{"id":1096,"date":"2007-10-19T13:43:00","date_gmt":"2007-10-19T11:43:00","guid":{"rendered":"https:\/\/kids.esa.int\/herschel_esa_s_cosmic_heat_seeker\/"},"modified":"2026-10-08T00:35:58","modified_gmt":"2026-10-07T22:35:58","slug":"herschel_esa_s_cosmic_heat_seeker","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/herschel_esa_s_cosmic_heat_seeker\/","title":{"rendered":"Herschel: ESA kosmiline soojuseotsija"},"content":{"rendered":"
\n

2008. aasta suvel stardivad Prantsuse Guajaanas Kourous kaks k\u00f5ige tundlikumat kosmoseteleskoopi, mis kunagi orbiidile on saadetud. Ariane 5 raketi pardal on Herschel, maailma v\u00f5imsaim soojust tuvastav kosmoseteleskoop, ning Planck, mis hakkab uurima n\u00f5rka kiirgust, mis t\u00e4itis universumi vahetult p\u00e4rast Suurt Pauku.<\/p>\n<\/div>\n

K\u00f5ik, mis puudutab ESA Herscheli kosmoseobservatooriumi, on suur. Satelliit on umbes 7 meetrit k\u00f5rge ja 4,3 meetrit lai ning kaalub 3,25 tonni. Selle teleskoobi peapeegel on l\u00e4bim\u00f5\u00f5duga 3,5 meetrit, mis on suurim, mis teaduslikule kosmoses\u00f5idukile kunagi ehitatud on.<\/p>\n

Observatoorium on nimetatud teise teadusgigandi, saksa astronoomi ja muusiku William Herscheli auks. Aastal 1800 kasutas Herschel klaasprismat, et jagada valget valgust v\u00e4rvide vikerkaareks. Tema \u00fcllatuseks n\u00e4itas punase valguskiire k\u00f5rvale asetatud termomeeter temperatuuri t\u00f5usu. Herschel oli avastanud P\u00e4ikesest p\u00e4rineva n\u00e4htamatu valguse, mida teadlased nimetavad \u201cinfrapunakiirguseks\u201d. Meie nimetame seda sageli lihtsalt \u201csoojuseks\u201d.<\/p>\n

Herschel asub 1,5 miljoni kilomeetri kaugusel, mis on piisavalt kaugel, et v\u00e4ltida Maa infrapunakiirguse poolt p\u00f5hjustatud h\u00e4ireid vaatlustes. Selle kolme m\u00f5\u00f5teriista jahutatakse vedela heeliumiga, nii et nende temperatuur on l\u00e4hedal absoluutsele nullpunktile (-273 \u00b0C).<\/p>\n

Herscheli abil uuritakse \u2018k\u00fclma\u2019 universumit. Selle \u00fclik\u00fclmad \u2018silmad\u2019 n\u00e4evad l\u00e4bi tolmupilvede, et uurida t\u00e4htede tekkepiirkondi, galaktikate keskusi ja peidetud planeete. Eelk\u00f5ige p\u00fc\u00fctakse selle abil selgitada v\u00e4lja, kuidas galaktikad ja t\u00e4hed varases universumis tekkisid.<\/p>","protected":false},"excerpt":{"rendered":"

In the summer of 2008, two of the most sensitive space observatories ever launched will lift off from Kourou in French Guiana. On board the Ariane 5 rocket will be […]<\/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\/2007\/09\/sun_earth_and_the_spacecraft_are_aligned2\/17892130-2-eng-GB\/Sun_Earth_and_the_spacecraft_are_aligned.jpg","esa_banner_description":"","esa_banner_credit":"ESA\/AOES Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2007\/09\/Sun_Earth_and_the_spacecraft_are_aligned2","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":[10,11,21],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1096","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-stars-and-galaxies","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/1096","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/comments?post=1096"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/1096\/revisions"}],"predecessor-version":[{"id":2239,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/1096\/revisions\/2239"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=1096"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=1096"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=1096"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=1096"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=1096"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=1096"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=1096"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=1096"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=1096"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=1096"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}