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Ефективна температура – Уикипедия

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data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Облик" > <label id="vector-appearance-dropdown-label" for="vector-appearance-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-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Облик</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&amp;utm_medium=sidebar&amp;utm_campaign=C13_bg.wikipedia.org&amp;uselang=bg" class=""><span>Направете дарение</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%A1%D1%8A%D0%B7%D0%B4%D0%B0%D0%B2%D0%B0%D0%BD%D0%B5_%D0%BD%D0%B0_%D1%81%D0%BC%D0%B5%D1%82%D0%BA%D0%B0&amp;returnto=%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0+%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0" title="Насърчаваме Ви да си създадете сметка и да влезете, въпреки че не е задължително." class=""><span>Създаване на сметка</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%A0%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B8%D1%80%D0%B0%D0%BD%D0%B5_%D0%B8%D0%BB%D0%B8_%D0%B2%D0%BB%D0%B8%D0%B7%D0%B0%D0%BD%D0%B5&amp;returnto=%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0+%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0" title="Препоръчваме Ви да влезете, въпреки, че не е задължително. [o]" accesskey="o" class=""><span>Влизане</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Допълнителни опции" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Лични инструменти" > <label id="vector-user-links-dropdown-label" 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">Лични инструменти</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Потребителско меню" > <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="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&amp;utm_medium=sidebar&amp;utm_campaign=C13_bg.wikipedia.org&amp;uselang=bg"><span>Направете дарение</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%A1%D1%8A%D0%B7%D0%B4%D0%B0%D0%B2%D0%B0%D0%BD%D0%B5_%D0%BD%D0%B0_%D1%81%D0%BC%D0%B5%D1%82%D0%BA%D0%B0&amp;returnto=%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0+%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0" title="Насърчаваме Ви да си създадете сметка и да влезете, въпреки че не е задължително."><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Създаване на сметка</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%A0%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B8%D1%80%D0%B0%D0%BD%D0%B5_%D0%B8%D0%BB%D0%B8_%D0%B2%D0%BB%D0%B8%D0%B7%D0%B0%D0%BD%D0%B5&amp;returnto=%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0+%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0" title="Препоръчваме Ви да влезете, въпреки, че не е задължително. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Влизане</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"> Страници за излезли от системата редактори <a href="/wiki/%D0%9F%D0%BE%D0%BC%D0%BE%D1%89:%D0%92%D1%8A%D0%B2%D0%B5%D0%B4%D0%B5%D0%BD%D0%B8%D0%B5" aria-label="Научете повече за редактирането"><span>научете повече</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/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%9C%D0%BE%D0%B8%D1%82%D0%B5_%D0%BF%D1%80%D0%B8%D0%BD%D0%BE%D1%81%D0%B8" title="Списък на промените, направени от този IP адрес [y]" accesskey="y"><span>Приноси</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%9C%D0%BE%D1%8F%D1%82%D0%B0_%D0%B1%D0%B5%D1%81%D0%B5%D0%B4%D0%B0" title="Дискусия относно редакциите от този адрес [n]" accesskey="n"><span>Беседа</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"><!-- CentralNotice --></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="Сайт"> <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="Съдържание" 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">Съдържание</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">преместване към страничната лента</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">скриване</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">Начало</div> </a> </li> <li id="toc-Звезди" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Звезди"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Звезди</span> </div> </a> <ul id="toc-Звезди-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Планети" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Планети"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Планети</span> </div> </a> <ul id="toc-Планети-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Източници" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Източници"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Източници</span> </div> </a> <ul id="toc-Източници-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="Съдържание" 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="Скриване/показване на съдържанието" > <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">Скриване/показване на съдържанието</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">Ефективна температура</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="Към статията на друг език. Налична на 42 езика" > <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-42" 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">42 езика</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/Effektiewe_temperatuur" title="Effektiewe temperatuur – африканс" lang="af" hreflang="af" data-title="Effektiewe temperatuur" data-language-autonym="Afrikaans" data-language-local-name="африканс" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AF%D8%B1%D8%AC%D8%A9_%D8%A7%D9%84%D8%AD%D8%B1%D8%A7%D8%B1%D8%A9_%D8%A7%D9%84%D9%81%D8%B9%D8%A7%D9%84%D8%A9" title="درجة الحرارة الفعالة – арабски" lang="ar" hreflang="ar" data-title="درجة الحرارة الفعالة" data-language-autonym="العربية" data-language-local-name="арабски" 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/Temperatura_efectivo" title="Temperatura efectivo – астурски" lang="ast" hreflang="ast" data-title="Temperatura efectivo" data-language-autonym="Asturianu" data-language-local-name="астурски" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Temperatura_efectiva" title="Temperatura efectiva – каталонски" lang="ca" hreflang="ca" data-title="Temperatura efectiva" data-language-autonym="Català" data-language-local-name="каталонски" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Efektivn%C3%AD_teplota" title="Efektivní teplota – чешки" lang="cs" hreflang="cs" data-title="Efektivní teplota" data-language-autonym="Čeština" data-language-local-name="чешки" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%AD%D1%84%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BB%C4%83_%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0" title="Эффективлă температура – чувашки" lang="cv" hreflang="cv" data-title="Эффективлă температура" data-language-autonym="Чӑвашла" data-language-local-name="чувашки" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Effektiv_temperatur_(stjerne)" title="Effektiv temperatur (stjerne) – датски" lang="da" hreflang="da" data-title="Effektiv temperatur (stjerne)" data-language-autonym="Dansk" data-language-local-name="датски" 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/Effektive_Temperatur" title="Effektive Temperatur – немски" lang="de" hreflang="de" data-title="Effektive Temperatur" data-language-autonym="Deutsch" data-language-local-name="немски" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%95%CE%BD%CE%B5%CF%81%CE%B3%CF%8C%CF%82_%CE%B8%CE%B5%CF%81%CE%BC%CE%BF%CE%BA%CF%81%CE%B1%CF%83%CE%AF%CE%B1" title="Ενεργός θερμοκρασία – гръцки" lang="el" hreflang="el" data-title="Ενεργός θερμοκρασία" data-language-autonym="Ελληνικά" data-language-local-name="гръцки" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Effective_temperature" title="Effective temperature – английски" lang="en" hreflang="en" data-title="Effective temperature" data-language-autonym="English" data-language-local-name="английски" 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/Efika_temperaturo" title="Efika temperaturo – есперанто" lang="eo" hreflang="eo" data-title="Efika temperaturo" data-language-autonym="Esperanto" data-language-local-name="есперанто" 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/Temperatura_efectiva" title="Temperatura efectiva – испански" lang="es" hreflang="es" data-title="Temperatura efectiva" data-language-autonym="Español" data-language-local-name="испански" 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/Tenperatura_efektibo" title="Tenperatura efektibo – баски" lang="eu" hreflang="eu" data-title="Tenperatura efektibo" data-language-autonym="Euskara" data-language-local-name="баски" 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%AF%D9%85%D8%A7%DB%8C_%D9%85%D8%A4%D8%AB%D8%B1" title="دمای مؤثر – персийски" lang="fa" hreflang="fa" data-title="دمای مؤثر" data-language-autonym="فارسی" data-language-local-name="персийски" 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/Pintal%C3%A4mp%C3%B6tila" title="Pintalämpötila – фински" lang="fi" hreflang="fi" data-title="Pintalämpötila" data-language-autonym="Suomi" data-language-local-name="фински" 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/Temp%C3%A9rature_effective" title="Température effective – френски" lang="fr" hreflang="fr" data-title="Température effective" data-language-autonym="Français" data-language-local-name="френски" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Suhu_efektif" title="Suhu efektif – индонезийски" lang="id" hreflang="id" data-title="Suhu efektif" data-language-autonym="Bahasa Indonesia" data-language-local-name="индонезийски" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ig mw-list-item"><a href="https://ig.wikipedia.org/wiki/Okpom%E1%BB%8Dk%E1%BB%A5_d%E1%BB%8B_ir%C3%A8" title="Okpomọkụ dị irè – игбо" lang="ig" hreflang="ig" data-title="Okpomọkụ dị irè" data-language-autonym="Igbo" data-language-local-name="игбо" class="interlanguage-link-target"><span>Igbo</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Temperatura_efficace" title="Temperatura efficace – италиански" lang="it" hreflang="it" data-title="Temperatura efficace" data-language-autonym="Italiano" data-language-local-name="италиански" 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/%E6%9C%89%E5%8A%B9%E6%B8%A9%E5%BA%A6" title="有効温度 – японски" lang="ja" hreflang="ja" data-title="有効温度" data-language-autonym="日本語" data-language-local-name="японски" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/Ta%E1%BA%93%C9%A3elt_tamellilt" title="Taẓɣelt tamellilt – кабилски" lang="kab" hreflang="kab" data-title="Taẓɣelt tamellilt" data-language-autonym="Taqbaylit" data-language-local-name="кабилски" class="interlanguage-link-target"><span>Taqbaylit</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%9C%A0%ED%9A%A8%EC%98%A8%EB%8F%84" title="유효온도 – корейски" lang="ko" hreflang="ko" data-title="유효온도" data-language-autonym="한국어" data-language-local-name="корейски" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Effektiv_Temperatur" title="Effektiv Temperatur – люксембургски" lang="lb" hreflang="lb" data-title="Effektiv Temperatur" data-language-autonym="Lëtzebuergesch" data-language-local-name="люксембургски" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Efektin%C4%97_temperat%C5%ABra" title="Efektinė temperatūra – литовски" lang="lt" hreflang="lt" data-title="Efektinė temperatūra" data-language-autonym="Lietuvių" data-language-local-name="литовски" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%94%D0%B5%D0%BB%D0%BE%D1%82%D0%B2%D0%BE%D1%80%D0%BD%D0%B0_%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0" title="Делотворна температура – македонски" lang="mk" hreflang="mk" data-title="Делотворна температура" data-language-autonym="Македонски" data-language-local-name="македонски" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Suhu_berkesan" title="Suhu berkesan – малайски" lang="ms" hreflang="ms" data-title="Suhu berkesan" data-language-autonym="Bahasa Melayu" data-language-local-name="малайски" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Effectieve_temperatuur" title="Effectieve temperatuur – нидерландски" lang="nl" hreflang="nl" data-title="Effectieve temperatuur" data-language-autonym="Nederlands" data-language-local-name="нидерландски" 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/Effektiv_temperatur" title="Effektiv temperatur – норвежки (нюношк)" lang="nn" hreflang="nn" data-title="Effektiv temperatur" data-language-autonym="Norsk nynorsk" data-language-local-name="норвежки (нюношк)" 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/Effektiv_temperatur" title="Effektiv temperatur – норвежки (букмол)" lang="nb" hreflang="nb" data-title="Effektiv temperatur" data-language-autonym="Norsk bokmål" data-language-local-name="норвежки (букмол)" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Temperatura_efektywna_(fizyka)" title="Temperatura efektywna (fizyka) – полски" lang="pl" hreflang="pl" data-title="Temperatura efektywna (fizyka)" data-language-autonym="Polski" data-language-local-name="полски" 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/Temperatura_efetiva" title="Temperatura efetiva – португалски" lang="pt" hreflang="pt" data-title="Temperatura efetiva" data-language-autonym="Português" data-language-local-name="португалски" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Temperatur%C4%83_efectiv%C4%83" title="Temperatură efectivă – румънски" lang="ro" hreflang="ro" data-title="Temperatură efectivă" data-language-autonym="Română" data-language-local-name="румънски" 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%AD%D1%84%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0%D1%8F_%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0" title="Эффективная температура – руски" lang="ru" hreflang="ru" data-title="Эффективная температура" data-language-autonym="Русский" data-language-local-name="руски" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Effective_temperature" title="Effective temperature – Simple English" lang="en-simple" hreflang="en-simple" data-title="Effective temperature" 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-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Efektivna_temperatura" title="Efektivna temperatura – словенски" lang="sl" hreflang="sl" data-title="Efektivna temperatura" data-language-autonym="Slovenščina" data-language-local-name="словенски" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Effektiv_temperatur" title="Effektiv temperatur – шведски" lang="sv" hreflang="sv" data-title="Effektiv temperatur" data-language-autonym="Svenska" data-language-local-name="шведски" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AD%E0%B8%B8%E0%B8%93%E0%B8%AB%E0%B8%A0%E0%B8%B9%E0%B8%A1%E0%B8%B4%E0%B8%A2%E0%B8%B1%E0%B8%87%E0%B8%9C%E0%B8%A5" title="อุณหภูมิยังผล – тайски" lang="th" hreflang="th" data-title="อุณหภูมิยังผล" data-language-autonym="ไทย" data-language-local-name="тайски" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Etkin_s%C4%B1cakl%C4%B1k" title="Etkin sıcaklık – турски" lang="tr" hreflang="tr" data-title="Etkin sıcaklık" data-language-autonym="Türkçe" data-language-local-name="турски" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0_%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0" title="Ефективна температура – украински" lang="uk" hreflang="uk" data-title="Ефективна температура" data-language-autonym="Українська" data-language-local-name="украински" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Samarador_harorat" title="Samarador harorat – узбекски" lang="uz" hreflang="uz" data-title="Samarador harorat" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="узбекски" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Nhi%E1%BB%87t_%C4%91%E1%BB%99_hi%E1%BB%87u_d%E1%BB%A5ng" title="Nhiệt độ hiệu dụng – виетнамски" lang="vi" hreflang="vi" data-title="Nhiệt độ 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class="mw-list-item"><a href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:DownloadAsPdf&amp;page=%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0_%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0&amp;action=show-download-screen"><span>Изтегляне като PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0_%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0&amp;printable=yes" title="Версия за печат на страницата [p]" accesskey="p"><span>Версия за печат</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"> В други проекти </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q854050" title="Препратка към свързания обект от хранилището за данни [g]" accesskey="g"><span>Обект в Уикиданни</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="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Облик"> <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">Облик</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">преместване към страничната лента</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">скриване</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">от Уикипедия, свободната енциклопедия</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="bg" dir="ltr"><p><b>Ефективната температура</b> на дадено <a href="/wiki/%D0%9D%D0%B5%D0%B1%D0%B5%D1%81%D0%BD%D0%BE_%D1%82%D1%8F%D0%BB%D0%BE" class="mw-redirect" title="Небесно тяло">небесно тяло</a> (например <a href="/wiki/%D0%97%D0%B2%D0%B5%D0%B7%D0%B4%D0%B0" title="Звезда">звезда</a> или <a href="/wiki/%D0%9F%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Планета">планета</a>) е <a href="/wiki/%D0%A2%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0" title="Температура">температурата</a> на <a href="/wiki/%D0%90%D0%B1%D1%81%D0%BE%D0%BB%D1%8E%D1%82%D0%BD%D0%BE_%D1%87%D0%B5%D1%80%D0%BD%D0%BE_%D1%82%D1%8F%D0%BB%D0%BE" title="Абсолютно черно тяло">абсолютно черно тяло</a>, което би излъчило същото количество <a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D0%BE_%D0%BB%D1%8A%D1%87%D0%B5%D0%BD%D0%B8%D0%B5" class="mw-redirect" title="Електромагнитно лъчение">електромагнитно лъчение</a>.<sup id="cite_ref-Archie2003_1-0" class="reference"><a href="#cite_note-Archie2003-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> Ефективната температура често се използва за оценка на повърхностната температура на дадено тяло, когато неговата крива на излъчване (като функция на <a href="/wiki/%D0%94%D1%8A%D0%BB%D0%B6%D0%B8%D0%BD%D0%B0_%D0%BD%D0%B0_%D0%B2%D1%8A%D0%BB%D0%BD%D0%B0%D1%82%D0%B0" title="Дължина на вълната">дължината на вълната</a>) не е известна. </p><p>Когато <a href="/w/index.php?title=%D0%95%D0%BC%D0%B8%D1%81%D0%B8%D0%B2%D0%BD%D0%BE%D1%81%D1%82&amp;action=edit&amp;redlink=1" class="new" title="Емисивност (страницата не съществува)">емисивността</a> на дадена звезда или планета в съответния вълнови диапазон е по-малка от единица (по-малка от тази на абсолютно черно тяло), реалната температура на небесното тяло е по-висока от ефективната му температура. Емисивността може да е ниска, поради повърхностните или атмосферните свойства (включително и <a href="/wiki/%D0%9F%D0%B0%D1%80%D0%BD%D0%B8%D0%BA%D0%BE%D0%B2_%D0%B5%D1%84%D0%B5%D0%BA%D1%82" title="Парников ефект">парников ефект</a>). </p> <div class="mw-heading mw-heading2"><h2 id="Звезди"><span id=".D0.97.D0.B2.D0.B5.D0.B7.D0.B4.D0.B8"></span>Звезди</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0_%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0&amp;veaction=edit&amp;section=1" title="Редактиране на раздел: Звезди" class="mw-editsection-visualeditor"><span>редактиране</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0_%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0&amp;action=edit&amp;section=1" title="Edit section&#039;s source code: Звезди"><span>редактиране на кода</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ефективната температура на звезда е температурата на абсолютно черно тяло със същата <a href="/wiki/%D0%A1%D0%B2%D0%B5%D1%82%D0%B8%D0%BC%D0%BE%D1%81%D1%82" title="Светимост">светимост</a> на единица площ (пълна мощност на излъчване) (<span style="white-space: nowrap; font-family: times, serif, palatino linotype, new athena unicode, athena, gentium, code2000; font-size: 120%;"><i>F</i><sub>Bol</sub></span>). Според <a href="/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%A1%D1%82%D0%B5%D1%84%D0%B0%D0%BD_%E2%80%93_%D0%91%D0%BE%D0%BB%D1%86%D0%BC%D0%B0%D0%BD" title="Закон на Стефан – Болцман">закона на Стефан – Болцман</a>, <span style="white-space: nowrap; font-family: times, serif, palatino linotype, new athena unicode, athena, gentium, code2000; font-size: 120%;"><i>F</i><sub>Bol</sub>= <i>σT</i><sub>eff</sub><sup>4</sup></span>. Общата (<a href="/wiki/%D0%90%D0%B1%D1%81%D0%BE%D0%BB%D1%8E%D1%82%D0%BD%D0%B0_%D0%B7%D0%B2%D0%B5%D0%B7%D0%B4%D0%BD%D0%B0_%D0%B2%D0%B5%D0%BB%D0%B8%D1%87%D0%B8%D0%BD%D0%B0" title="Абсолютна звездна величина">болометрична</a>) светимостта на звездата дадена звезда тогава е <span style="white-space: nowrap; font-family: times, serif, palatino linotype, new athena unicode, athena, gentium, code2000; font-size: 120%;"><i>L</i> = 4π<i>R</i><sup>2</sup><i>σT</i><sub>eff</sub><sup>4</sup></span>, където <span style="white-space: nowrap; font-family: times, serif, palatino linotype, new athena unicode, athena, gentium, code2000; font-size: 120%;"><i>R</i></span> е звездният радиус.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> Ефективната температура и болометричната светимост са фундаментални физически параметри, които са нужни за нанасянето на дадена звезда върху <a href="/wiki/%D0%94%D0%B8%D0%B0%D0%B3%D1%80%D0%B0%D0%BC%D0%B0_%D0%BD%D0%B0_%D0%A5%D0%B5%D1%80%D1%86%D1%88%D0%BF%D1%80%D1%83%D0%BD%D0%B3-%D0%A0%D1%8A%D1%81%D0%B5%D0%BB" title="Диаграма на Херцшпрунг-Ръсел">диаграмата на Херцшпрунг-Ръсел</a>. И двата параметъра зависят от химичния състав на звездата. </p><p>Ефективната температура на <a href="/wiki/%D0%A1%D0%BB%D1%8A%D0%BD%D1%86%D0%B5" title="Слънце">Слънцето</a> е около 5780 <a href="/wiki/%D0%9A%D0%B5%D0%BB%D0%B2%D0%B8%D0%BD" title="Келвин">K</a>.<sup id="cite_ref-Ref_4-0" class="reference"><a href="#cite_note-Ref_-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Jones2004_5-0" class="reference"><a href="#cite_note-Jones2004-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> Звездите имат намаляващ температурен градиент от ядрото си към атмосферата си. Температурата в ядрото на Слънцето, където протича <a href="/wiki/%D0%A2%D0%B5%D1%80%D0%BC%D0%BE%D1%8F%D0%B4%D1%80%D0%B5%D0%BD_%D1%81%D0%B8%D0%BD%D1%82%D0%B5%D0%B7" title="Термоядрен синтез">термоядрен синтез</a>, е оценена на около 15 млн. K. </p><p><a href="/w/index.php?title=%D0%A6%D0%B2%D0%B5%D1%82%D0%B5%D0%BD_%D0%BF%D0%BE%D0%BA%D0%B0%D0%B7%D0%B0%D1%82%D0%B5%D0%BB&amp;action=edit&amp;redlink=1" class="new" title="Цветен показател (страницата не съществува)">Цветният показател</a> на дадена звезда говори за температурата ѝ&#160;– от сравнително хладна червена звезда тип M (излъчваща в <a href="/wiki/%D0%98%D0%BD%D1%84%D1%80%D0%B0%D1%87%D0%B5%D1%80%D0%B2%D0%B5%D0%BD%D0%B8_%D0%BB%D1%8A%D1%87%D0%B8" class="mw-redirect" title="Инфрачервени лъчи">инфрачервения</a> диапазон) до много гореща синя звезда тип O (излъчваща в <a href="/wiki/%D0%A3%D0%BB%D1%82%D1%80%D0%B0%D0%B2%D0%B8%D0%BE%D0%BB%D0%B5%D1%82%D0%BE%D0%B2%D0%B8_%D0%BB%D1%8A%D1%87%D0%B8" class="mw-redirect" title="Ултравиолетови лъчи">ултравиолетовия</a> диапазон). Една червена звезда може да е както малко <a href="/wiki/%D0%A7%D0%B5%D1%80%D0%B2%D0%B5%D0%BD%D0%BE_%D0%B4%D0%B6%D1%83%D0%B4%D0%B6%D0%B5" title="Червено джудже">червено джудже</a> с малко енергоотделяне и малка повърхност, така и издут <a href="/wiki/%D0%93%D0%B8%D0%B3%D0%B0%D0%BD%D1%82_(%D0%B7%D0%B2%D0%B5%D0%B7%D0%B4%D0%B0)" title="Гигант (звезда)">гигант</a> или <a href="/wiki/%D0%A1%D0%B2%D1%80%D1%8A%D1%85%D0%B3%D0%B8%D0%B3%D0%B0%D0%BD%D1%82" title="Свръхгигант">свръхгигант</a>, генериращ много повече енергия, но отделящ я през огромна площ, така че излъчването на единица площ е малко. Жълтите звезди от среден клас излъчват повече енергия на единица площ от червените джуджета или червените гиганти, но все още много по-малко от сините или бели звезди. </p> <div class="mw-heading mw-heading2"><h2 id="Планети"><span id=".D0.9F.D0.BB.D0.B0.D0.BD.D0.B5.D1.82.D0.B8"></span>Планети</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0_%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0&amp;veaction=edit&amp;section=2" title="Редактиране на раздел: Планети" class="mw-editsection-visualeditor"><span>редактиране</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0_%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0&amp;action=edit&amp;section=2" title="Edit section&#039;s source code: Планети"><span>редактиране на кода</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ефективната температура на дадена планета може да се изчисли като се сравни получената енергия на планетата с известната излъчена енергия от абсолютно черно тяло с температура <span class="texhtml mvar" style="font-style:italic;">T</span>. Абсорбираната от планетата енергия може да се изрази, като планетата се приеме за диск с радиус <span class="texhtml mvar" style="font-style:italic;">r</span>, който приема част от енергията, получена в сфера с радиус <span class="texhtml mvar" style="font-style:italic;">D</span> (разстоянието на планетата от нейната звезда със светимост <span class="texhtml mvar" style="font-style:italic;">L</span>). Изчислението приема, че планетата отразява част от попадащото излъчване, като въвежда параметър, наречен <a href="/wiki/%D0%90%D0%BB%D0%B1%D0%B5%D0%B4%D0%BE" title="Албедо">албедо</a> (<i>a</i>). Албедо, равняващо се на 1, означава, че се отразяват всички лъчи, докато албедо, равняващо се на 0, означава, че всички се поглъщат всички вълни. Изразът за абсорбирана енергия е: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle P_{\rm {abs}}={\frac {Lr^{2}(1-a)}{4D^{2}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">a</mi> <mi mathvariant="normal">b</mi> <mi mathvariant="normal">s</mi> </mrow> </mrow> </msub> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>L</mi> <msup> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mo stretchy="false">(</mo> <mn>1</mn> <mo>&#x2212;<!-- − --></mo> <mi>a</mi> <mo stretchy="false">)</mo> </mrow> <mrow> <mn>4</mn> <msup> <mi>D</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle P_{\rm {abs}}={\frac {Lr^{2}(1-a)}{4D^{2}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/784d1896283223924529c3312082676decd18403" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.005ex; width:18.771ex; height:6.009ex;" alt="{\displaystyle P_{\rm {abs}}={\frac {Lr^{2}(1-a)}{4D^{2}}}}"></span></dd></dl> <p>Ако се приеме, че цялата планета има еднаква температура <span class="texhtml mvar" style="font-style:italic;">T</span> и че планетата излъчва като абсолютно черно тяло. Законът на Стефан – Болцман позволява да се изрази отделяната енергия от планетата: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle P_{\rm {rad}}=4\pi r^{2}\sigma T^{4}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">r</mi> <mi mathvariant="normal">a</mi> <mi mathvariant="normal">d</mi> </mrow> </mrow> </msub> <mo>=</mo> <mn>4</mn> <mi>&#x03C0;<!-- π --></mi> <msup> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mi>&#x03C3;<!-- σ --></mi> <msup> <mi>T</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle P_{\rm {rad}}=4\pi r^{2}\sigma T^{4}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/00283d706fa6e7efd576b8f710b16cd794abc5ac" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:15.905ex; height:3.009ex;" alt="{\displaystyle P_{\rm {rad}}=4\pi r^{2}\sigma T^{4}}"></span></dd></dl> <p>Съединяването на тези два израза и преподреждането им дава нов израз за ефективната температура: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle T={\sqrt[{4}]{\frac {L(1-a)}{16\pi \sigma D^{2}}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>T</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mroot> <mfrac> <mrow> <mi>L</mi> <mo stretchy="false">(</mo> <mn>1</mn> <mo>&#x2212;<!-- − --></mo> <mi>a</mi> <mo stretchy="false">)</mo> </mrow> <mrow> <mn>16</mn> <mi>&#x03C0;<!-- π --></mi> <mi>&#x03C3;<!-- σ --></mi> <msup> <mi>D</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> </mfrac> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> </mroot> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle T={\sqrt[{4}]{\frac {L(1-a)}{16\pi \sigma D^{2}}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/675d8057a6d70e047acd69ae2bdc3934df5f7d87" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -3.005ex; width:16.519ex; height:7.676ex;" alt="{\displaystyle T={\sqrt[{4}]{\frac {L(1-a)}{16\pi \sigma D^{2}}}}}"></span></dd></dl> <p>където <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \sigma }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>&#x03C3;<!-- σ --></mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \sigma }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/59f59b7c3e6fdb1d0365a494b81fb9a696138c36" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.33ex; height:1.676ex;" alt="{\displaystyle \sigma }"></span> е <a href="/wiki/%D0%9A%D0%BE%D0%BD%D1%81%D1%82%D0%B0%D0%BD%D1%82%D0%B0_%D0%BD%D0%B0_%D0%A1%D1%82%D0%B5%D1%84%D0%B0%D0%BD_%E2%80%93_%D0%91%D0%BE%D0%BB%D1%86%D0%BC%D0%B0%D0%BD" title="Константа на Стефан – Болцман">константата на Стефан – Болцман</a>. В този израз радиусът на планетата е съкратен. За планети като <a href="/wiki/%D0%AE%D0%BF%D0%B8%D1%82%D0%B5%D1%80_(%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0)" title="Юпитер (планета)">Юпитер</a> в уравнението трябва да се включи и вътрешното нагряване на планетата. </p><p>Земното албедо е 0,306.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> Емисивността на планетата зависи от вида на повърхността ѝ, като много климатични модели приравняват стойността на земната емисивност с 1. Все пак, за по-реалистична стойност се счита 0,96.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup> Имайки тези параметри предвид, се получава, че ефективната температура на Земята е 252 K (−21&#160;°C). Средната температура на Земята е 288 K (15&#160;°C). Една причина за разликата между двете стойности е парниковият ефект, който увеличава средната температура на земната повърхност. </p> <div class="mw-heading mw-heading2"><h2 id="Източници"><span id=".D0.98.D0.B7.D1.82.D0.BE.D1.87.D0.BD.D0.B8.D1.86.D0.B8"></span>Източници</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0_%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0&amp;veaction=edit&amp;section=3" title="Редактиране на раздел: Източници" class="mw-editsection-visualeditor"><span>редактиране</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%D0%95%D1%84%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%B0_%D1%82%D0%B5%D0%BC%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0&amp;action=edit&amp;section=3" title="Edit section&#039;s source code: Източници"><span>редактиране на кода</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Archie2003-1"><span class="mw-cite-backlink"><a href="#cite_ref-Archie2003_1-0">↑</a></span> <span class="reference-text"><cite id="CITEREFCRC_Press2003" class="book" style="font-style:normal">Archie E. Roy, David Clarke. <a rel="nofollow" class="external text" href="https://books.google.com/books?id=v2S6XV8dsIAC&amp;pg=PA216&amp;dq=%22effective+temperature%22+%22black+body%22+radiates+same">Astronomy</a>. &#32;CRC Press,&#32;2003.&#32;<a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%98%D0%B7%D1%82%D0%BE%D1%87%D0%BD%D0%B8%D1%86%D0%B8_%D0%BD%D0%B0_%D0%BA%D0%BD%D0%B8%D0%B3%D0%B8/9780750309172" class="internal mw-magiclink-isbn">ISBN 978-0-7503-0917-2</a>.</cite></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text">Бычков К. В. <a rel="nofollow" class="external text" href="http://www.femto.com.ua/articles/part_2/4785.html">Эффективная температура</a> // Физическая энциклопедия: [в 5 т.] / Гл. ред. <a href="/wiki/%D0%90%D0%BB%D0%B5%D0%BA%D1%81%D0%B0%D0%BD%D0%B4%D1%8A%D1%80_%D0%9F%D1%80%D0%BE%D1%85%D0%BE%D1%80%D0%BE%D0%B2" title="Александър Прохоров">А. М. Прохоров</a>.&#160;– М.: Большая российская энциклопедия, 1999.&#160;– Т. 5: Стробоскопические приборы&#160;– Яркость.&#160;– С. 645&#160;– 646.&#160;– 692 с.&#160;– 20 000 экз.&#160;– <a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%98%D0%B7%D1%82%D0%BE%D1%87%D0%BD%D0%B8%D1%86%D0%B8_%D0%BD%D0%B0_%D0%BA%D0%BD%D0%B8%D0%B3%D0%B8/5852701017" class="internal mw-magiclink-isbn">ISBN 5-85270-101-7</a>.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><cite id="CITEREFTayler1994" class="book" style="font-style:normal">Tayler, Roger John. <a rel="nofollow" class="external text" href="https://archive.org/details/starstheirstruct00tayl_311">The Stars: Their Structure and Evolution</a>. &#32;Cambridge University Press,&#32;1994.&#32;<a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%98%D0%B7%D1%82%D0%BE%D1%87%D0%BD%D0%B8%D1%86%D0%B8_%D0%BD%D0%B0_%D0%BA%D0%BD%D0%B8%D0%B3%D0%B8/0521458854" class="internal mw-magiclink-isbn">ISBN 0-521-45885-4</a>.&#32;с.&#160;<a rel="nofollow" class="external text" href="https://archive.org/details/starstheirstruct00tayl_311/page/n24">16</a>.</cite></span> </li> <li id="cite_note-Ref_-4"><span class="mw-cite-backlink"><a href="#cite_ref-Ref_4-0">↑</a></span> <span class="reference-text"><cite id="CITEREFCRC_Press2004" class="book" style="font-style:normal"><a rel="nofollow" class="external text" href="https://archive.org/details/crchandbookofche81lide">CRC Handbook of Chemistry and Physics</a>.&#32;85th. &#32;CRC Press,&#32;2004.&#32;<a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%98%D0%B7%D1%82%D0%BE%D1%87%D0%BD%D0%B8%D1%86%D0%B8_%D0%BD%D0%B0_%D0%BA%D0%BD%D0%B8%D0%B3%D0%B8/9780849304859" class="internal mw-magiclink-isbn">ISBN 9780849304859</a>.&#32;с.&#160;14.</cite></span> </li> <li id="cite_note-Jones2004-5"><span class="mw-cite-backlink"><a href="#cite_ref-Jones2004_5-0">↑</a></span> <span class="reference-text"><cite id="CITEREFJones2004" class="book" style="font-style:normal">Jones, Barrie William. <a rel="nofollow" class="external text" href="https://books.google.com/books?id=MmsWioMDiN8C&amp;pg=PA7&amp;dq=%22effective+temperature+of+the+sun%22">Life in the Solar System and Beyond</a>. &#32;Springer,&#32;2004.&#32;<a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%98%D0%B7%D1%82%D0%BE%D1%87%D0%BD%D0%B8%D1%86%D0%B8_%D0%BD%D0%B0_%D0%BA%D0%BD%D0%B8%D0%B3%D0%B8/1852331011" class="internal mw-magiclink-isbn">ISBN 1-85233-101-1</a>.&#32;с.&#160;7.</cite></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><a href="#cite_ref-6">↑</a></span> <span class="reference-text"><cite class="book" style="font-style:normal"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20101030234253/http://nssdc.gsfc.nasa.gov/planetary/factsheet/earthfact.html">Earth Fact Sheet</a>&#32;//&#32; &#32; Архивиран от <a rel="nofollow" class="external text" href="https://nssdc.gsfc.nasa.gov/planetary/factsheet/earthfact.html">оригинала</a>&#32;на 30 октомври 2010.&#32;Посетен на 8 май 2018.</cite></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a></span> <span class="reference-text">Jin, Menglin and Shunlin Liang, (2006) „[www.glue.umd.edu/~sliang/papers/Jin2006.emissivity.pdf An Improved Land Surface Emissivity Parameter for Land Surface Models Using Global Remote Sensing Observations]“ Journal of Climate, 19 2867&#160;– 81.</span> </li> </ol></div> <!-- NewPP limit report Parsed by mw‐api‐int.codfw.main‐6d4c9445c5‐f89w2 Cached time: 20241029163015 Cache expiry: 2592000 Reduced expiry: false Complications: [] CPU time usage: 0.098 seconds Real time usage: 0.165 seconds Preprocessor visited node count: 2058/1000000 Post‐expand include size: 9376/2097152 bytes Template argument size: 4681/2097152 bytes Highest expansion depth: 13/100 Expensive parser function count: 0/500 Unstrip recursion depth: 0/20 Unstrip post‐expand size: 6070/5000000 bytes Lua time usage: 0.018/10.000 seconds Lua memory usage: 925073/52428800 bytes Number of Wikibase entities loaded: 0/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 87.582 1 -total 77.70% 68.048 5 Шаблон:Cite 75.85% 66.430 4 Шаблон:Cite_book 38.07% 33.338 5 Шаблон:Източник_БДС_17377 24.86% 21.771 4 Шаблон:If_empty 17.43% 15.264 5 Шаблон:Delink 11.05% 9.681 1 Шаблон:Cite_web 3.11% 2.724 4 Шаблон:Math 3.08% 2.701 3 Шаблон:Стр 2.42% 2.121 5 Шаблон:Mvar --> <!-- Saved in parser cache with key bgwiki:pcache:idhash:735509-0!canonical and timestamp 20241029163015 and revision id 10948528. 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