{"id":73199,"date":"2024-03-29T11:28:14","date_gmt":"2024-03-29T10:28:14","guid":{"rendered":"https:\/\/www.parcastronomicprades.cat\/diari-ara-atents-al-cel-passara-el-cometa-que-nomes-es-deixa-veure-un-cop-a-la-vida\/"},"modified":"2024-03-29T11:28:14","modified_gmt":"2024-03-29T10:28:14","slug":"diari-ara-atents-al-cel-passara-el-cometa-que-nomes-es-deixa-veure-un-cop-a-la-vida","status":"publish","type":"post","link":"https:\/\/www.parcastronomicprades.cat\/es\/diari-ara-atents-al-cel-passara-el-cometa-que-nomes-es-deixa-veure-un-cop-a-la-vida\/","title":{"rendered":"DIARI ARA: Atents al cel: passar\u00e0 el cometa que nom\u00e9s es deixa veure un cop a la vida"},"content":{"rendered":"
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L’astre 12P\/Pons-Brooks es pot arribar a observar a simple vista aquesta Setmana Santa<\/h2>\n
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\"Imatge<\/picture>
Imatge recent del cometa 12P\/Pons-Brooks.<\/span> CEDIDA PEL PARC ASTRON\u00d2MIC MUNTANYES DE PRADES<\/span><\/figcaption><\/figure>\n<\/div>\n<\/div>\n
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BARCELONA<\/span>L’agenda astron\u00f2mica ens ofereix aquests dies una oportunitat \u00fanica per gaudir d’un fenomen que t\u00e9 lloc ben poques vegades. Es tracta del pas del cometa 12P\/Pons-Brooks, que nom\u00e9s \u00e9s visible un cop cada 71 anys des del nostre planeta. Per tant, som davant d’un esdeveniment que es pot gaudir tan sols un o dos cops al llarg de les nostres vides. Al llarg del mes d’abril, el cometa deixar\u00e0 de ser visible a l’hemisferi nord i, a partir de llavors, nom\u00e9s es veur\u00e0 des de l’hemisferi sud.<\/p>\n

L’astre ja es pot veure des de fa dies amb l’ajuda de binocles o aparells d’astronomia. Tanmateix, des de dimecres i al llarg dels dies clau de Setmana Santa es podria observar a simple vista, per\u00f2 sempre que es compleixin unes condicions concretes.<\/p>\n

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Quan i com veure el cometa<\/h3>\n

La brillantor del cometa est\u00e0 augmentant i aix\u00f2 pot permetre que sigui visible a ull nu sense necessitat de cap aparell. Haurem d’aprofitar molt b\u00e9 els primers instants de la nit, ja que \u00e9s quan hi haur\u00e0 les millors condicions per a la seva observaci\u00f3.<\/p>\n

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En aquest sentit, i segons ha explicat a l’ARA l’astrofot\u00f2graf del Parc Astron\u00f2mic Muntanyes de Prades, Aleix Roig, la millor franja hor\u00e0ria per veure aquests dies el cometa \u00e9s entre les 20.30 h i les 21 h. \u00c9s just quan la nit ja est\u00e0 totalment tancada, la Lluna encara no ha sortit i l’astre es troba a l’horitz\u00f3 abans de pondre’s per l’oest. Entrada la nit i de matinada ja no ser\u00e0 visible.<\/p>\n

Per tant, aprofitem abans de sopar per gaudir de l’espectacle. Haurem de mirar en direcci\u00f3 oest i localitzar la constel\u00b7laci\u00f3 d’\u00c0ries. Segons explica Roig, el cometa es troba aquests dies a prop de l’estrella Hamal, la m\u00e9s important i brillant d’aquesta constel\u00b7laci\u00f3.<\/p>\n

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No obstant aix\u00f2, haurem de tenir en compte altres factors. Per exemple, com que el cometa es troba for\u00e7a baix a l’horitz\u00f3 oest, caldr\u00e0 anar a zones elevades o planes sense edificis, arbres o muntanyes que n’obstrueixin la visi\u00f3. Per tant, l’\u00e0rea de Ponent, cims de muntanya o l’altipl\u00e0 central poden ser unes bones opcions. I, per descomptat, si volem observar l’astre caldr\u00e0 fugir de la contaminaci\u00f3 lum\u00ednica de les grans ciutats.<\/p>\n

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Pendents del temps<\/h3>\n

Com sempre, les condicions meteorol\u00f2giques jugaran un paper fonamental a l’hora de poder veure el cometa. I ja sabem que la meteorologia i l’astronomia sovint no sempre van de bracet. Aquesta Setmana Santa ens trobem de ple en una situaci\u00f3 de pas de fronts atl\u00e0ntics que mantenen un temps molt canviant.<\/p>\n

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M\u00e9s pluja els dies clau de Setmana Santa: on i quan plour\u00e0?<\/div>\n<\/div>\n<\/div>\n

Els n\u00favols poden fer la guitza a l’hora d’observar el cel al llarg de les pr\u00f2ximes nits. On menys n\u00favols hi haur\u00e0 ser\u00e0 segurament a la costa i al nord-est del pa\u00eds. En canvi, la zona del Pirineu de Lleida i altres zones de l’oest \u00e9s on hi haur\u00e0 la nuvolositat m\u00e9s abundant amb algunes precipitacions. El cap de setmana la situaci\u00f3 empitjoraria a tot arreu.<\/p>\n

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Un cometa \u00fanic<\/h3>\n

El 12P\/Pons-Brooks \u00e9s un dels cometes peri\u00f2dics m\u00e9s brillants. Orbita el nostre sol un cop cada 71 anys. Per tant, l’\u00faltim cop que va ser visible des de la Terra va ser l’any 1954 i no es tornar\u00e0 a deixar veure fins al 2095. Va ser descobert l’any 1812 pel franc\u00e8s Jean-Louis Pons i novament l’any 1883 pel nord-americ\u00e0 William Robert Brooks. Per aquest motiu, l’astre es va batejar amb els dos cognoms. Popularment, per\u00f2, tamb\u00e9 rep el nom de cometa del diable<\/em> perqu\u00e8 en algunes observacions la seva cua (anomenada coma<\/em>) va mostrar formes de banyes.<\/p>\n<\/div>\n

VER LA NOTICIA<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

L’astre 12P\/Pons-Brooks es pot arribar a observar a simple vista aquesta Setmana Santa Imatge recent del cometa 12P\/Pons-Brooks. CEDIDA PEL […]<\/p>\n","protected":false},"author":5,"featured_media":73195,"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-73199","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\/73199","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=73199"}],"version-history":[{"count":0,"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/posts\/73199\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/media\/73195"}],"wp:attachment":[{"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/media?parent=73199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/categories?post=73199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.parcastronomicprades.cat\/es\/wp-json\/wp\/v2\/tags?post=73199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}