{"id":7687,"date":"2023-12-21T10:00:00","date_gmt":"2023-12-21T08:00:00","guid":{"rendered":"https:\/\/uni-mag.gr\/?p=7687"},"modified":"2024-01-07T14:57:50","modified_gmt":"2024-01-07T12:57:50","slug":"solar-corona","status":"publish","type":"post","link":"https:\/\/www.uni-mag.gr\/es\/solar-corona\/","title":{"rendered":"CORONA"},"content":{"rendered":"\n<p>\u00bfEn qu\u00e9 pensamos primero cuando escuchamos la palabra CORONA?<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-left has-medium-font-size\">A. CERVEZA CORONA<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/CoronaBeer.png\" alt=\"CoronaBeer\" class=\"wp-image-7491\" style=\"width:340px;height:auto\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Cerveza mexicana, agradable y ligera.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\">B. CORONA REAL\/CORONA<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-medium\"><img decoding=\"async\" src=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/ImperialCrown-300x300.png\" alt=\"La corona imperial\" class=\"wp-image-7495\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Corona real o corona del Reino Unido.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\">C. VIRUS CORONA<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2014\/06\/Coronavirus.png\" alt=\"coronavirus\" class=\"wp-image-7499\" style=\"width:345px;height:auto\"\/><\/figure>\n\n\n\n<p>Un tipo de este virus nos ha afectado bastante a todos. Alrededor de 7 millones de personas han muerto recientemente a causa del COVID-19. Puede encontrar m\u00e1s informaci\u00f3n en las respectivas p\u00e1ginas de Wikipedia. (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Coronavirus\">https:\/\/en.wikipedia.org\/wiki\/Coronavirus<\/a>). <\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-left has-medium-font-size\">D. CORONA SOLAR (o generalmente estelar) o CORONA<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"1478\" src=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/eclipse_20_04_2023_c.jpeg\" alt=\"\" class=\"wp-image-7858\" srcset=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/eclipse_20_04_2023_c.jpeg 2048w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/eclipse_20_04_2023_c-300x217.jpeg 300w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/eclipse_20_04_2023_c-1024x739.jpeg 1024w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/eclipse_20_04_2023_c-768x554.jpeg 768w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/eclipse_20_04_2023_c-1536x1109.jpeg 1536w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/eclipse_20_04_2023_c-277x200.jpeg 277w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-align-left\">La corona solar (corona) es la atm\u00f3sfera exterior del Sol y de todas las estrellas. Se extiende hasta millones de kil\u00f3metros sobre la superficie del Sol. Tiene una densidad muy baja (entre 10 y 12 veces m\u00e1s delgada que la atm\u00f3sfera terrestre). Debido a la baja emisividad \u00f3ptica en relaci\u00f3n con la superficie del Sol, la corona s\u00f3lo es visible durante un eclipse solar.(<a href=\"https:\/\/en.wikipedia.org\/wiki\/Stellar_corona\">https:\/\/en.wikipedia.org\/wiki\/Stellar_corona<\/a>). Durante el eclipse, el disco de la Luna pasa por delante del disco del Sol. As\u00ed no nos deslumbra la luz del Sol y podemos ver c\u00f3modamente su corona. Esto es exactamente lo que se ve en la foto de arriba: el disco solar ha sido cubierto, permitiendo que se vea la corona solar.<\/p>\n\n\n\n<p class=\"has-text-align-left\"><strong>Pero en el Sol sucede algo muy misterioso<\/strong>: la temperatura de la corona puede alcanzar los 1.000.000 de grados Kelvin*, mucho m\u00e1s que la temperatura de la capa anterior de la estrella. La experiencia nos dice que si el centro del Sol est\u00e1 muy caliente, a medida que nos alejamos de \u00e9l su temperatura deber\u00eda disminuir. Este descenso de temperatura lo observamos en un incendio: a medida que nos alejamos del fuego, su temperatura disminuye. Desafortunadamente, \u00a1los datos de observaci\u00f3n del Sol muestran exactamente lo contrario!<\/p>\n\n\n\n<p class=\"has-text-align-left\">El siguiente gr\u00e1fico que es de la Universidad de Florida en Am\u00e9rica (<a href=\"https:\/\/pressbooks.online.ucf.edu\/astronomybc\/chapter\/15-1-the-structure%20andcomposition-of-the-sun\/\">https:\/\/pressbooks.online.ucf.edu\/astronomybc\/chapter\/15-1-the-structure andcomposition-of-the-sun\/<\/a>) muestra que las regiones hasta unos 2.000 kil\u00f3metros del centro del Sol tienen alrededor de 10.000 grados Kelvin. De repente, en Corona la temperatura supera los 100.000 grados. <strong>\u00bfC\u00f3mo se calienta la corona solar hasta estas enormes temperaturas?<\/strong> El calentamiento de la corona sigue siendo hoy (2023) un enigma para la astrof\u00edsica y la f\u00edsica solar.<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" src=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/Temperature-height_graph_for_solar_atmosphere.jpg\" alt=\"\" class=\"wp-image-7507\"\/><figcaption class=\"wp-element-caption\"><em>The approximate temperature in the solar atmosphere plotted against the height<\/em><\/figcaption><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<p>La temperatura del Sol (Temperatura (K)) a varias distancias de su centro (Altura en la Atm\u00f3sfera Solar (km)). Por ejemplo, leemos en el gr\u00e1fico que a una distancia de unos 2.000 km del centro del Sol su temperatura es un poco menos de 10.000 K.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>Para responder a la pregunta de c\u00f3mo se calienta la corona solar, en 2018 la NASA lanz\u00f3 el sat\u00e9lite Parker, que se acercar\u00e1 mucho al Sol. Alcanzar\u00e1 unos 10 radios solares (R <sub>sun<\/sub>\u2248 700.000 km) desde su centro. Ninguna otra misi\u00f3n al Sol ha estado tan cerca. Su prop\u00f3sito es observar la corona exterior del Sol. Est\u00e1 dise\u00f1ado para soportar temperaturas de 1.370 \u00b0C (Wikipedia).<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image size-full is-resized is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"634\" height=\"357\" src=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/5396854-6717393-NASA_s_Parker_Solar_Probe_artist_s_impression_is_on_a_mission_to-a-44_1550501366958.jpeg\" alt=\"\" class=\"wp-image-7511\" style=\"width:842px;height:auto\" srcset=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/5396854-6717393-NASA_s_Parker_Solar_Probe_artist_s_impression_is_on_a_mission_to-a-44_1550501366958.jpeg 634w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/5396854-6717393-NASA_s_Parker_Solar_Probe_artist_s_impression_is_on_a_mission_to-a-44_1550501366958-300x169.jpeg 300w\" sizes=\"auto, (max-width: 634px) 100vw, 634px\" \/><figcaption class=\"wp-element-caption\">La sonda solar Parker de la NASA (impresi\u00f3n art\u00edstica) tiene la misi\u00f3n de &#8220;tocar el sol&#8221;. China espera aprovechar el poder del sol poniendo en \u00f3rbita una central el\u00e9ctrica y transmitiendo la energ\u00eda de regreso a la Tierra.<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n<p>Parker ser\u00e1 el objeto m\u00e1s r\u00e1pido creado por el hombre: en 2024 se acercar\u00e1 mucho al centro del Sol y orbitar\u00e1 a una velocidad de 700.000 kil\u00f3metros por hora. \u00a1A esta velocidad podr\u00edas ir de Nueva York a Tokio en menos de un minuto! <\/p>\n\n\n\n<p>Desafortunadamente, Parker no vivir\u00e1 m\u00e1s all\u00e1 de 2025. En total s\u00f3lo tendr\u00e1 7 a\u00f1os de vida y creemos que aprenderemos mucho sobre el problema del calentamiento de la corona. <\/p>\n\n\n\n<p class=\"has-text-align-left\">Un art\u00edculo y un v\u00eddeo muy bonito e informativo, pero lamentablemente en ingl\u00e9s, es el siguiente: <a href=\"https:\/\/www.nasa.gov\/science-research\/heliophysics\/nasas-parker-solar%20probe-and-the-curious-case-of-the-hot-corona\/\">https:\/\/www.nasa.gov\/science-research\/heliophysics\/nasas-parker-solar%20probe-and-the-curious-case-of-the-hot-corona\/<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"225\" height=\"225\" src=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/parkersolarprobe.jpeg\" alt=\"\" class=\"wp-image-7515\" srcset=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/parkersolarprobe.jpeg 225w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/parkersolarprobe-150x150.jpeg 150w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2023\/12\/parkersolarprobe-200x200.jpeg 200w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/figure>\n\n\n\n<p>Y al final de su vida, \u00bfc\u00f3mo morir\u00e1?<\/p>\n\n\n\n<p><sup>*<\/sup>&nbsp;273 \u03b2\u03b1\u03b8\u03bc\u03bf\u03af \u039a\u03ad\u03bb\u03b2\u03b9\u03bd = -0.15 \u02daC<\/p>\n","protected":false},"excerpt":{"rendered":"<p class=\"card-text\">La corona solar (corona) es la atm\u00f3sfera exterior del Sol y de todas las estrellas. Se extiende hasta millones de kil\u00f3metros sobre la superficie del Sol. [&#8230;]<\/p>\n<p class=\"m-0\"><a class=\"btn btn-outline-secondary btn-read-more\" href=\"https:\/\/www.uni-mag.gr\/es\/solar-corona\/\">Read More<\/a><\/p>\n","protected":false},"author":3,"featured_media":7523,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"[]"},"categories":[769,1107],"tags":[1129,854,1178,1175,1172,1169,1162],"class_list":["post-7687","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-issues-es","category-issue-06-es","tag-corona-es","tag-nasa-es","tag-parkersolarprobe-es","tag-royalcrown-es","tag-solarcorona-es","tag-solareclipse-es","tag-suncorona-es"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>CORONA | UNI-MAG<\/title>\n<meta name=\"description\" content=\"La corona solar (corona) es la atm\u00f3sfera exterior del Sol y de todas las estrellas. 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