{"id":51770,"date":"2026-11-01T09:15:29","date_gmt":"2026-11-01T09:15:29","guid":{"rendered":"https:\/\/www.worldclock.com\/csillagido-kalkulator\/"},"modified":"2026-11-01T09:15:29","modified_gmt":"2026-11-01T09:15:29","slug":"csillagido-kalkulator","status":"publish","type":"page","link":"https:\/\/www.worldclock.com\/hu\/csillagido-kalkulator\/","title":{"rendered":"Csillagid\u0151- \u00e9s Juli\u00e1n-d\u00e1tum-kalkul\u00e1tor"},"content":{"rendered":"<div class=\"wc wc-tool-page wc-tool-page--sidereal\"><header class=\"wc-thero\"><div class=\"wc-thero__text\"><nav class=\"wc-crumbs\" aria-label=\"Breadcrumb\"><ol><li><a href=\"https:\/\/www.worldclock.com\/hu\/\">Vil\u00e1g\u00f3ra<\/a><\/li><li><a href=\"https:\/\/www.worldclock.com\/hu\/eszkozok\/\">Id\u0151eszk\u00f6z\u00f6k<\/a><\/li><li><span aria-current=\"page\">Csillagid\u0151- \u00e9s Juli\u00e1n-d\u00e1tum-kalkul\u00e1tor<\/span><\/li><\/ol><\/nav><p class=\"wc-eyebrow\"><span aria-hidden=\"true\">\ud83c\udf0c<\/span> Ingyenes eszk\u00f6z<\/p><h1 class=\"wc-thero__title\">Csillagid\u0151- \u00e9s Juli\u00e1n-d\u00e1tum-kalkul\u00e1tor<\/h1><p class=\"wc-thero__lead\">\u00c9l\u0151 helyi csillagid\u0151, greenwichi csillagid\u0151, Juli\u00e1n-d\u00e1tum \u00e9s m\u00f3dos\u00edtott Juli\u00e1n-d\u00e1tum b\u00e1rmely helyre \u00e9s id\u0151pontra.<\/p><\/div><\/header><div class=\"wc-tool\"><div class=\"wc-sid\" data-wc-tool=\"sidereal\" data-default=\"{&quot;n&quot;:&quot;Greenwich&quot;,&quot;t&quot;:&quot;Europe\\\/London&quot;,&quot;f&quot;:&quot;gb&quot;,&quot;a&quot;:51.4769,&quot;o&quot;:-0.0005}\"><div class=\"wc-tbar\"><div class=\"wc-field wc-field--grow\"><span>Helysz\u00edn<\/span><div class=\"wc-search wc-search--tool\" data-wc-search data-mode=\"add\"><input type=\"search\" placeholder=\"V\u00e1ros keres\u00e9se\u2026\" aria-label=\"V\u00e1ros keres\u00e9se\u2026\" autocomplete=\"off\"><ul class=\"wc-search__results\" hidden><\/ul><\/div><\/div><label class=\"wc-field\"><span>F\u00f6ldrajzi hossz\u00fas\u00e1g \u00b0<\/span><input type=\"number\" step=\"0.0001\" min=\"-180\" max=\"180\" data-lng><\/label><button type=\"button\" class=\"wc-btn wc-btn--ghost\" data-geo>\ud83d\udccd Saj\u00e1t helyzetem<\/button><\/div><div class=\"wc-sunc__place\" data-place><\/div><div class=\"wc-sunc__cards\" data-cards><\/div><div class=\"wc-panel\" style=\"margin-top:16px\"><h2>D\u00e1tum \u00e1tv\u00e1lt\u00e1sa<\/h2><label class=\"wc-field\"><span>D\u00e1tum \u00e9s id\u0151 (UTC)<\/span><input type=\"datetime-local\" step=\"1\" data-dt><\/label><dl class=\"wc-unix__out\" data-out><\/dl><\/div><\/div><\/div><section class=\"wc-section wc-tool-info\"><div class=\"wc-prose\"><h2>Mi a csillagid\u0151?<\/h2><p>A csillagid\u0151 a F\u00f6ld forg\u00e1s\u00e1t nem a Naphoz, hanem a t\u00e1voli csillagokhoz viszony\u00edtva m\u00e9ri. Egy csillagnap k\u00f6r\u00fclbel\u00fcl <strong>23 \u00f3ra 56 perc 4 m\u00e1sodperc<\/strong> \u2013 majdnem n\u00e9gy perccel r\u00f6videbb a szol\u00e1ris napn\u00e1l \u2013, ez\u00e9rt a csillagok minden \u00e9jjel n\u00e9gy perccel kor\u00e1bban kelnek fel. A csillag\u00e1szok a <strong>helyi csillagid\u0151 (LST)<\/strong> seg\u00edts\u00e9g\u00e9vel ir\u00e1ny\u00edtj\u00e1k a t\u00e1vcs\u00f6veket: egy csillag akkor \u00e1ll a legmagasabban az \u00e9gen, amikor a helyi csillagid\u0151 megegyezik a rektaszcenzi\u00f3j\u00e1val.<\/p><p>A <strong>Juli\u00e1n-d\u00e1tum<\/strong> az i. e. 4713. janu\u00e1r 1-j\u00e9n d\u00e9l (UTC) \u00f3ta eltelt napok folyamatos sz\u00e1ml\u00e1l\u00e1sa, amelyet a csillag\u00e1szatban a napt\u00e1ri bonyodalmak elker\u00fcl\u00e9s\u00e9re haszn\u00e1lnak. A <strong>m\u00f3dos\u00edtott Juli\u00e1n-d\u00e1tum<\/strong> (MJD) \u00e9rt\u00e9ke JD \u2212 2 400 000,5, \u00e9s \u00e9jf\u00e9lkor kezd\u0151dik.<\/p><\/div><\/section><section class=\"wc-section wc-faq\"><h2>Gyakori k\u00e9rd\u00e9sek<\/h2><details><summary>Hogyan sz\u00e1m\u00edthatom ki a helyi csillagid\u0151t?<\/summary><p>Sz\u00e1m\u00edtsa ki a Juli\u00e1n-d\u00e1tumb\u00f3l a greenwichi k\u00f6z\u00e9pcsillagid\u0151t, majd adja hozz\u00e1 a f\u00f6ldrajzi hossz\u00fas\u00e1g\u00e1t \u00f3r\u00e1ban kifejezve (hossz\u00fas\u00e1g \u00f7 15, keletre pozit\u00edv). A fenti kalkul\u00e1tor ezt b\u00e1rmely helysz\u00ednre \u00e9l\u0151ben elv\u00e9gzi.<\/p><\/details><\/section><section class=\"wc-section wc-tools-grid\"><div class=\"wc-section__head\"><h2>Tov\u00e1bbi ingyenes id\u0151eszk\u00f6z\u00f6k<\/h2><a href=\"https:\/\/www.worldclock.com\/hu\/eszkozok\/\">\u00d6sszes eszk\u00f6z \u2192<\/a><\/div><div class=\"wc-toolcards\"><a class=\"wc-toolcard wc-toolcard--sun\" href=\"https:\/\/www.worldclock.com\/hu\/napkelte-napnyugta\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf05<\/span><span class=\"wc-toolcard__name\">Napkelte- \u00e9s napnyugta-kalkul\u00e1tor<\/span><span class=\"wc-toolcard__desc\">Napkelte, napnyugta \u00e9s arany\u00f3ra.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--golden\" href=\"https:\/\/www.worldclock.com\/hu\/aranyora-kalkulator\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udcf8<\/span><span class=\"wc-toolcard__name\">Arany\u00f3ra-kalkul\u00e1tor<\/span><span class=\"wc-toolcard__desc\">A legjobb f\u00e9ny fot\u00f3z\u00e1shoz.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--moon\" href=\"https:\/\/www.worldclock.com\/hu\/holdfazis\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf15<\/span><span class=\"wc-toolcard__name\">Mai holdf\u00e1zis<\/span><span class=\"wc-toolcard__desc\">A ma esti Hold \u00e9s holdnapt\u00e1r.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--fullmoon\" href=\"https:\/\/www.worldclock.com\/hu\/teliholdnaptar\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf1d<\/span><span class=\"wc-toolcard__name\">Teliholdnapt\u00e1r<\/span><span class=\"wc-toolcard__desc\">Teliholdak d\u00e1tumai \u00e9s nevei.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--moonrise\" href=\"https:\/\/www.worldclock.com\/hu\/holdkelte-holdnyugta\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf19<\/span><span class=\"wc-toolcard__name\">Holdkelte \u00e9s holdnyugta<\/span><span class=\"wc-toolcard__desc\">Mikor kel \u00e9s nyugszik a Hold.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--birthmoon\" href=\"https:\/\/www.worldclock.com\/hu\/holdfazis-szuletesnap\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83c\udf82<\/span><span class=\"wc-toolcard__name\">A Hold a sz\u00fclet\u00e9snapj\u00e1n<\/span><span class=\"wc-toolcard__desc\">A Hold b\u00e1rmely napon.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--astro\" href=\"https:\/\/www.worldclock.com\/hu\/csillagaszati-naptar\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udd2d<\/span><span class=\"wc-toolcard__name\">Csillag\u00e1szati napt\u00e1r<\/span><span class=\"wc-toolcard__desc\">Fogyatkoz\u00e1sok, meteorok \u00e9s \u00e9gi esem\u00e9nyek.<\/span><\/a><a class=\"wc-toolcard wc-toolcard--converter\" href=\"https:\/\/www.worldclock.com\/hu\/idozona-atvalto\/\"><span class=\"wc-toolcard__icon\" aria-hidden=\"true\">\ud83d\udd01<\/span><span class=\"wc-toolcard__name\">Id\u0151z\u00f3na-\u00e1tv\u00e1lt\u00f3<\/span><span class=\"wc-toolcard__desc\">Id\u0151pont \u00e1tv\u00e1lt\u00e1sa b\u00e1rmely v\u00e1rosok k\u00f6z\u00f6tt.<\/span><\/a><\/div><\/section><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":"","bs_cache_bypass_cache":0,"bs_cache_related_page":0},"class_list":["post-51770","page","type-page","status-publish","hentry"],"acf":[],"taxonomy_info":[],"featured_image_src_large":false,"author_info":{"display_name":"clocker","author_link":"https:\/\/www.worldclock.com\/hu\/author\/clocker\/"},"comment_info":"","_links":{"self":[{"href":"https:\/\/www.worldclock.com\/hu\/wp-json\/wp\/v2\/pages\/51770","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.worldclock.com\/hu\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.worldclock.com\/hu\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.worldclock.com\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.worldclock.com\/hu\/wp-json\/wp\/v2\/comments?post=51770"}],"version-history":[{"count":0,"href":"https:\/\/www.worldclock.com\/hu\/wp-json\/wp\/v2\/pages\/51770\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.worldclock.com\/hu\/wp-json\/wp\/v2\/media?parent=51770"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}