{"id":1106,"date":"2006-01-20T13:10:00","date_gmt":"2006-01-20T12:10:00","guid":{"rendered":"https:\/\/kids.esa.int\/neptune\/"},"modified":"2026-10-08T00:36:04","modified_gmt":"2026-10-07T22:36:04","slug":"neptune","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/hu\/neptune\/","title":{"rendered":"Neptunusz"},"content":{"rendered":"
\n

A Neptunusz bolyg\u00f3t 1846-ban fedezte fel Johann Galle, a berlini csillagvizsg\u00e1l\u00f3 csillag\u00e1sza. Galle a francia matematikus, Urbain Le Verrier sz\u00e1m\u00edt\u00e1sainak k\u00f6sz\u00f6nhet\u0151en tudta, hol kell keresnie. Le Verrier \u00e9s az angol John Adams egyar\u00e1nt r\u00e1j\u00f6ttek, hogy egy l\u00e1thatatlan bolyg\u00f3 vonzza az Ur\u00e1nuszt, ami miatt az lassul vagy gyorsul.<\/p>\n<\/div>\n

A Neptunusz szinte az Ur\u00e1nusz ikertestv\u00e9re. 57-szer nagyobb, mint a F\u00f6ld, de meglehet\u0151sen gyorsan forog \u2013 egy napja mind\u00f6ssze 16 \u00f3ra 7 percig tart. A Napt\u00f3l val\u00f3 \u00e1tlagos t\u00e1vols\u00e1ga k\u00f6r\u00fclbel\u00fcl 4 500 milli\u00f3 km, \u00e9s egy \u00e9v a Neptunuszon majdnem 165 f\u00f6ldi \u00e9vig tart.<\/p>\n

Az Ur\u00e1nuszhoz hasonl\u00f3an ennek is hidrog\u00e9nb\u0151l, h\u00e9liumb\u00f3l \u00e9s met\u00e1nb\u00f3l \u00e1ll\u00f3 l\u00e9gk\u00f6re van. Belseje j\u00e9gb\u0151l \u00e1ll, \u00e9s lehets\u00e9ges, hogy szikl\u00e1s magja van. B\u00e1r a l\u00e9gk\u00f6r nagyon hideg (-220 \u00b0C), a k\u00e9k bolyg\u00f3n rendk\u00edv\u00fcl er\u0151s szelek \u00e9s heves viharok tombolnak. A Voyager 2 egy hatalmas, a F\u00f6ld m\u00e9ret\u0171 foltot \u00f6r\u00f6k\u00edtett meg.<\/p>\n

A Neptunusznak legal\u00e1bb \u00f6t s\u00f6t\u00e9t, keskeny gy\u0171r\u0171je van (amelyeket Galle-r\u00f3l, Le Verrier-r\u0151l, Adamsr\u0151l \u00e9s a bolyg\u00f3 felfedez\u00e9s\u00e9n dolgoz\u00f3 egy\u00e9b szem\u00e9lyekr\u0151l neveztek el).<\/p>\n

13 ismert holdja van. A messze legnagyobb a Triton, egy j\u00e9gbolyg\u00f3, amely nagyobb, mint a Pl\u00fat\u00f3. A Tritonon nagyon hideg van, ez\u00e9rt v\u00e9kony l\u00e9gk\u00f6re a felsz\u00ednre fagyott. Ugyanakkor sz\u00e1mos akt\u00edv j\u00e9gvulk\u00e1nja van, amelyek g\u00e1z- \u00e9s porfelh\u0151ket l\u00f6vellnek ki. A Triton az\u00e9rt is szokatlan, mert \u201cford\u00edtott ir\u00e1nyban\u201d (keletr\u0151l nyugat fel\u00e9) kering a Neptunusz k\u00f6r\u00fcl. \u00dagy t\u0171nik, hogy r\u00e9gen a Neptunusz gravit\u00e1ci\u00f3ja vonzotta be.<\/p>","protected":false},"excerpt":{"rendered":"

Neptune was discovered in 1846 by Johann Galle, an astronomer at the Berlin Observatory. Galle knew where to look because of calculations by French mathematician Urbain Le Verrier. Both Le […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2000\/12\/neptune2\/17866082-3-eng-GB\/Neptune.jpg","esa_banner_description":"Neptune","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2000\/12\/Neptune2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,11,12],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1106","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/1106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/comments?post=1106"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/1106\/revisions"}],"predecessor-version":[{"id":2249,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/1106\/revisions\/2249"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/media?parent=1106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/categories?post=1106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/tags?post=1106"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/panel?post=1106"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/language?post=1106"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/age?post=1106"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/duration?post=1106"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/resource_type?post=1106"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/audience?post=1106"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/wf_post_folders?post=1106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}