{"id":16147,"date":"2021-10-26T13:32:36","date_gmt":"2021-10-26T13:32:36","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=16147"},"modified":"2021-10-26T13:32:36","modified_gmt":"2021-10-26T13:32:36","slug":"asteroid-bennu-close-encounter-earth-2182","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/astronomy\/asteroid-bennu-close-encounter-earth-2182\/","title":{"rendered":"Asteroid Bennu: T\u011bsn\u00e9 setk\u00e1n\u00ed se Zem\u00ed v roce 2182"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Asteroid Bennu: T\u011bsn\u00e9 setk\u00e1n\u00ed se Zem\u00ed v roce 2182<\/h2>\n\n<h2 class=\"wp-block-heading\">Asteroid Bennu<\/h2>\n\n<p>Asteroid Bennu, p\u016fl m\u00edle \u0161irok\u00e9 nebesk\u00e9 t\u011bleso, je v sou\u010dasn\u00e9 dob\u011b vzd\u00e1len od Zem\u011b asi 190 milion\u016f mil. V\u011bdci vypo\u010d\u00edtali, \u017ee Bennu se k na\u0161\u00ed planet\u011b nejv\u00edce p\u0159ibl\u00ed\u017e\u00ed 24. z\u00e1\u0159\u00ed 2182.<\/p>\n\n<h2 class=\"wp-block-heading\">Pravd\u011bpodobnost dopadu<\/h2>\n\n<p>P\u0159esto\u017ee je pravd\u011bpodobnost velmi mal\u00e1, existuje \u0161ance, \u017ee by Bennu mohl narazit do Zem\u011b. V\u011bdci odhaduj\u00ed, \u017ee \u0161ance na dopad je jedna ku 1 175 (0,0037 %).<\/p>\n\n<h2 class=\"wp-block-heading\">Faktory ovliv\u0148uj\u00edc\u00ed dr\u00e1hu Bennu<\/h2>\n\n<p>Dr\u00e1ha asteroidu by mohla b\u00fdt ovlivn\u011bna r\u016fzn\u00fdmi faktory, v\u010detn\u011b:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Bl\u00edzk\u00e9ho pr\u016fletu v roce 2135<\/li>\n<li>Gravita\u010dn\u00edch sil ze Slunce, Zem\u011b a M\u011bs\u00edce<\/li>\n<li>Jarkovsk\u00e9ho efektu, kdy se asteroidy zrychluj\u00ed po absorbov\u00e1n\u00ed tepla ze Slunce<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Gravita\u010dn\u00ed kl\u00ed\u010dov\u00e1 d\u00edrka<\/h2>\n\n<p>Kdy\u017e Bennu v roce 2135 prolet\u00ed kolem Zem\u011b, projde gravita\u010dn\u00ed kl\u00ed\u010dovou d\u00edrkou, kter\u00e1 by mohla zm\u011bnit jeho dr\u00e1hu a nasm\u011brovat ho na kolizn\u00ed kurz s na\u0161\u00ed planetou.<\/p>\n\n<h2 class=\"wp-block-heading\">Mo\u017en\u00e9 d\u016fsledky dopadu<\/h2>\n\n<p>Pokud by Bennu narazil do Zem\u011b, mohl by vytvo\u0159it kr\u00e1ter o pr\u016fm\u011bru nejm\u00e9n\u011b p\u011bt kilometr\u016f, p\u0159i\u010dem\u017e oblast devastace by se mohla roz\u0161\u00ed\u0159it a\u017e na ston\u00e1sobek t\u00e9to velikosti. Dopad na st\u00e1ty v\u00fdchodn\u00edho pob\u0159e\u017e\u00ed by mohl m\u00edt katastrof\u00e1ln\u00ed d\u016fsledky pro cel\u00e9 pob\u0159e\u017e\u00ed.<\/p>\n\n<h2 class=\"wp-block-heading\">Planet\u00e1rn\u00ed obrana<\/h2>\n\n<p>V\u011bdci zd\u016fraz\u0148uj\u00ed, \u017ee v tuto chv\u00edli nen\u00ed d\u016fvod k obav\u00e1m. K potenci\u00e1ln\u00edmu dopadu zb\u00fdv\u00e1 je\u0161t\u011b 161 let, co\u017e poskytuje dostatek \u010dasu na monitorov\u00e1n\u00ed a p\u0159\u00edpadn\u00e1 zm\u00edr\u0148ovac\u00ed opat\u0159en\u00ed.<\/p>\n\n<h2 class=\"wp-block-heading\">Kosmick\u00e1 lo\u010f OSIRIS-REx<\/h2>\n\n<p>Kosmick\u00e1 lo\u010f NASA OSIRIS-REx p\u0159ist\u00e1la na Bennu v roce 2018 a shrom\u00e1\u017edila cenn\u00e9 \u00fadaje, kter\u00e9 pomohly v\u011bdc\u016fm zp\u0159esnit jejich v\u00fdpo\u010dty ohledn\u011b hrozby asteroidu pro Zemi.<\/p>\n\n<h2 class=\"wp-block-heading\">Pr\u016fb\u011b\u017en\u00e9 monitorov\u00e1n\u00ed<\/h2>\n\n<p>V\u011bdci nad\u00e1le pe\u010dliv\u011b sleduj\u00ed dr\u00e1hu Bennu. Tyto informace pou\u017eij\u00ed k informovan\u00fdm rozhodnut\u00edm o mo\u017en\u00fdch zm\u00edr\u0148ovac\u00edch strategi\u00edch, pokud to bude nutn\u00e9.<\/p>\n\n<h2 class=\"wp-block-heading\">Mezin\u00e1rodn\u00ed spolupr\u00e1ce<\/h2>\n\n<p>Prob\u00edh\u00e1 mezin\u00e1rodn\u00ed \u00fasil\u00ed o zm\u00edrn\u011bn\u00ed rizik spojen\u00fdch s objekty bl\u00edzk\u00fdmi Zemi, jako je Bennu. V\u011bdci a in\u017een\u00fd\u0159i z cel\u00e9ho sv\u011bta spolupracuj\u00ed na v\u00fdzkumu a v\u00fdvoji technologi\u00ed pro odklon\u011bn\u00ed nebo zni\u010den\u00ed asteroid\u016f, kter\u00e9 p\u0159edstavuj\u00ed hrozbu pro na\u0161i planetu.<\/p>\n\n<h2 class=\"wp-block-heading\">Dlouhodob\u00e9 d\u016fsledky<\/h2>\n\n<p>Potenci\u00e1ln\u00ed dopad Bennu slou\u017e\u00ed jako p\u0159ipom\u00ednka d\u016fle\u017eitosti planet\u00e1rn\u00ed obrany. Pochopen\u00edm rizik, kter\u00e1 p\u0159edstavuj\u00ed asteroidy, a investov\u00e1n\u00edm do v\u00fdzkumu a zm\u00edr\u0148ovac\u00edch opat\u0159en\u00ed m\u016f\u017eeme pomoci zajistit bezpe\u010dnost na\u0161\u00ed planety a budouc\u00edch generac\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"<p>Asteroid Bennu: T\u011bsn\u00e9 setk\u00e1n\u00ed se Zem\u00ed v roce 2182 Asteroid Bennu Asteroid Bennu, p\u016fl m\u00edle \u0161irok\u00e9 nebesk\u00e9 t\u011bleso, je v sou\u010dasn\u00e9 dob\u011b vzd\u00e1len od Zem\u011b asi 190 milion\u016f mil. V\u011bdci&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[437],"tags":[17652,21424,21425,434],"class_list":["post-16147","post","type-post","status-publish","format-standard","hentry","category-astronomy","tag-asteroid-bennu","tag-near-earth-objects","tag-planetary-defense","tag-space-exploration"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/16147","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=16147"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/16147\/revisions"}],"predecessor-version":[{"id":16148,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/16147\/revisions\/16148"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=16147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=16147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=16147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}