{"id":72538,"date":"2024-03-17T02:40:57","date_gmt":"2024-03-17T01:40:57","guid":{"rendered":"https:\/\/www.parcastronomicprades.cat\/?p=72538"},"modified":"2024-03-17T02:40:57","modified_gmt":"2024-03-17T01:40:57","slug":"tv3-oportunitat-unica-per-veure-el-cometa-12p-pons-brooks-sobre-el-cel-de-catalunya","status":"publish","type":"post","link":"https:\/\/www.parcastronomicprades.cat\/es\/tv3-oportunitat-unica-per-veure-el-cometa-12p-pons-brooks-sobre-el-cel-de-catalunya\/","title":{"rendered":"TV3: Oportunitat \u00fanica per veure el cometa 12P\/Pons-Brooks sobre el cel de Catalunya"},"content":{"rendered":"<header class=\"R-itemNotiInfo\">\n<h1 class=\"titol\">Oportunitat \u00fanica per veure el cometa 12P\/Pons-Brooks sobre el cel de Catalunya<\/h1>\n<div class=\"wrapper-autor-data-compartir\">\n<div class=\"R-autorData noFoto C-dosDates \">\n<div class=\"F-autorData C-dosDates\"><small class=\"autor\">Alberto Alc\u00e1ntara<\/small><time class=\"data\" datetime=\"2024-03-16 13:15\">16\/03\/2024 &#8211; 13.15<\/time><span class=\"data\">Actualitzat<\/span><time class=\"data\" datetime=\"2024-03-16 13:55\">16\/03\/2024 &#8211; 13.55<\/time><\/div>\n<\/div>\n<div class=\"R-rightShare C-dosDates\">\n<div class=\"F-addThisTop\">\n<div class=\"wrapper_M-compartir C-dreta C-neutre C-itemNoti_dosDates\">\n<div id=\"M-compartirTop\" class=\"M-compartir noGapAfter\" role=\"region\" aria-label=\"Comparteix\" data-mode=\"pu-basic\" data-titol=\"\" data-url=\"\">\n<div class=\"ico-facebook2\"><span class=\"sr-only\">compartir a Facebook<\/span><\/div>\n<div class=\"ico-twitter\"><span class=\"sr-only\">compartir a X<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"F-permestard C-separador\">\n<div class=\"botoitem-view  view-attached\" data-tipus_contingut=\"NOT_NOTICIA\" data-idint=\"3282542\" data-nom=\"Meteorologia\" data-nom_programa=\"\" data-is_ru=\"\" data-caducat=\"0\">\n<div class=\"M-htmltwig-pmtard\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/header>\n<div class=\"R-itemNotiCos\">\n<p>Aquests dies tenim una oportunitat \u00fanica per veure des de Catalunya el pas del\u00a0<strong>cometa 12P\/Pons-Brooks, un dels cometes peri\u00f2dics coneguts m\u00e9s brillants.<\/strong>\u00a0Ja \u00e9s visible amb binocularsen condicions de cel fosc.<\/p>\n<h2>\n<strong>Com observar-lo?<\/strong><\/h2>\n<p>Com sempre que vulguem contemplar el cel nocturn, cal buscar un indret amb un\u00a0<strong>m\u00ednim de contaminaci\u00f3 lum\u00ednica:\u00a0<\/strong>allunyar-se de la ciutat i escollir un lloc amb un horitz\u00f3 clar. I abrigar-se, que les nits encara s\u00f3n fredes!<\/p>\n<p>Per localitzar el cometa, podeu ajudar-vos amb eines com\u00a0<a href=\"https:\/\/theskylive.com\/planetarium?obj=12p\">TheSkylive.com<\/a>. Fins ara, la refer\u00e8ncia era la gal\u00e0xia d&#8217;Andr\u00f2meda. Aqu\u00ed teniu un exemple de com apareixia el cometa el dia 11 de mar\u00e7 entre Andr\u00f2meda i la gal\u00e0xia del Triangle. Aix\u00ed es va fotografiar des del\u00a0<strong>Mirador Astron\u00f2mic de Sant Roc<\/strong>\u00a0(imatges: Parc Astron\u00f2mic Muntanyes de Prades).<\/p>\n<figure class=\"imatge\"><img decoding=\"async\" class=\"CKEditorImageContainer_imatgeneutre\" src=\"https:\/\/img.ccma.cat\/multimedia\/jpg\/0\/8\/1710575316380_670.jpg\" alt=\"\" \/><figcaption>(Parc Astron\u00f2mic Muntanyes de Prades)<\/figcaption><\/figure>\n<p>L&#8217;astrofot\u00f2graf\u00a0<a href=\"https:\/\/twitter.com\/astrocatinfo\">Aleix Roig<\/a>\u00a0dibuixava aquest mapa del cel sobre l&#8217;espectacular imatge del cometa.<br \/>\n&nbsp;<\/p>\n<p>Durant els pr\u00f2xims dies, cal referenciar-se amb la<strong>\u00a0constel\u00b7laci\u00f3 dels Peixos.\u00a0<\/strong>Cap al 27 de mar\u00e7, caldr\u00e0 buscar la\u00a0<strong>constel\u00b7laci\u00f3 d&#8217;\u00c0ries.\u00a0<\/strong>Al voltant d&#8217;aquelles dates, el cometa<strong>\u00a0podria ser observable a simple vista<\/strong>\u00a0si es gaudeix\u00a0de bones condicions d&#8217;observaci\u00f3.<\/p>\n<p>El millor moment de la nit \u00e9s just despr\u00e9s del capvespre, i l&#8217;ideal \u00e9s utilitzar uns binoculars o un telescopi. Ara entrem en una fase lunar creixent, que acabar\u00e0 amb la lluna plena del 25 de mar\u00e7. Aix\u00f2 \u00e9s un fet que complicar\u00e0 l&#8217;observaci\u00f3.<\/p>\n<figure class=\"imatge\"><img decoding=\"async\" class=\"CKEditorImageContainer_imatgeneutre\" src=\"https:\/\/img.ccma.cat\/multimedia\/jpg\/6\/1\/1710589380416_670.jpg\" alt=\"\" \/><figcaption>El cometa des d&#8217;Ares dels Oms (Val\u00e8ncia), el 12 de mar\u00e7 (Roger Mira)<\/figcaption><\/figure>\n<p>El cometa<strong>\u00a0ser\u00e0 visible des de l&#8217;hemisferi nord fins a principis de l&#8217;abril<\/strong>. El 21 d&#8217;abril es donar\u00e0 el seu pas pel periheli, el punt de l&#8217;\u00f2rbita m\u00e9s pr\u00f2xim\u00a0al\u00a0Sol. Just despr\u00e9s del periheli, el cometa desapareixer\u00e0 del cel nocturn a l&#8217;hemisferi nord, i ser\u00e0 visible des de l&#8217;hemisferi sud, encara que la seva brillantor aparent disminuir\u00e0. El 2 de juny, el cometa passar\u00e0 a uns 230 milions de quil\u00f2metres de dist\u00e0ncia de la Terra. Ser\u00e0 el moment de m\u00e0xima proximitat.<\/p>\n<h2><strong>Hist\u00f2ria i caracter\u00edstiques<\/strong><\/h2>\n<p>El cometa 12P\/Pons-Brooks el van descobrir, de manera independent, els astr\u00f2noms francesos\u00a0<strong>Jean-Louis Pons<\/strong>\u00a0i Alexis Bouvard, i el rus Vincent Wisniewsky, l&#8217;any 1812. \u00c9s un cometa peri\u00f2dic, i el 1883 va ser observat pel nord-americ\u00e0\u00a0<strong>William Robert Brooks.\u00a0<\/strong>El nom del cometa es va establir a partir de les dues primeres aparicions a prop del periheli.<\/p>\n<p>El cometa t\u00e9\u00a0un\u00a0<strong>per\u00edode orbital d&#8217;uns 71 anys<\/strong>, i per aix\u00f2 es categoritza com a\u00a0<strong>cometa de tipus Halley<\/strong>\u00a0(cometes amb un per\u00edode d&#8217;entre 20 i 200 anys). L&#8217;\u00faltim pas del cometa pel periheli va tenir lloc el 22 de maig del 1954. La pr\u00f2xima oportunitat de contemplar-lo ser\u00e0 l&#8217;estiu del 2095, quan el \u00a012P\/Pons-Brooks passi pel periheli, el 10 d&#8217;agost.<\/p>\n<p>\u00c9s un dels cometes peri\u00f2dics coneguts m\u00e9s brillants. S&#8217;estima que el nucli del cometa t\u00e9 uns\u00a0<strong>30 quil\u00f2metres de di\u00e0metre.<\/strong><\/p>\n<h2><strong>Curiositats<\/strong><\/h2>\n<p>Alguns mitjans de comunicaci\u00f3 parlen del 12P\/Pons-Brooks com el\u00a0<strong>\u00abcometa diable\u00bb<\/strong>. La denominaci\u00f3 ve de la<strong>\u00a0forma de banyes<\/strong>\u00a0que va assolir la coma del cometa el juliol del 2023, segons va observar l&#8217;astr\u00f2nom Elek Tam\u00e1s.<\/p>\n<p>La coma es forma quan els materials congelats del nucli del cometa se\u00a0sublimen (passen directament de l&#8217;estat s\u00f2lid a gas). El gas sublimat arrossega pols del nucli del cometa i forma una capa exterior que s&#8217;anomena\u00a0<strong>\u00abcoma\u00bb o \u00abcabellera\u00bb<\/strong>.<\/p>\n<p>L&#8217;estiu passat, el cometa va experimentar un \u00abesclat\u00bb, un alliberament sobtat de gas i pols, que va fer augmentar la seva brillantor i que va provocar una forma caracter\u00edstica de ferradura o banyes. Alguns, fins i tot, hi van veure el Falc\u00f3 Mil\u00b7lenari, l&#8217;emblem\u00e0tica nau espacial de la saga de \u00abLa guerra de les gal\u00e0xies\u00bb.<\/p>\n<h2>\n<strong>Espectacle al cel<\/strong><\/h2>\n<p>Sigui com sigui, aprofiteu aquests dies per contemplar el cel. Encara que no pugueu\u00a0veure el cometa sempre trobareu motius per gaudir-ne. Si ho feu, podeu compartir les vostres fotografies amb nosaltres a la secci\u00f3 de\u00a0<a href=\"https:\/\/www.ccma.cat\/el-temps\/fotos\/\">participacions del portal del Temps<\/a>.<\/p>\n<\/div>\n<p><a href=\"https:\/\/www.ccma.cat\/el-temps\/oportunitat-unica-per-veure-el-cometa-12ppons-brooks-sobre-el-cel-de-catalunya\/noticia\/3282542\/\">VEURE LA NOT\u00cdCIA<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Oportunitat \u00fanica per veure el cometa 12P\/Pons-Brooks sobre el cel de Catalunya Alberto Alc\u00e1ntara16\/03\/2024 &#8211; 13.15Actualitzat16\/03\/2024 &#8211; 13.55 compartir a [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":72539,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[75],"tags":[],"class_list":["post-72538","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/posts\/72538","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/comments?post=72538"}],"version-history":[{"count":1,"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/posts\/72538\/revisions"}],"predecessor-version":[{"id":72542,"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/posts\/72538\/revisions\/72542"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/media\/72539"}],"wp:attachment":[{"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/media?parent=72538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/categories?post=72538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/tags?post=72538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}