{"id":821,"date":"2004-12-02T15:40:00","date_gmt":"2004-12-02T14:40:00","guid":{"rendered":"https:\/\/kids.esa.int\/beyond_earth\/"},"modified":"2026-10-08T00:32:39","modified_gmt":"2026-10-07T22:32:39","slug":"beyond_earth","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/beyond_earth\/","title":{"rendered":"Za hranicemi Zem\u011b"},"content":{"rendered":"
\n

V\u011bt\u0161ina kosmick\u00fdch lod\u00ed je um\u00edst\u011bna na ob\u011b\u017en\u00e9 dr\u00e1ze kolem Zem\u011b. Pro v\u011bdeck\u00e9 satelity, kter\u00e9 zkoumaj\u00ed vzd\u00e1len\u00fd vesm\u00edr, to v\u0161ak nen\u00ed v\u017edy optim\u00e1ln\u00ed m\u00edsto.<\/p>\n<\/div>\n

Hubble\u016fv vesm\u00edrn\u00fd dalekohled ob\u00edh\u00e1 po kruhov\u00e9 dr\u00e1ze ve v\u00fd\u0161ce 600 km nad zemsk\u00fdm povrchem, p\u0159i\u010dem\u017e sklon dr\u00e1hy v\u016f\u010di rovn\u00edku \u010din\u00ed 28,5 stup\u0148\u016f. Tato ob\u011b\u017en\u00e1 dr\u00e1ha kolem Zem\u011b usnad\u0148uje opravy a \u00fadr\u017ebu observato\u0159e. Zem\u011b a M\u011bs\u00edc v\u0161ak zakr\u00fdvaj\u00ed velk\u00e9 \u010d\u00e1sti oblohy.<\/p>\n

N\u00e1stupce teleskopu Hubble, vesm\u00edrn\u00fd teleskop Jamese Webba, bude p\u016fsobit mnohem d\u00e1le. Bude um\u00edst\u011bn na stabiln\u00ed ob\u011b\u017enou dr\u00e1hu v takzvan\u00e9m Lagrangeov\u011b bod\u011b L2, vzd\u00e1len\u00e9m 1,5 milionu km na no\u010dn\u00ed stran\u011b Zem\u011b.<\/p>\n

L2 je jedn\u00edm z p\u011bti Lagrangeov\u00fdch bod\u016f Zem\u011b. V t\u011bchto bodech se gravita\u010dn\u00ed s\u00edly Zem\u011b, M\u011bs\u00edce a Slunce navz\u00e1jem ru\u0161\u00ed, tak\u017ee je snadn\u00e9 udr\u017eet dru\u017eici ve stejn\u00e9 poloze.<\/p>\n

Jin\u00e9 dru\u017eice, jako nap\u0159\u00edklad observato\u0159 SOHO agentury ESA, mus\u00ed neust\u00e1le sledovat Slunce. Tato kosmick\u00e1 lo\u010f se nach\u00e1z\u00ed v Lagrangeov\u011b bod\u011b L1, 1,5 milionu km sm\u011brem ke Slunci od Zem\u011b.<\/p>\n

Jeliko\u017e se v bod\u011b L1 vyrovn\u00e1vaj\u00ed gravita\u010dn\u00ed s\u00edly Zem\u011b a Slunce, m\u016f\u017ee sonda SOHO neust\u00e1le setrv\u00e1vat mezi nimi, ani\u017e by spot\u0159ebov\u00e1vala velk\u00e9 mno\u017estv\u00ed paliva.<\/p>","protected":false},"excerpt":{"rendered":"

Most spacecraft are placed in orbits around the Earth. But this is not always the optimal place for scientific satellites that explore the distant universe. The Hubble Space Telescope follows […]<\/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\/2003\/05\/changing_seasons_on_saturn2\/17877220-2-eng-GB\/Changing_seasons_on_Saturn.jpg","esa_banner_description":"Changing seasons on Saturn","esa_banner_credit":"NASA and The Hubble Heritage Team (STScI\/AURA)","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/05\/Changing_seasons_on_Saturn2","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":[10,65,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-821","post","type-post","status-publish","format-standard","hentry","category-learn","category-mission-control","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/821","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/comments?post=821"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/821\/revisions"}],"predecessor-version":[{"id":1964,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/821\/revisions\/1964"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=821"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=821"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=821"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=821"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=821"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=821"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=821"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}