E3%83%A9%E3%83%B3%E3%82%AF_(%E4%BA%BA%E5%B7%A5%E8%A1%9B%E6%98%9F)" title="プランク (人工衛星)">プランク</a>の観測結果から推定される宇宙の年齢（137.99 ± 0.21億年）と矛盾する可能性がある<sup id="cite_ref-Hubble20130307_2-6" class="reference"><a href="#cite_note-Hubble20130307-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-BondNelan2013_3-7" class="reference"><a href="#cite_note-BondNelan2013-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>。また年齢ではなく時代で考えると、133億6000万年前の天体である<a href="/wiki/UDFj-39546284" title="UDFj-39546284">UDFj-39546284</a><sup id="cite_ref-EllisMcLure2013_9-0" class="reference"><a href="#cite_note-EllisMcLure2013-9"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>や、133億年前の天体である<a href="/wiki/MACS0647-JD" title="MACS0647-JD">MACS0647-JD</a><sup id="cite_ref-CoeZitrin2013_10-0" class="reference"><a href="#cite_note-CoeZitrin2013-10"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup>と比べても古い。<a href="/wiki/%E3%82%A2%E3%83%A1%E3%83%AA%E3%82%AB%E8%88%AA%E7%A9%BA%E5%AE%87%E5%AE%99%E5%B1%80" title="アメリカ航空宇宙局">NASA</a>は「メトシェラ星 (Methuselah star)」というあだ名で呼んでおり<sup id="cite_ref-Hubble20130307_2-7" class="reference"><a href="#cite_note-Hubble20130307-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>、これは<a href="/wiki/%E6%97%A7%E7%B4%84%E8%81%96%E6%9B%B8" title="旧約聖書">旧約聖書</a>で最も長寿な人物である<a href="/wiki/%E3%83%A1%E3%83%88%E3%82%B7%E3%82%A7%E3%83%A9" title="メトシェラ">メトシェラ</a>に因んでいる。 </p><p>HD 140283の年齢は、恒星に含まれる金属量と表面温度の値からまず144億6000万年とされた。それのみでの<a href="/wiki/%E4%B8%8D%E7%A2%BA%E3%81%8B%E3%81%95_(%E6%B8%AC%E5%AE%9A)" title="不確かさ (測定)">不確かさ</a>は3億1000万年である。更にいくつかの値の不確かさを導入すると、年齢の不確かさは8億0000万年となった。不確かさの値が大きくなったのは、特に酸素量の不確かさに起因する<sup id="cite_ref-BondNelan2013_3-8" class="reference"><a href="#cite_note-BondNelan2013-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>。これらの値は、<a href="/wiki/2000%E5%B9%B4" title="2000年">2000年</a>の段階で算出された「少なくとも140億年であり最大でも160億年」という年齢や<sup id="cite_ref-Hubble20130307_2-8" class="reference"><a href="#cite_note-Hubble20130307-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-VandenBerg2000_11-0" class="reference"><a href="#cite_note-VandenBerg2000-11"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup>、<a href="/wiki/2002%E5%B9%B4" title="2002年">2002年</a>の段階で算出された「120億年から150億年」<sup id="cite_ref-BondNelan2013_3-9" class="reference"><a href="#cite_note-BondNelan2013-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>という年齢よりも改善されている。 </p> <table class="wikitable"> <caption>HD 140283の年齢の<a href="/wiki/%E4%B8%8D%E7%A2%BA%E3%81%8B%E3%81%95_(%E6%B8%AC%E5%AE%9A)" title="不確かさ (測定)">不確かさ</a>の要素<sup id="cite_ref-BondNelan2013_3-10" class="reference"><a href="#cite_note-BondNelan2013-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </caption> <tbody><tr> <th>要素</th> <th>値</th> <th>不確かさ<br />（億年） </th></tr> <tr> <td><a href="/wiki/%E5%B9%B4%E5%91%A8%E8%A6%96%E5%B7%AE" title="年周視差">年周視差</a> (<a href="/wiki/%E7%A7%92_(%E8%A7%92%E5%BA%A6)" title="秒 (角度)">mas</a>/年)</td> <td>17.15 ± 0.14</td> <td>±2.1 </td></tr> <tr> <td>視等級 (等級)</td> <td>7.205 ± 0.02</td> <td>±2.3 </td></tr> <tr> <td>E(B - V)</td> <td>0.000 ± 0.002</td> <td>±0.6 </td></tr> <tr> <td>表面温度 (<a href="/wiki/%E3%82%B1%E3%83%AB%E3%83%93%E3%83%B3" title="ケルビン">K</a>)</td> <td>5777 ± 55</td> <td>±3.5 </td></tr> <tr> <td><a href="/wiki/%E9%87%91%E5%B1%9E%E9%87%8F" title="金属量">金属量</a> [Fe/H]</td> <td>-2.40 ± 0.10</td> <td>±1.0 </td></tr> <tr> <td>酸素量 [O/H]</td> <td>-1.67 ± 0.15</td> <td>±6.1 </td></tr> <tr> <td>窒素量 (solar log <i>N</i>)</td> <td>8.69 ± 0.05</td> <td>±2.0 </td></tr> <tr> <td colspan="2">合計の不確かさ</td> <td>±8.0 </td></tr></tbody></table> <p>HD 140283の年齢は更に不確かさを引き下げる事が可能である。特に酸素の量が予想より高いため、宇宙に存在する酸素の量と比較すれば、HD 140283の年齢を引き下げ、恐らく宇宙の年齢以下にすることが可能である<sup id="cite_ref-Hubble20130307_2-9" class="reference"><a href="#cite_note-Hubble20130307-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>。 </p> <div class="mw-heading mw-heading2"><h2 id="脚注"><span id=".E8.84.9A.E6.B3.A8"></span>脚注</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HD_140283&action=edit&section=2" title="節を編集: 脚注"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="noprint" style="float:right; font-size:90%;">[<a href="/wiki/Help:%E8%84%9A%E6%B3%A8/%E8%AA%AD%E8%80%85%E5%90%91%E3%81%91" title="Help:脚注/読者向け"><span title="この欄の操作法">脚注の使い方</span></a>]</div> <div class="mw-heading mw-heading3"><h3 id="注釈"><span id=".E6.B3.A8.E9.87.88"></span>注釈</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HD_140283&action=edit&section=3" title="節を編集: 注釈"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-注dist-4">^ <a href="#cite_ref-注dist_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-注dist_4-1"><sup><i><b>b</b></i></sup></a> <span class="reference-text">パーセクは1 ÷ 年周視差（秒）より計算、光年は1÷年周視差（秒）×3.2615638より計算</span> </li> <li id="cite_note-5"><b><a href="#cite_ref-5">^</a></b> <span class="reference-text">視等級 + 5 + 5×log（年周視差（秒））より計算。小数第1位まで表記</span> </li> </ol></div> <div class="mw-heading mw-heading3"><h3 id="出典"><span id=".E5.87.BA.E5.85.B8"></span>出典</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HD_140283&action=edit&section=4" title="節を編集: 出典"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist" style="-moz-column-count:auto; -webkit-column-count:auto; column-count:auto; -moz-column-width: 30em; -webkit-column-width: 30em; column-width: 30em; list-style-type: decimal;"> <ol class="references"> <li id="cite_note-SIMBAD-1">^ <a href="#cite_ref-SIMBAD_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-8"><sup><i><b>i</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-9"><sup><i><b>j</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-10"><sup><i><b>k</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-11"><sup><i><b>l</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-12"><sup><i><b>m</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-13"><sup><i><b>n</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-14"><sup><i><b>o</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-15"><sup><i><b>p</b></i></sup></a> <a href="#cite_ref-SIMBAD_1-16"><sup><i><b>q</b></i></sup></a> <span class="reference-text"><cite class="citation web" style="font-style:normal">“<a rel="nofollow" class="external text" href="https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+140283">HD 140283 -- Variable Star</a>”. <i>SIMBAD</i>.  <a href="/wiki/%E3%82%B9%E3%83%88%E3%83%A9%E3%82%B9%E3%83%96%E3%83%BC%E3%83%AB%E5%A4%A9%E6%96%87%E3%83%87%E3%83%BC%E3%82%BF%E3%82%BB%E3%83%B3%E3%82%BF%E3%83%BC" title="ストラスブール天文データセンター">CDS</a>. <span title="">2019年5月13日</span>閲覧。</cite></span> </li> <li id="cite_note-Hubble20130307-2">^ <a href="#cite_ref-Hubble20130307_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Hubble20130307_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Hubble20130307_2-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Hubble20130307_2-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-Hubble20130307_2-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-Hubble20130307_2-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-Hubble20130307_2-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-Hubble20130307_2-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-Hubble20130307_2-8"><sup><i><b>i</b></i></sup></a> <a href="#cite_ref-Hubble20130307_2-9"><sup><i><b>j</b></i></sup></a> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r101121245">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation.cs-ja1 q,.mw-parser-output .citation.cs-ja2 q{quotes:"「""」""『""』"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:var(--color-success,#3a3);margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output 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(2013). “CLASH: Three Strongly Lensed Images of a Candidate z ≈ 11 Galaxy”. <i><a href="/wiki/%E3%82%A2%E3%82%B9%E3%83%88%E3%83%AD%E3%83%95%E3%82%A3%E3%82%B8%E3%82%AB%E3%83%AB%E3%82%B8%E3%83%A3%E3%83%BC%E3%83%8A%E3%83%AB" title="アストロフィジカルジャーナル">The Astrophysical Journal</a></i> <b>762</b> (1): 32. <a href="/wiki/ArXiv_(%E8%AD%98%E5%88%A5%E5%AD%90)" class="mw-redirect" title="ArXiv (識別子)">arXiv</a>:<a href="https://arxiv.org/abs/1211.3663" class="extiw" title="arxiv:1211.3663">1211.3663</a>. <a href="/wiki/Bibcode_(%E8%AD%98%E5%88%A5%E5%AD%90)" class="mw-redirect" title="Bibcode (識別子)">Bibcode</a>: <a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2013ApJ...762...32C/abstract">2013ApJ...762...32C</a>. <a href="/wiki/Doi_(%E8%AD%98%E5%88%A5%E5%AD%90)" class="mw-redirect" title="Doi (識別子)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1088%2F0004-637X%2F762%2F1%2F32">10.1088/0004-637X/762/1/32</a>. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245"><a href="/wiki/ISSN" title="ISSN">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/ja/search?fq=x0:jrnl&q=n2:0004-637X">0004-637X</a>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=CLASH%3A+Three+Strongly+Lensed+Images+of+a+Candidate+z+%E2%89%88+11+Galaxy&rft.jtitle=%5B%5B%E3%82%A2%E3%82%B9%E3%83%88%E3%83%AD%E3%83%95%E3%82%A3%E3%82%B8%E3%82%AB%E3%83%AB%E3%82%B8%E3%83%A3%E3%83%BC%E3%83%8A%E3%83%AB%7CThe+Astrophysical+Journal%5D%5D&rft.aulast=Coe&rft.aufirst=Dan&rft.au=Coe%2C%26%2332%3BDan&rft.au=Zitrin%2C%26%2332%3BAdi&rft.au=Carrasco%2C%26%2332%3BMauricio&rft.au=Shu%2C%26%2332%3BXinwen&rft.au=Zheng%2C%26%2332%3BWei&rft.au=Postman%2C%26%2332%3BMarc&rft.au=Bradley%2C%26%2332%3BLarry&rft.au=Koekemoer%2C%26%2332%3BAnton&rft.au=Bouwens%2C%26%2332%3BRychard&rft.date=2013&rft.volume=762&rft.issue=1&rft.pages=32&rft_id=info:arxiv/1211.3663&rft_id=info:bibcode/2013ApJ...762...32C&rft_id=info:doi/10.1088%2F0004-637X%2F762%2F1%2F32&rft.issn=0004-637X&rfr_id=info:sid/ja.wikipedia.org:HD_140283"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-VandenBerg2000-11"><b><a href="#cite_ref-VandenBerg2000_11-0">^</a></b> <span class="reference-text"><cite style="font-style:normal" class="citation journal">VandenBerg, Don A. (2000). “Models for Old, Metal‐Poor Stars with Enhanced α‐Element Abundances. II. Their Implications for the Ages of the Galaxy’s Globular Clusters and Field Halo Stars”. <i>The Astrophysical Journal Supplement Series</i> <b>129</b> (1): 315-352. <a href="/wiki/Bibcode_(%E8%AD%98%E5%88%A5%E5%AD%90)" class="mw-redirect" title="Bibcode (識別子)">Bibcode</a>: <a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2000ApJS..129..315V/abstract">2000ApJS..129..315V</a>. <a href="/wiki/Doi_(%E8%AD%98%E5%88%A5%E5%AD%90)" class="mw-redirect" title="Doi (識別子)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F313404">10.1086/313404</a>. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245"><a href="/wiki/ISSN" title="ISSN">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/ja/search?fq=x0:jrnl&q=n2:0067-0049">0067-0049</a>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Models+for+Old%2C+Metal%E2%80%90Poor+Stars+with+Enhanced+%CE%B1%E2%80%90Element+Abundances.+II.+Their+Implications+for+the+Ages+of+the+Galaxy%E2%80%99s+Globular+Clusters+and+Field+Halo+Stars&rft.jtitle=The+Astrophysical+Journal+Supplement+Series&rft.aulast=VandenBerg&rft.aufirst=Don+A.&rft.au=VandenBerg%2C%26%2332%3BDon+A.&rft.date=2000&rft.volume=129&rft.issue=1&rft.pages=315-352&rft_id=info:bibcode/2000ApJS..129..315V&rft_id=info:doi/10.1086%2F313404&rft.issn=0067-0049&rfr_id=info:sid/ja.wikipedia.org:HD_140283"><span style="display: none;"> </span></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="関連項目"><span id=".E9.96.A2.E9.80.A3.E9.A0.85.E7.9B.AE"></span>関連項目</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HD_140283&action=edit&section=5" title="節を編集: 関連項目"><span>編集</span></a><span 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