{"id":2308,"date":"2025-05-09T13:11:34","date_gmt":"2025-05-09T11:11:34","guid":{"rendered":"https:\/\/astrokit.uv.es\/?p=2308"},"modified":"2025-06-17T13:41:52","modified_gmt":"2025-06-17T11:41:52","slug":"la-via-lactia-2","status":"publish","type":"post","link":"https:\/\/astrokit.uv.es\/?p=2308","title":{"rendered":"La Via L\u00e0ctia &#8211; lectura f\u00e0cil"},"content":{"rendered":"\n<div class=\"wp-block-group has-heading-font-family eplus-wrapper has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\" wp-block-heading eplus-wrapper\">Qu\u00e8 \u00e9s la Via L\u00e0ctia?<\/h2>\n\n\n\n<p class=\" eplus-wrapper\">La&nbsp;<strong>Via L\u00e0ctia<\/strong>&nbsp;\u00e9s la gal\u00e0xia on vivim.<br>Una&nbsp;<strong>gal\u00e0xia<\/strong>&nbsp;\u00e9s un grup molt gran d\u2019estreles, gas, pols i altres elements.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">La Via L\u00e0ctia t\u00e9&nbsp;<strong>forma d\u2019espiral<\/strong>.<br>Aix\u00f2 vol dir que t\u00e9 bra\u00e7os que giren des del centre cap a fora, com una h\u00e8lix.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">A la Via L\u00e0ctia hi ha 3 parts importants:<\/p>\n\n\n<ul class=\" wp-block-list eplus-wrapper eplus-styles-uid-a62c2b\">\n<li class=\" eplus-wrapper\">El\u00a0<strong>bulb central<\/strong>, que est\u00e0 al centre.<\/li>\n\n\n\n<li class=\" eplus-wrapper\">El\u00a0<strong>disc<\/strong>, que t\u00e9 els bra\u00e7os en espiral.<\/li>\n\n\n\n<li class=\" eplus-wrapper\">L&#8217;<strong>halo<\/strong>, que \u00e9s una esfera que envolta tot el disc i el bulb.<\/li>\n<\/ul><\/div>\n\n\n\n<hr class=\" wp-block-separator has-alpha-channel-opacity eplus-wrapper\"\/>\n\n\n\n<div class=\"wp-block-group has-heading-font-family eplus-wrapper has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\" wp-block-heading eplus-wrapper\">On estem?<\/h2>\n\n\n\n<p class=\" eplus-wrapper\">El disc de la Via L\u00e0ctia \u00e9s molt gran.<br>T\u00e9 un&nbsp;<strong>di\u00e0metre<\/strong>&nbsp;d\u2019uns 100 mil anys llum.<br>Per\u00f2 \u00e9s molt prim: nom\u00e9s fa uns 1.000 anys llum de gruix.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">El disc no \u00e9s totalment pla. T\u00e9 una forma&nbsp;<strong>lleugerament corbada<\/strong>.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">El nostre&nbsp;<strong>Sistema Solar<\/strong>&nbsp;est\u00e0 en un dels bra\u00e7os del disc,<br>a uns&nbsp;<strong>26 mil anys llum<\/strong>&nbsp;del centre de la gal\u00e0xia.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">En eixe centre hi ha un&nbsp;<strong>forat negre molt gran<\/strong>,<br>anomenat&nbsp;<strong>Sagitari A<\/strong>*.<br>Este forat negre pesa unes&nbsp;<strong>4,2 milions de vegades m\u00e9s que el nostre Sol<\/strong>.<\/p>\n<\/div>\n\n\n\n<hr class=\" wp-block-separator has-alpha-channel-opacity eplus-wrapper\"\/>\n\n\n\n<div class=\"wp-block-group has-heading-font-family eplus-wrapper has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\" wp-block-heading eplus-wrapper\">Com sabem com \u00e9s la Via L\u00e0ctia?<\/h2>\n\n\n\n<p class=\" eplus-wrapper\">No podem vore la Via L\u00e0ctia des de fora,<br>perqu\u00e8 estem dins d\u2019ella.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Per\u00f2 els cient\u00edfics han utilitzat dades de telescopis,<br>com les que ha arreplegat la missi\u00f3 europea&nbsp;<strong>Gaia<\/strong>.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Tamb\u00e9 han comparat la Via L\u00e0ctia amb altres gal\u00e0xies semblants.<br>Aix\u00ed, han pogut imaginar com \u00e9s la nostra gal\u00e0xia.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Es pensa que la Via L\u00e0ctia t\u00e9 com a m\u00ednim<br><strong>100 mil milions d\u2019estreles<\/strong>,<br>i potser fins a&nbsp;<strong>400 mil milions<\/strong>.<\/p>\n<\/div>\n\n\n\n<hr class=\" wp-block-separator has-alpha-channel-opacity eplus-wrapper\"\/>\n\n\n\n<div class=\"wp-block-group has-heading-font-family eplus-wrapper has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\" wp-block-heading eplus-wrapper\">Quina forma t\u00e9 la Via L\u00e0ctia?<\/h2>\n\n\n\n<p class=\" eplus-wrapper\">La Via L\u00e0ctia \u00e9s una&nbsp;<strong>gal\u00e0xia espiral barrada<\/strong>.<br>Aix\u00f2 vol dir que t\u00e9 una barra d\u2019estreles al centre,<br>i des dels extrems d\u2019eixa barra ixen els&nbsp;<strong>bra\u00e7os espirals<\/strong>.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Estos bra\u00e7os es divideixen en altres bra\u00e7os m\u00e9s menuts.<br>All\u00ed \u00e9s on hi ha m\u00e9s estreles, gas i pols.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">El disc de la gal\u00e0xia est\u00e0 format per tots estos bra\u00e7os.<br>Encara que el disc&nbsp;<strong>no \u00e9s pla<\/strong>,<br>t\u00e9 una forma&nbsp;<strong>lleugerament corbada<\/strong>.<\/p>\n<\/div>\n\n\n\n<hr class=\" wp-block-separator has-alpha-channel-opacity eplus-wrapper\"\/>\n\n\n\n<div class=\"wp-block-group has-heading-font-family eplus-wrapper has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\" wp-block-heading eplus-wrapper\">Quines parts es veuen en el model 3D?<\/h2>\n\n\n\n<p class=\" eplus-wrapper\">Amb les dades de la missi\u00f3&nbsp;<strong>Gaia<\/strong>,<br>els cient\u00edfics han creat un model en 3D de la Via L\u00e0ctia.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">En este model es poden vore les seg\u00fcents parts:<\/p>\n\n\n<ul class=\" wp-block-list eplus-wrapper eplus-styles-uid-bcb03f\">\n<li class=\" eplus-wrapper\">El\u00a0<strong>nucli gal\u00e0ctic<\/strong>, que \u00e9s el centre. T\u00e9 forma d\u2019esfera.<\/li>\n\n\n\n<li class=\" eplus-wrapper\">La\u00a0<strong>barra central<\/strong>, allargada, amb moltes estreles, gas i pols.<\/li>\n\n\n\n<li class=\" eplus-wrapper\">Dos\u00a0<strong>bra\u00e7os espirals principals<\/strong>, que ixen dels extrems de la barra.<\/li>\n\n\n\n<li class=\" eplus-wrapper\"><strong>Bra\u00e7os secundaris<\/strong>, que ixen dels bra\u00e7os principals.<br>Estos bra\u00e7os tenen zones amb estreles grans (encara que en realitat no s\u00f3n tan grans, per\u00f2 en el model es veuen aix\u00ed per a poder distingir-les).<\/li>\n\n\n\n<li class=\" eplus-wrapper\"><strong>\u00c0rees llises entre els bra\u00e7os<\/strong>, on hi ha menys estreles, gas i pols.<\/li>\n<\/ul>\n\n\n<p class=\" eplus-wrapper\">L&#8217;<strong>halo<\/strong>&nbsp;no apareix en este model,<br>perqu\u00e8 es representa en un model diferent.<br>Pots vore\u2019l ac\u00ed:<br>\ud83d\udc49&nbsp;<a href=\"https:\/\/astrokit.uv.es\/?p=2149\" data-type=\"link\" data-id=\"https:\/\/astrokit.uv.es\/?p=2149\">https:\/\/astrokit.uv.es\/?p=2149<\/a><\/p>\n<\/div>\n\n\n\n<div style=\"height:60px\" aria-hidden=\"true\" class=\" wp-block-spacer eplus-wrapper\"><\/div>\n\n\n\n<p class=\"is-style-info has-heading-font-family has-custom-font eplus-wrapper\" style=\"font-family:heading\"><strong>Este treball ha sigut realitzat amb una ajuda de la convocat\u00f2ria de Projectes R+D+i \u201cProves de Concepte\u201d 2022 (PDC2022), finan\u00e7ada per la Uni\u00f3 Europea a trav\u00e9s dels Fons NextGenerationEU, Pla de Recuperaci\u00f3, Transformaci\u00f3 i Resili\u00e8ncia. Refer\u00e8ncia: PDC2022-133930-I00.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group eplus-wrapper has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<div style=\"height:40px\" aria-hidden=\"true\" class=\" wp-block-spacer eplus-wrapper\"><\/div>\n\n\n<div class=\"wp-block-columns eplus-wrapper is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex eplus-styles-uid-6e5966\">\n<div class=\"wp-block-column eplus-wrapper is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column eplus-wrapper is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<a class=\"gb-button gb-button-57382cc1 gb-button-text\" href=\"https:\/\/sirio.uv.es:9091\/sharing\/cidMFnEON\" target=\"_blank\" rel=\"noopener noreferrer\">Descarrega el model<\/a>\n<\/div>\n\n\n\n<div class=\"wp-block-column eplus-wrapper is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n<div style=\"height:67px\" aria-hidden=\"true\" class=\" wp-block-spacer eplus-wrapper\"><\/div>\n\n\n<p class=\"has-text-align-right has-text-color has-link-color has-heading-font-family has-medium-font-size has-custom-font eplus-wrapper wp-elements-5730e9fed40bf68dd92ae159764cd928 eplus-styles-uid-cfa858\" style=\"color:#90f808;font-family:heading\"><a href=\"https:\/\/astrokit.uv.es\/?page_id=405\" data-type=\"page\" data-id=\"405\">M\u00e9s not\u00edcies<\/a><\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Qu\u00e8 \u00e9s la Via L\u00e0ctia? La&nbsp;Via L\u00e0ctia&nbsp;\u00e9s la gal\u00e0xia on vivim.Una&nbsp;gal\u00e0xia&nbsp;\u00e9s un grup molt gran d\u2019estreles, gas, pols i altres elements. La Via L\u00e0ctia t\u00e9&nbsp;forma d\u2019espiral.Aix\u00f2 vol dir que t\u00e9 bra\u00e7os que giren des del centre cap a fora, com una h\u00e8lix. A la Via L\u00e0ctia hi ha 3 parts importants: On estem? El disc [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":2286,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","editor_plus_copied_stylings":"{}","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[76],"tags":[72,78],"class_list":["post-2308","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticies-lectura-facil","tag-galaxies","tag-via-lactia"],"jetpack_featured_media_url":"https:\/\/astrokit.uv.es\/wp-content\/uploads\/2025\/03\/MW-color.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/posts\/2308","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2308"}],"version-history":[{"count":10,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/posts\/2308\/revisions"}],"predecessor-version":[{"id":2928,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/posts\/2308\/revisions\/2928"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=\/wp\/v2\/media\/2286"}],"wp:attachment":[{"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2308"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astrokit.uv.es\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}