{"id":79987,"date":"2019-11-04T10:40:42","date_gmt":"2019-11-04T13:40:42","guid":{"rendered":"http:\/\/www.radiopajeu.com.br\/portal\/?p=79987"},"modified":"2019-11-04T10:40:42","modified_gmt":"2019-11-04T13:40:42","slug":"fenomeno-solar-chama-atencao-no-sertao-entenda","status":"publish","type":"post","link":"https:\/\/www.radiopajeu.com.br\/portal\/fenomeno-solar-chama-atencao-no-sertao-entenda\/","title":{"rendered":"Fen\u00f4meno solar chama aten\u00e7\u00e3o no Sert\u00e3o. Entenda"},"content":{"rendered":"<p><em>Por Nill J\u00fanior<\/em><\/p>\n<p>Um fen\u00f4meno chamou a aten\u00e7\u00e3o de ouvintes da R\u00e1dio Paje\u00fa na manh\u00e3 desta segunda-feira (4), com a forma\u00e7\u00e3o de dois arco-iris ao redor do sol. Alguns acharam tratar-se sinal de chuva, outros que era um sinal dos tempos. Houve quem achasse que era muito bonito, mas sem dar bola a especula\u00e7\u00f5es. V\u00e1rias cidades sertanejas registraram o fen\u00f4meno. Abaixo alguns registros de nossos ouvintes:<\/p>\n<div id='gallery-1' class='gallery galleryid-79987 gallery-columns-4 gallery-size-colormag-featured-image'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.371.jpeg'><img loading=\"lazy\" decoding=\"async\" width=\"593\" height=\"445\" src=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.371.jpeg\" class=\"attachment-colormag-featured-image size-colormag-featured-image\" alt=\"\" srcset=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.371.jpeg 1032w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.371-300x225.jpeg 300w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.371-768x576.jpeg 768w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.371-1024x768.jpeg 1024w\" sizes=\"auto, (max-width: 593px) 100vw, 593px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.37.jpeg'><img loading=\"lazy\" decoding=\"async\" width=\"593\" height=\"445\" src=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.37.jpeg\" class=\"attachment-colormag-featured-image size-colormag-featured-image\" alt=\"\" srcset=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.37.jpeg 1040w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.37-300x225.jpeg 300w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.37-768x576.jpeg 768w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.37-1024x768.jpeg 1024w\" sizes=\"auto, (max-width: 593px) 100vw, 593px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.381.jpeg'><img loading=\"lazy\" decoding=\"async\" width=\"593\" height=\"445\" src=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.381.jpeg\" class=\"attachment-colormag-featured-image size-colormag-featured-image\" alt=\"\" srcset=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.381.jpeg 1040w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.381-300x225.jpeg 300w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.381-768x576.jpeg 768w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.381-1024x768.jpeg 1024w\" sizes=\"auto, (max-width: 593px) 100vw, 593px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.38.jpeg'><img loading=\"lazy\" decoding=\"async\" width=\"593\" height=\"445\" src=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.38.jpeg\" class=\"attachment-colormag-featured-image size-colormag-featured-image\" alt=\"\" srcset=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.38.jpeg 1032w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.38-300x225.jpeg 300w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.38-768x576.jpeg 768w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.38-1024x768.jpeg 1024w\" sizes=\"auto, (max-width: 593px) 100vw, 593px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.391.jpeg'><img loading=\"lazy\" decoding=\"async\" width=\"593\" height=\"445\" src=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.391.jpeg\" class=\"attachment-colormag-featured-image size-colormag-featured-image\" alt=\"\" srcset=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.391.jpeg 1040w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.391-300x225.jpeg 300w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.391-768x576.jpeg 768w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.391-1024x768.jpeg 1024w\" sizes=\"auto, (max-width: 593px) 100vw, 593px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.392.jpeg'><img loading=\"lazy\" decoding=\"async\" width=\"593\" height=\"445\" src=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.392.jpeg\" class=\"attachment-colormag-featured-image size-colormag-featured-image\" alt=\"\" srcset=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.392.jpeg 1280w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.392-300x225.jpeg 300w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.392-768x576.jpeg 768w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.392-1024x768.jpeg 1024w\" sizes=\"auto, (max-width: 593px) 100vw, 593px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.39.jpeg'><img loading=\"lazy\" decoding=\"async\" width=\"593\" height=\"445\" src=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.39.jpeg\" class=\"attachment-colormag-featured-image size-colormag-featured-image\" alt=\"\" srcset=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.39.jpeg 1024w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.39-300x225.jpeg 300w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.39-768x576.jpeg 768w\" sizes=\"auto, (max-width: 593px) 100vw, 593px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.40.jpeg'><img loading=\"lazy\" decoding=\"async\" width=\"250\" height=\"445\" src=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.40.jpeg\" class=\"attachment-colormag-featured-image size-colormag-featured-image\" alt=\"\" srcset=\"https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.40.jpeg 720w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.40-169x300.jpeg 169w, https:\/\/www.radiopajeu.com.br\/portal\/wp-content\/uploads\/2019\/11\/WhatsApp-Image-2019-11-04-at-10.23.40-576x1024.jpeg 576w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<p>Na verdade, trata-se de um fen\u00f4meno chamado Halo Solar. O\u00a0fen\u00f4meno \u00e9 considerado raro por especialistas: \u00e9\u00a0preciso ter as condi\u00e7\u00f5es exatas e muita sorte para apreciar um.\u00a0Ele costuma dar o ar da gra\u00e7a em per\u00edodos secos, quando o c\u00e9u est\u00e1 sem nuvens muito densas. Isso facilita a observa\u00e7\u00e3o do fen\u00f4meno que, em contraste com o c\u00e9u azul, fica ainda mais observ\u00e1vel.<\/p>\n<p>O halo solar \u00e9 um fen\u00f4meno \u00f3ptico que acontece na troposfera, que \u00e9 a camada mais baixa da atmosfera terrestre, com espessura de 12 km podendo alcan\u00e7ar at\u00e9 17 km de altura. Para que ele se forme \u00e9 preciso algumas condi\u00e7\u00f5es.<\/p>\n<p>A primeira \u00e9 que haja cristais de gelo na atmosfera terrestre, pois s\u00e3o eles que v\u00e3o funcionar como espelhos das\u00a0luzes, causando a dispers\u00e3o dos raios solares. Portanto, quando a luz do Sol \u00e9 refletida e refratada por esses gelos min\u00fasculos acontece o fen\u00f4meno.<\/p>\n<p>Essa refra\u00e7\u00e3o \u00e9 quando h\u00e1 uma mudan\u00e7a de dire\u00e7\u00e3o e velocidade da luz ao passar de um lugar para outro. Nesse caso, s\u00e3o os cristais presentes na atmosfera que fazem esse desvio. Eles funcionam como pequenos prismas que recebem a luz branca e a dividem em cores prim\u00e1rias. Da\u00ed surge uma\u00a0esp\u00e9cie de arco-\u00edris, que \u00e9 bastante apreciado.<\/p>\n<p>Embora algumas pessoas relacionem o halo solar \u00e0\u00a0chuva, especialistas garantem que a forma\u00e7\u00e3o do c\u00edrculo colorido ao redor do Sol nada tem a ver com a possibilidade de precipita\u00e7\u00f5es. Diferentemente do arco-\u00edris, que \u00e9 inerente \u00e0 \u00e1gua.<\/p>\n<p>Duas curiosidades merecem ser compartilhadas. A primeira \u00e9 que o halo solar n\u00e3o \u00e9 redondo por causa do formato do Sol e sim porque os cristais de gelo s\u00e3o hexagonais e acabam refletindo a luminosidade em forma de c\u00edrculo. A segunda \u00e9 que o halo tamb\u00e9m pode ser do tipo lunar, embora seja mais dif\u00edcil sua percep\u00e7\u00e3o por conta da escurid\u00e3o, o que acaba apagando um pouco o colorido do arco-\u00edris em forma de disco. Os motivos para a ocorr\u00eancia s\u00e3o os mesmos do solar.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Por Nill J\u00fanior Um fen\u00f4meno chamou a aten\u00e7\u00e3o de ouvintes da R\u00e1dio Paje\u00fa na manh\u00e3 desta segunda-feira (4), com a<\/p>\n","protected":false},"author":4,"featured_media":79996,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[1],"tags":[15,9566,4748,54],"class_list":["post-79987","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias","tag-afogados-da-ingazeira","tag-halo-solar","tag-pernambuco","tag-sertao"],"_links":{"self":[{"href":"https:\/\/www.radiopajeu.com.br\/portal\/wp-json\/wp\/v2\/posts\/79987","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.radiopajeu.com.br\/portal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.radiopajeu.com.br\/portal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.radiopajeu.com.br\/portal\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.radiopajeu.com.br\/portal\/wp-json\/wp\/v2\/comments?post=79987"}],"version-history":[{"count":1,"href":"https:\/\/www.radiopajeu.com.br\/portal\/wp-json\/wp\/v2\/posts\/79987\/revisions"}],"predecessor-version":[{"id":79997,"href":"https:\/\/www.radiopajeu.com.br\/portal\/wp-json\/wp\/v2\/posts\/79987\/revisions\/79997"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.radiopajeu.com.br\/portal\/wp-json\/wp\/v2\/media\/79996"}],"wp:attachment":[{"href":"https:\/\/www.radiopajeu.com.br\/portal\/wp-json\/wp\/v2\/media?parent=79987"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.radiopajeu.com.br\/portal\/wp-json\/wp\/v2\/categories?post=79987"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.radiopajeu.com.br\/portal\/wp-json\/wp\/v2\/tags?post=79987"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}