{"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\/sl\/herschel_esa_s_cosmic_heat_seeker\/","title":{"rendered":"Herschel: ESA-jev iskalec kozmi\u010dne toplote"},"content":{"rendered":"
\n

Poleti 2008 bosta iz Kourouja v Francoski Gvajani poletela dva najbolj ob\u010dutljiva vesoljska observatorija, ki sta bila kdaj koli izstreljena. Na krovu rakete Ariane 5 bosta Herschel, najmo\u010dnej\u0161i vesoljski teleskop na svetu, ki zazna toploto, in Planck, ki bo preu\u010deval \u0161ibko sevanje, ki je napolnilo vesolje takoj po velikem poku.<\/p>\n<\/div>\n

Vse v zvezi z vesoljskim observatorijem Herschel agencije ESA je ogromno. Satelit je visok pribli\u017eno 7 metrov in \u0161irok 4,3 metra, njegova masa pa zna\u0161a 3,25 tone. Glavno zrcalo njegovega teleskopa meri 3,5 metra v premeru, kar je najve\u010dje zrcalo, ki je bilo kdaj koli izdelano za znanstveno vesoljsko plovilo.<\/p>\n

Observatorij je poimenovan po \u0161e enem velikem znanstveniku, nem\u0161kem astronomu in glasbeniku Williamu Herschelu. Leta 1800 je Herschel s steklenim prizmo raz\u010dlenil belo svetlobo v mavrico barv. Na njegovo presene\u010denje je termometer, postavljen ob rde\u010dem svetlobnem \u017earku, pokazal dvig temperature. Herschel je odkril nevidno svetlobo Sonca, ki jo znanstveniki poznajo kot \u201cinfrarde\u010de sevanje\u201d. Pogosto jo preprosto imenujemo \u201ctoplota\u201d.<\/p>\n

Herschel bo name\u0161\u010den na razdalji 1,5 milijona kilometrov, kar je dovolj dale\u010d, da se izogne te\u017eavam, ki jih povzro\u010da infrarde\u010de sevanje Zemlje, ki bi lahko motilo opazovanja. Njegove tri naprave bodo hlajene s teko\u010dim helijem, tako da bo njihova temperatura blizu absolutne ni\u010dle (-273 \u00b0C).<\/p>\n

Herschel bo namenjen raziskovanju \u2018hladnega\u2019 vesolja. Njegova izjemno hladna \u2018o\u010desa\u2019 bodo videla skozi oblake prahu, da bi raziskala obmo\u010dja nastajanja zvezd, sredi\u0161\u010da galaksij in skrite planete. Predvsem pa bo sku\u0161al ugotoviti, kako so se v zgodnjem vesolju oblikovale galaksije in zvezde.<\/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\/sl\/wp-json\/wp\/v2\/posts\/1096","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/comments?post=1096"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/1096\/revisions"}],"predecessor-version":[{"id":2239,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/1096\/revisions\/2239"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=1096"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=1096"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=1096"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=1096"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=1096"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=1096"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=1096"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=1096"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=1096"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=1096"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}