Klaudios Ptolemaios (100-170 n. l.) tvrdil, \u017ee Zem\u011b je st\u0159edem vesm\u00edru a v\u0161e se to\u010d\u00ed kolem n\u00ed. V 16. stolet\u00ed ho p\u0159ebil Mikul\u00e1\u0161 Kopern\u00edk, kter\u00fd prosadil heliocentrick\u00fd model, kde v\u0161echno ob\u00edh\u00e1 okolo Slunce. Jen\u017ee to tak \u00fapln\u011b nen\u00ed pravda.<\/p>\n
T\u011blesa ve vesm\u00edru neopisuj\u00ed dokonal\u00e9 kru\u017enice nebo elipsy okolo matematick\u00e9ho st\u0159edu mohutn\u011bj\u0161\u00edch objekt\u016f. Ve skute\u010dnosti oba z\u00fa\u010dastn\u011bn\u00ed ob\u00edhaj\u00ed kolem spole\u010dn\u00e9ho barycentra. To je t\u011b\u017ei\u0161t\u011b, gravita\u010dn\u00ed nebo hmotn\u00fd st\u0159ed mezi dv\u011bma t\u011blesy, kter\u00e1 na sebe vz\u00e1jemn\u011b p\u016fsob\u00ed svoj\u00ed gravitac\u00ed. Stejn\u011b t\u011b\u017ek\u00e9 objekty by ho m\u011bly v p\u016fli cesty mezi sebou.<\/p>\n
Rozd\u00edl v hmotnosti pak posouv\u00e1 barycentrum k tomu dominantn\u00edmu. A proto\u017ee je Slunce v na\u0161\u00ed galaxii s obrovsk\u00fdm n\u00e1skokem nejv\u011bt\u0161\u00ed, le\u017e\u00ed barycentra pro v\u011bt\u0161inu planet bl\u00edzko jeho st\u0159edu. Gravitace t\u011bch men\u0161\u00edch je zkr\u00e1tka moc slab\u00e1. Proto se zd\u00e1, \u017ee ob\u0159\u00ed Slunce stoj\u00ed na m\u00edst\u011b a v\u0161ichni poslu\u0161n\u011b rotuj\u00ed okolo.<\/p>\n
Objevy nov\u00fdch t\u011bles<\/p>\n
Slunce tvo\u0159\u00ed 99,86 procent hmotnosti cel\u00e9 na\u0161\u00ed soustavy. Zbytek, jenom 0,14 procenta, si pak rozd\u011bl\u00ed planety, m\u011bs\u00edce, asteroidy a dal\u0161\u00ed t\u011blesa. Z toho 70 procent p\u0159ipad\u00e1 na Jupiter. Takhle v\u00fdrazn\u00e1 planeta u\u017e v\u00fdpo\u010dty docela ovlivn\u00ed a jako jedin\u00e1 m\u00e1 barycentrum \u00fapln\u011b mimo na\u0161i nejv\u011bt\u0161\u00ed hv\u011bzdu. P\u0159esn\u011b je to 7 procent polom\u011bru Slunce nad jeho povrchem. Jedno kolo Jupiteru i Slunce kolem tohoto bodu trv\u00e1 11,8 pozemsk\u00fdch let. Pravda, Slunce se tolik nenad\u0159e a sp\u00ed\u0161 to vypad\u00e1, \u017ee se jen tak trochu vrt\u00ed.<\/p>\n
Tento jev pom\u00e1h\u00e1 astronaut\u016fm s objevov\u00e1n\u00edm dal\u0161\u00edch t\u011bles ve vesm\u00edru. Jakmile se n\u011bjak\u00e1 hv\u011bzda takhle t\u0159epot\u00e1, mohlo by se v jej\u00ed bl\u00edzkosti pohybovat n\u011bco s vysokou hmotnost\u00ed.<\/p>\n
P\u0159e\u010dt\u011bte si tak\u00e9: Sonda NASA Europa Clipper odstartovala na misi k Jupiterov\u011b m\u011bs\u00edci Europa<\/a><\/p>\n \u201eCel\u00e1 na\u0161e soustava m\u00e1 tak\u00e9 barycentrum. Slunce, Zem\u011b a v\u0161echny planety ve slune\u010dn\u00ed soustav\u011b ob\u00edhaj\u00ed okolo n\u011bj. Je to t\u011b\u017ei\u0161t\u011b v\u0161ech objekt\u016f dohromady,\u201c p\u00ed\u0161e NASA. D\u00edky hmotnosti Jupiteru a plynn\u00e9ho obra Saturnu se m\u00e1lokdy nach\u00e1z\u00ed ve st\u0159edu Slunce, \u010dasto je mimo n\u011bj, jak ukazuje video, kter\u00e9 publikovala NASA.<\/p>\n A jak je to se Zem\u00ed a M\u011bs\u00edcem? M\u011bs\u00edc je mnohem men\u0161\u00ed ne\u017e Zem\u011b, v\u00e1\u017e\u00ed pouze 1\/81 jej\u00ed hmotnosti. Vz\u00e1jemn\u00e9 t\u011b\u017ei\u0161t\u011b tedy bude na na\u0161\u00ed stran\u011b. Konkr\u00e9tn\u011b pod povrchem Zem\u011b, n\u011bkde 4671 a\u017e 4680 kilometr\u016f od st\u0159edu, co\u017e planetu nut\u00ed taky se kolem tohoto bodu m\u00edrn\u011b nat\u0159\u00e1sat.<\/p>\n Zdroj: NASA<\/a>, IFL Science<\/a><\/p>\n Video, kter\u00e9 jste mohli minout: Technologie, kter\u00e1 nem\u00e1 obdoby. Let k M\u011bs\u00edci je jen za\u010d\u00e1tek, popisuje expert pl\u00e1ny mise Artemis<\/p>\n","protected":false},"excerpt":{"rendered":"Klaudios Ptolemaios (100-170 n. l.) tvrdil, \u017ee Zem\u011b je st\u0159edem vesm\u00edru a v\u0161e se to\u010d\u00ed kolem n\u00ed. V…\n","protected":false},"author":2,"featured_media":76099,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[2727,24558,16171,1542,8803,74,73,7978,78,75,77,76,12075,1540],"class_list":{"0":"post-76098","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-veda-a-technika","8":"tag-astronomie","9":"tag-barycentrum","10":"tag-jupiter","11":"tag-nasa","12":"tag-prirodni-vedy","13":"tag-science","14":"tag-science-technology","15":"tag-slunce","16":"tag-technika","17":"tag-technology","18":"tag-veda","19":"tag-veda-a-technika","20":"tag-vedecky-vyzkum","21":"tag-vesmir"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@cz\/116521186242425723","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/76098","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/comments?post=76098"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/76098\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media\/76099"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media?parent=76098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/categories?post=76098"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/tags?post=76098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}