{"id":1138,"date":"2004-11-16T10:43:00","date_gmt":"2004-11-16T09:43:00","guid":{"rendered":"https:\/\/kids.esa.int\/asteroid_families\/"},"modified":"2026-10-08T00:36:26","modified_gmt":"2026-10-07T22:36:26","slug":"asteroid_families","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/asteroid_families\/","title":{"rendered":"Rodiny asteroid\u016f"},"content":{"rendered":"
\n

Dnes v\u00edme, \u017ee Ceres m\u00e1 pr\u016fm\u011br p\u0159ibli\u017en\u011b 940 km \u2013 co\u017e je asi jedna \u010dtvrtina velikosti M\u011bs\u00edce. P\u0159esto v\u0161ak tvo\u0159\u00ed v\u00edce ne\u017e jednu \u010dtvrtinu celkov\u00e9 hmotnosti v\u0161ech asteroid\u016f.<\/p>\n<\/div>\n

Dal\u0161\u00edch \u0161estn\u00e1ct asteroid\u016f m\u00e1 pr\u016fm\u011br v\u011bt\u0161\u00ed ne\u017e 240 km. V\u011bt\u0161inu asteroid\u016f v\u0161ak tvo\u0159\u00ed sk\u00e1ly a balvany o pr\u016fm\u011bru pouh\u00fdch n\u011bkolika metr\u016f. Kdyby se v\u0161echny slisovaly do jednoho t\u011blesa, st\u00e1le by byly men\u0161\u00ed ne\u017e M\u011bs\u00edc. N\u011bkter\u00e9 asteroidy jsou kamenn\u00e9, jin\u00e9 jsou slo\u017eeny z kov\u016f, jako je \u017eelezo a nikl. V\u011bt\u0161ina z nich m\u00e1 \u010dernohn\u011bdou barvu a je bohat\u00e1 na uhl\u00edk.<\/p>\n

Mnoho asteroid\u016f pat\u0159\u00ed do rodin. Ka\u017ed\u00e1 rodina m\u00e1 stejnou barvu a zd\u00e1 se, \u017ee je tvo\u0159ena stejn\u00fdmi materi\u00e1ly. Nav\u00edc se pohybuj\u00ed bl\u00edzko u sebe v r\u016fzn\u00fdch \u010d\u00e1stech hlavn\u00edho p\u00e1su. Jednou z nejv\u011bt\u0161\u00edch z nich je rodina Flora, kter\u00e1 m\u00e1 asi 400 zn\u00e1m\u00fdch \u010dlen\u016f.<\/p>\n

Asteroidy se vyskytuj\u00ed i mimo hlavn\u00ed p\u00e1s. Ze sv\u00e9ho p\u016fvodn\u00edho prost\u0159ed\u00ed je vyhodila siln\u00e1 gravitace Jupitera nebo sr\u00e1\u017eky s jin\u00fdmi asteroidy. N\u011bkter\u00e9 se staly m\u011bs\u00edci t\u00e9to ob\u0159\u00ed planety. Stovky tis\u00edc asteroid\u016f \u2013 z nich\u017e n\u011bkter\u00e9 jsou velk\u00e9 \u2013 prol\u00e9t\u00e1vaj\u00ed v bl\u00edzkosti Zem\u011b.<\/p>","protected":false},"excerpt":{"rendered":"

Ceres is now known to have a width of about 940 km – about one quarter (one fourth) the size of Earth’s Moon. But it accounts for more than one […]<\/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\/2002\/04\/typical_orbits_for_inner_solar_system_asteroids2\/17865268-3-eng-GB\/Typical_orbits_for_inner_solar_system_asteroids.jpg","esa_banner_description":"Typical orbits for inner solar system asteroids","esa_banner_credit":"ESA 2002. Illustration by Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2002\/04\/Typical_orbits_for_inner_solar_system_asteroids2","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":[46,10,11],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1138","post","type-post","status-publish","format-standard","hentry","category-comets-and-meteors","category-learn","category-our-universe","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/1138","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=1138"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/1138\/revisions"}],"predecessor-version":[{"id":2281,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/1138\/revisions\/2281"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=1138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=1138"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=1138"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=1138"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=1138"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=1138"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=1138"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=1138"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=1138"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=1138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}