{"id":259,"date":"2021-02-12T22:54:06","date_gmt":"2021-02-12T20:54:06","guid":{"rendered":"http:\/\/www.cosmoespai.com\/cat\/?p=259"},"modified":"2021-02-12T22:54:06","modified_gmt":"2021-02-12T20:54:06","slug":"que-conte-el-cinturo-dasteroides","status":"publish","type":"post","link":"https:\/\/www.cosmoespai.com\/cat\/que-conte-el-cinturo-dasteroides\/","title":{"rendered":"Qu\u00e8 cont\u00e9 el cintur\u00f3 d\u2019asteroides?"},"content":{"rendered":"\n<p class=\"has-text-align-justify\">El cintur\u00f3 d\u2019asteroides est\u00e0 situat entre les \u00f2rbites de Mart i J\u00fapiter, i s\u2019ha estudiat molt des de la seva descoberta al 1766. Sabem que el cintur\u00f3 d\u2019asteroides est\u00e0 compost per molts cossos celestes. Ja s\u2019han identificat molts d\u2019aquests cossos celestes, i una bona part d\u2019ells ja tenen un nom.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em><u><strong>Els cossos celestes que hi ha<\/strong><\/u><\/em><\/h4>\n\n\n\n<p class=\"has-text-align-justify\">El cintur\u00f3 d\u2019asteroides cont\u00e9, com diu el seu nom, una quantitat enorme d\u2019asteroides. Es calcula que el cintur\u00f3 cont\u00e9 aproximadament uns 960 000 asteroides. Els cient\u00edfics han donat un nom a 18 000 asteroides, per\u00f2 tamb\u00e9 n\u2019hi ha 95 000 que s\u2019identifiquen amb n\u00fameros. Tot i aix\u00ed, la xifra d\u2019asteroides que anem coneixent se supera constantment, ja que cada dia es van descobrint nous asteroides atrapats en aquest cintur\u00f3.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">A part d\u2019asteroides, tamb\u00e9 s\u2019hi ha trobat un planeta na. Ceres, descobert al 1801, va ser considerat inicialment i durant molt temps un asteroide, fins a que al 2006 es va considerar un planeta na. La seva catalogaci\u00f3 com a asteroide va ser deguda a la seva petita mida, ja que si b\u00e9 avui en dia \u00e9s considerat com a planeta na, Ceres \u00e9s el planeta na m\u00e9s petit del sistema solar.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">L\u2019\u00fanic planeta na que hi ha al cintur\u00f3 d\u2019asteroides \u00e9s Ceres, per\u00f2 tot i aix\u00ed, molts altres asteroides del cintur\u00f3 posseeixen sat\u00e8l\u00b7lits. S\u2019han descobert una gran quantitat d\u2019asteroides que posseeixin sat\u00e8l\u00b7lits, tot i que la seva mida \u00e9s molt petita.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Tot i que al cintur\u00f3 d\u2019asteroides hi ha uns 960 000 asteroides, la veritat \u00e9s que \u00e9s poc probable impactar contra un d\u2019aquests. Encara que hi ha molts asteroides, la zona que ocupa el cintur\u00f3 \u00e9s molt gran i els asteroides estan molt separats els uns dels altres.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em><u><strong>La composici\u00f3 dels asteroides<\/strong><\/u><\/em><\/h4>\n\n\n\n<p class=\"has-text-align-justify\">Els asteroides del cintur\u00f3 estan compostos principalment per materials rocosos, com per exemple roques, ferro, n\u00edquel i fins i tot plat\u00ed. A m\u00e9s a m\u00e9s, poc menys del 50% d\u2019asteroides posseeixen compostos de silici, ja que predominen per sobre de tot els minerals abans mencionats.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Gr\u00e0cies als estudis sobre els asteroides del cintur\u00f3, sabem que la quantitat de ferro que contenen els asteroides seria molt superior al ferro que ha utilitzat la humanitat des del seu descobriment fins a l\u2019actualitat. A part del ferro, aquests asteroides contenen materials molt poc comuns a la Terra. Per aquest motiu, en un futur es podrien <strong><a href=\"http:\/\/www.cosmoespai.com\/cat\/2021\/01\/29\/lexplotacio-minera-al-cinturo-dasteroides-una-font-de-recursos\/\" target=\"_blank\" rel=\"noreferrer noopener\">explotar les seves reserves de minerals<\/a><\/strong> per a utilitzar-los a la Terra. Aix\u00ed doncs, els asteroides poden ser un recurs econ\u00f2mic molt gran per a la humanitat, ja que contenen minerals que estan molt ben valorats.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Per altra banda, tamb\u00e9 existeixen asteroides que contenen aigua congelada (gel). Moltes teories especulen que l\u2019origen de l\u2019aigua, i per conseq\u00fcent de la vida, a la Terra, es va deure a l\u2019impacte d\u2019aquests meteorits, que contenen aigua, contra el nostre planeta.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>Entrades Similars:<\/strong><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2021\/01\/29\/lexplotacio-minera-al-cinturo-dasteroides-una-font-de-recursos\/\">L\u2019explotaci\u00f3 minera al cintur\u00f3 d\u2019asteroides, una font de recursos<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2021\/01\/15\/lorigen-i-la-formacio-del-cinturo-dasteroides\/\">L\u2019origen i la formaci\u00f3 del cintur\u00f3 d\u2019asteroides<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2021\/01\/22\/els-tipus-de-planetes-que-hi-ha-al-sistema-solar-i-les-seves-caracteristiques\/\">Els tipus de planetes que hi ha al sistema solar i les seves caracter\u00edstiques<\/a><\/p>\n\n\n\n<p><strong>Entrades Populars:<\/strong><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2020\/09\/09\/perque-la-lluna-nomes-ens-ensenya-una-cara\/\">Perqu\u00e8 la Lluna nom\u00e9s ens ensenya una cara?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2020\/12\/11\/stephenson-2-18-lestrella-mes-gran-coneguda-a-lunivers\/\">Stephenson 2-18, l\u2019estrella m\u00e9s gran coneguda a l\u2019univers<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2021\/02\/05\/la-brossa-espacial-un-gran-problema\/\">La brossa espacial, un gran problema<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2021\/01\/01\/perque-no-es-poden-sentir-sons-a-lespai\/\">Perqu\u00e8 no es poden sentir sons a l\u2019espai?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2021\/01\/08\/quins-son-els-requisits-per-a-ser-un-planeta\/\">Quins s\u00f3n els requisits per a ser un planeta?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2020\/11\/06\/els-satellits-de-jupiter-una-gran-familia\/\">Els sat\u00e8l\u00b7lits de J\u00fapiter, una gran fam\u00edlia<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2020\/10\/10\/quina-mida-i-forma-tindrien-els-extraterrestres\/\">Quina mida i forma tindrien els extraterrestres?<\/a><\/p>\n\n\n\n<p><strong>Entrades Recents:<\/strong><\/p>\n\n\n<ul class=\"wp-block-latest-posts__list is-grid columns-3 wp-block-latest-posts\"><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/com-viatjar-al-futur-sense-violar-les-lleis-de-la-fisica\/\">Com Viatjar al Futur Sense Violar les Lleis de la F\u00edsica<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/que-es-la-gravetat\/\">Qu\u00e8 \u00e9s la gravetat?<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/per-que-hi-ha-mes-materia-que-antimateria-a-lunivers\/\">Per qu\u00e8 hi ha m\u00e9s mat\u00e8ria que antimat\u00e8ria a l\u2019univers?<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/que-es-lantimateria\/\">Qu\u00e8 \u00e9s l\u2019antimat\u00e8ria?<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/per-que-els-centres-de-les-galaxies-contenen-forats-negres\/\">Per qu\u00e8 els centres de les gal\u00e0xies contenen forats negres?<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>El cintur\u00f3 d\u2019asteroides est\u00e0 situat entre les \u00f2rbites de Mart i J\u00fapiter, i s\u2019ha estudiat molt des de la seva descoberta al 1766. Sabem que<span class=\"read-more-link\"><a class=\"read-more\" href=\"https:\/\/www.cosmoespai.com\/cat\/que-conte-el-cinturo-dasteroides\/\">Continuar llegint<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":260,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":""},"categories":[228],"tags":[241,248,229,186,249,148,250],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/02\/Cintur\u00f3Asteroides_Qu\u00e8Cont\u00e9.jpg?fit=720%2C405","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":240,"url":"https:\/\/www.cosmoespai.com\/cat\/lorigen-i-la-formacio-del-cinturo-dasteroides\/","url_meta":{"origin":259,"position":0},"title":"L\u2019origen i la formaci\u00f3 del cintur\u00f3 d\u2019asteroides","author":"Ferran","date":"15 de gener de 2021","format":false,"excerpt":"El sistema solar est\u00e0 format per una quantitat enorme de cossos celestes. A part dels 8 planetes que orbiten el Sol, tamb\u00e9 hi ha una gran quantitat de cossos menors agrupats en grans sistemes. Distingim tres sistemes d\u2019asteroides al sistema solar: el n\u00favol de Oort, el cintur\u00f3 de Kuiper i\u2026","rel":"","context":"A &quot;Cintur\u00f3 d'Asteroides&quot;","block_context":{"text":"Cintur\u00f3 d'Asteroides","link":"https:\/\/www.cosmoespai.com\/cat\/category\/cinturo-dasteroides\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/01\/Formaci\u00f3_Cintur\u00f3Asteroides.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/01\/Formaci\u00f3_Cintur\u00f3Asteroides.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/01\/Formaci\u00f3_Cintur\u00f3Asteroides.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/01\/Formaci\u00f3_Cintur\u00f3Asteroides.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":252,"url":"https:\/\/www.cosmoespai.com\/cat\/lexplotacio-minera-al-cinturo-dasteroides-una-font-de-recursos\/","url_meta":{"origin":259,"position":1},"title":"L\u2019explotaci\u00f3 minera al cintur\u00f3 d\u2019asteroides, una font de recursos","author":"Ferran","date":"29 de gener de 2021","format":false,"excerpt":"Al cintur\u00f3 d\u2019asteroides s\u2019hi amaguen moltes riqueses, entre les quals s\u2019hi troben minerals, alguns dels quals s\u00f3n molt escassos a la Terra. L\u2019explotaci\u00f3 del cintur\u00f3 d\u2019asteroides pot ser el futur de l\u2019economia mundial. Per qu\u00e8 valen tant? Molts dels asteroides que cont\u00e9 el cintur\u00f3 d\u2019asteroides estan formats per minerals rocosos,\u2026","rel":"","context":"A &quot;Cintur\u00f3 d'Asteroides&quot;","block_context":{"text":"Cintur\u00f3 d'Asteroides","link":"https:\/\/www.cosmoespai.com\/cat\/category\/cinturo-dasteroides\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/01\/Explotaci\u00f3_MineraAst.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/01\/Explotaci\u00f3_MineraAst.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/01\/Explotaci\u00f3_MineraAst.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/01\/Explotaci\u00f3_MineraAst.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":363,"url":"https:\/\/www.cosmoespai.com\/cat\/les-diferencies-entre-els-cometes-i-els-asteroides\/","url_meta":{"origin":259,"position":2},"title":"Les difer\u00e8ncies entre els cometes i els asteroides","author":"Ferran","date":"28 de maig de 2021","format":false,"excerpt":"Asteroides i cometes tenen algunes caracter\u00edstiques en com\u00fa, per\u00f2 les seves difer\u00e8ncies no s\u00f3n poques, i, distingir entre aquests dos cossos celestes, pot donar lloc a confusions. Composici\u00f3 La major de les difer\u00e8ncies entre un cometa i un asteroide \u00e9s el material a partir del qual estan formats. Mentre que\u2026","rel":"","context":"A &quot;La Terra&quot;","block_context":{"text":"La Terra","link":"https:\/\/www.cosmoespai.com\/cat\/category\/sistema-solar\/la-terra\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/05\/Dif_Cometa_Asteroide.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/05\/Dif_Cometa_Asteroide.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/05\/Dif_Cometa_Asteroide.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/05\/Dif_Cometa_Asteroide.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":325,"url":"https:\/\/www.cosmoespai.com\/cat\/quina-mida-tenen-els-asteroides\/","url_meta":{"origin":259,"position":3},"title":"Quina mida tenen els asteroides?","author":"Ferran","date":"23 d'abril de 2021","format":false,"excerpt":"Els asteroides es concentren majorit\u00e0riament en llocs concrets del sistema solar, com el conegut cintur\u00f3 d\u2019asteroides, el cintur\u00f3 de Kuiper (m\u00e9s enll\u00e0 de l\u2019\u00f2rbita de Nept\u00fa), i el n\u00favol d\u2018Oort, que cont\u00e9 milers de milions de cometes i asteroides, alguns del quals, de tant en tant, s\u2019apropen a la Terra\u2026","rel":"","context":"A &quot;Cintur\u00f3 d'Asteroides&quot;","block_context":{"text":"Cintur\u00f3 d'Asteroides","link":"https:\/\/www.cosmoespai.com\/cat\/category\/cinturo-dasteroides\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/04\/Mida_Asteroides.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/04\/Mida_Asteroides.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/04\/Mida_Asteroides.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/04\/Mida_Asteroides.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":401,"url":"https:\/\/www.cosmoespai.com\/cat\/ceres-lunic-planeta-na-del-cinturo-dasteroides\/","url_meta":{"origin":259,"position":4},"title":"Ceres, l\u2019\u00fanic planeta na del cintur\u00f3 d\u2019asteroides","author":"Ferran","date":"9 de juliol de 2021","format":false,"excerpt":"El cintur\u00f3 d\u2019asteroides \u00e9s una zona situada entre les \u00f2rbites de Mart i J\u00fapiter en la qual hi trobem milions d\u2019asteroides de totes mides, que van des dels mil\u00b7l\u00edmetres de di\u00e0metre fins a les centenes de metres i fins i tot kil\u00f2metres. Tots aquests asteroides contenen elements molt valorats que\u2026","rel":"","context":"A &quot;Cintur\u00f3 d'Asteroides&quot;","block_context":{"text":"Cintur\u00f3 d'Asteroides","link":"https:\/\/www.cosmoespai.com\/cat\/category\/cinturo-dasteroides\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/07\/Ceres.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/07\/Ceres.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/07\/Ceres.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/07\/Ceres.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":406,"url":"https:\/\/www.cosmoespai.com\/cat\/quina-possibilitat-hi-ha-de-morir-per-un-meteorit\/","url_meta":{"origin":259,"position":5},"title":"Quina possibilitat hi ha de morir per un meteorit?","author":"Ferran","date":"16 de juliol de 2021","format":false,"excerpt":"Pot semblar que morir a causa de l\u2019impacte d\u2019un meteorit a la Terra \u00e9s un fenomen molt improbable. No obstant, s\u2019estima que cada any hi ha v\u00e0ries persones que moren per impactes de meteorits. S\u00f3n roques de diferents mides viatjant a milers de kil\u00f2metres per hora, i si una d\u2019aquestes,\u2026","rel":"","context":"A &quot;La Terra&quot;","block_context":{"text":"La Terra","link":"https:\/\/www.cosmoespai.com\/cat\/category\/sistema-solar\/la-terra\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/07\/Morir_Meteorit.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/07\/Morir_Meteorit.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/07\/Morir_Meteorit.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/07\/Morir_Meteorit.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/259"}],"collection":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/comments?post=259"}],"version-history":[{"count":1,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/259\/revisions"}],"predecessor-version":[{"id":261,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/259\/revisions\/261"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/media\/260"}],"wp:attachment":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/media?parent=259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/categories?post=259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/tags?post=259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}