{"id":424045,"date":"2026-08-01T12:40:00","date_gmt":"2026-08-01T10:40:00","guid":{"rendered":"https:\/\/cms-articles.softonic.io\/es\/cd-35-2722-b-la-senal-mas-solida-hasta-ahora-de-una-exoluna-gigante\/"},"modified":"2026-08-01T12:39:24","modified_gmt":"2026-08-01T10:39:24","slug":"cd-35-2722-b-la-senal-mas-solida-hasta-ahora-de-una-exoluna-gigante","status":"publish","type":"post","link":"https:\/\/cms-articles.softonic.io\/es\/cd-35-2722-b-la-senal-mas-solida-hasta-ahora-de-una-exoluna-gigante\/","title":{"rendered":"CD-35 2722 B: la se\u00f1al m\u00e1s s\u00f3lida hasta ahora de una exoluna gigante"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Tras <strong>23 noches<\/strong> de observaci\u00f3n repartidas entre octubre de 2023 y febrero de 2026, un grupo de investigadores ha identificado una se\u00f1al que encaja con la presencia de una gran exoluna alrededor de la enana marr\u00f3n CD-35 2722 B, en un sistema situado a unos 73 a\u00f1os luz de la Tierra. La se\u00f1al a\u00fan necesita una confirmaci\u00f3n independiente, pero, si esa lectura se sostiene, estar\u00edamos ante <a href=\"https:\/\/www.softonic.com\/articulos\/descubren-un-planeta-del-tamano-de-la-tierra-orbitando-una-enana-roja-ultrafria\" rel=\"noopener\">una de las pruebas m\u00e1s n\u00edtidas<\/a> de una luna extrasolar en un campo donde varios candidatos muy conocidos siguen sin cerrar el debate.<\/p>\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/z9j_oUFddIY\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ese candidato tendr\u00eda, de acuerdo con el trabajo, una masa m\u00ednima de <strong>al menos 0,9<\/strong> masas de J\u00fapiter y tardar\u00eda unos 170 d\u00edas en completar una vuelta alrededor de CD-35 2722 B. Para hacerse una idea, ser\u00eda un \u201csat\u00e9lite\u201d descomunal comparado con lo que vemos en el sistema solar, con una masa equivalente a cerca del 2,5 % de la de su anfitri\u00f3n, siempre bajo esa interpretaci\u00f3n.<\/p>\n<div class=\"sc-card-program\">\r\n  <div class=\"sc-card-program__body\">\r\n    <div class=\"sc-card-program__row clearfix\">\r\n      <div class=\"sc-card-program__col-logo\">\r\n        <img decoding=\"async\" class=\"sc-card-program__img\" src=\"https:\/\/images.sftcdn.net\/images\/t_app-icon-s\/p\/fda580f8-9524-11e6-97ef-00163ec9f5fa\/1867192541\/stellarium-icon.jpg\" alt=\"Stellarium\" width=\"100px\" height=\"100px\">\r\n      <\/div>\r\n      <div class=\"sc-card-program__col-title\">\r\n        <span class=\"sc-card-program__title\">Stellarium<\/span>\r\n        <a class=\"sc-card-program__button sc-card-program-internal\" href=\"https:\/\/stellarium.softonic.com\/\" target=\"_self\" rel=\"noopener noreferrer\">Descargar<\/a>\r\n      <\/div>\r\n      <div class=\"sc-card-program__col-rating\">\r\n        <svg class=\"rating-score__content\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" version=\"1.1\" x=\"0\" y=\"0\" viewbox=\"0 0 50 50\" enable-background=\"new 0 0 50 50\" xml:space=\"preserve\"><path class=\"rating-score__background rating-score--good\" fill=\"none\" stroke-width=\"6\" stroke-miterlimit=\"10\" d=\"M40 40c8.3-8.3 8.3-21.7 0-30s-21.7-8.3-30 0 -8.3 21.7 0 30\"><\/path><path class=\"rating-score__value rating-score__value--0\" fill=\"none\" stroke-width=\"6\" stroke-dashoffset=\"0\" stroke-miterlimit=\"10\" d=\"M40 40c8.3-8.3 8.3-21.7 0-30s-21.7-8.3-30 0 -8.3 21.7 0 30\"><\/path><text class=\"rating-score__number\" content=\"\" text-anchor=\"middle\" transform=\"matrix(1 0 0 1 25 31.0837)\" data-auto=\"app-user-score\"><\/text><\/svg>\r\n      <\/div>\r\n    <\/div>\r\n    <div class=\"sc-card-program__row\">\r\n      <span class=\"sc-card-program__description\"><\/span>\r\n    <\/div>\r\n    <div class=\"sc-card-program__row\">\r\n      <img decoding=\"async\" class=\"sc-card-program__bigpic\" src=\"\" onerror=\"this.style.display='none'\">\r\n    <\/div>\r\n    <a class=\"sc-card-program__link track-link sc-card-program-internal\" href=\"https:\/\/stellarium.softonic.com\/\" target=\"_self\" rel=\"noopener noreferrer\"><\/a>\r\n  <\/div>\r\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Y ah\u00ed aparece otra cuesti\u00f3n interesante: c\u00f3mo llamarlo. Luna, subplaneta o alguna categor\u00eda intermedia. No est\u00e1 orbitando un planeta convencional ni una estrella al uso, sino una enana marr\u00f3n, ese tipo de objeto que queda a medio camino entre un gigante gaseoso y una estrella fallida.<\/p>\n\n<p class=\"wp-block-paragraph\">La novedad m\u00e1s fuerte del estudio no est\u00e1 solo en el posible hallazgo, sino en c\u00f3mo se busc\u00f3. El equipo no recurri\u00f3 al m\u00e9todo de los tr\u00e1nsitos. Opt\u00f3 por la <strong>velocidad radial<\/strong>, tambi\u00e9n llamada m\u00e9todo Doppler, y lo hizo con el espectr\u00f3grafo infrarrojo CRIRES+ del Very Large Telescope del Observatorio Europeo Austral.<\/p>\n\n<p class=\"wp-block-paragraph\">Durante esas 23 noches, los investigadores midieron un peque\u00f1o bamboleo en la enana marr\u00f3n CD-35 2722 B, provocado por la <strong>gravedad del posible<\/strong> sat\u00e9lite. Eso es, en esencia, lo que delata su presencia.<\/p>\n\n<p class=\"wp-block-paragraph\">El sistema ten\u00eda adem\u00e1s una ventaja poco habitual. CD-35 2722 B est\u00e1 lo bastante separada de su estrella anfitriona, CD-35 2722, como para obtener su espectro de manera directa y con muy poca contaminaci\u00f3n de la luz estelar.<\/p>\n<div class=\"sc-card-program\">\r\n  <div class=\"sc-card-program__body\">\r\n    <div class=\"sc-card-program__row clearfix\">\r\n      <div class=\"sc-card-program__col-logo\">\r\n        <img decoding=\"async\" class=\"sc-card-program__img\" src=\"https:\/\/images.sftcdn.net\/images\/t_app-icon-s\/p\/fd7b7b6e-9524-11e6-a779-00163ec9f5fa\/1648969637\/celestia-icon.png\" alt=\"Celestia\" width=\"100px\" height=\"100px\">\r\n      <\/div>\r\n      <div class=\"sc-card-program__col-title\">\r\n        <span class=\"sc-card-program__title\">Celestia<\/span>\r\n        <a class=\"sc-card-program__button sc-card-program-internal\" href=\"https:\/\/celestia.softonic.com\/\" target=\"_self\" rel=\"noopener noreferrer\">Descargar<\/a>\r\n      <\/div>\r\n      <div class=\"sc-card-program__col-rating\">\r\n        <svg class=\"rating-score__content\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" version=\"1.1\" x=\"0\" y=\"0\" viewbox=\"0 0 50 50\" enable-background=\"new 0 0 50 50\" xml:space=\"preserve\"><path class=\"rating-score__background rating-score--good\" fill=\"none\" stroke-width=\"6\" stroke-miterlimit=\"10\" d=\"M40 40c8.3-8.3 8.3-21.7 0-30s-21.7-8.3-30 0 -8.3 21.7 0 30\"><\/path><path class=\"rating-score__value rating-score__value--0\" fill=\"none\" stroke-width=\"6\" stroke-dashoffset=\"0\" stroke-miterlimit=\"10\" d=\"M40 40c8.3-8.3 8.3-21.7 0-30s-21.7-8.3-30 0 -8.3 21.7 0 30\"><\/path><text class=\"rating-score__number\" content=\"\" text-anchor=\"middle\" transform=\"matrix(1 0 0 1 25 31.0837)\" data-auto=\"app-user-score\"><\/text><\/svg>\r\n      <\/div>\r\n    <\/div>\r\n    <div class=\"sc-card-program__row\">\r\n      <span class=\"sc-card-program__description\"><\/span>\r\n    <\/div>\r\n    <div class=\"sc-card-program__row\">\r\n      <img decoding=\"async\" class=\"sc-card-program__bigpic\" src=\"\" onerror=\"this.style.display='none'\">\r\n    <\/div>\r\n    <a class=\"sc-card-program__link track-link sc-card-program-internal\" href=\"https:\/\/celestia.softonic.com\/\" target=\"_self\" rel=\"noopener noreferrer\"><\/a>\r\n  <\/div>\r\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La separaci\u00f3n aparente es de <strong>unos 2,8 segundos<\/strong> de arco y, seg\u00fan lo publicado, esa circunstancia, sumada a una resoluci\u00f3n espectral m\u00e1s alta, permiti\u00f3 alcanzar mediciones hasta 100 veces m\u00e1s precisas que las logradas en intentos comparables anteriores.<\/p>\n\n<p class=\"wp-block-paragraph\">La estrella principal tendr\u00eda cerca del <strong>40 % de la<\/strong> masa del Sol, mientras que la enana marr\u00f3n CD-35 2722 B estar\u00eda entre unas 33 y 37 masas de J\u00fapiter. Antes de decantarse por la hip\u00f3tesis de una exoluna, el equipo puso a prueba otras explicaciones: fallos al corregir el movimiento orbital de la Tierra, efectos atmosf\u00e9ricos estacionales e incluso la propia rotaci\u00f3n de la enana marr\u00f3n.<\/p>\n\n<p class=\"wp-block-paragraph\">Tambi\u00e9n examin\u00f3 si una \u00f3rbita de ese tipo podr\u00eda sostenerse f\u00edsicamente, y los c\u00e1lculos del l\u00edmite de Roche y del radio de Hill se\u00f1alan una regi\u00f3n estable. Como suele pasar en la b\u00fasqueda de exolunas, nadie sabe cu\u00e1ndo llegar\u00e1 una <strong><a href=\"https:\/\/www.softonic.com\/articulos\/el-telescopio-james-webb-ha-descubierto-algo-que-jamas-habiamos-visto-antes\" rel=\"noopener\">confirmaci\u00f3n definitiva<\/a><\/strong>. Entre una se\u00f1al prometedora y su validaci\u00f3n final pueden pasar a\u00f1os, y hoy por hoy sigue siendo muy dif\u00edcil ponerle fecha.<\/p>","protected":false},"excerpt":{"rendered":"<p>Tras 23 noches de observaci\u00f3n repartidas entre octubre de 2023 y febrero de 2026, un grupo de investigadores ha identificado una se\u00f1al que encaja con la presencia de una gran exoluna alrededor de la enana marr\u00f3n CD-35 2722 B, en un sistema situado a unos 73 a\u00f1os luz de la Tierra. La se\u00f1al a\u00fan necesita &hellip; <a href=\"https:\/\/cms-articles.softonic.io\/es\/cd-35-2722-b-la-senal-mas-solida-hasta-ahora-de-una-exoluna-gigante\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;CD-35 2722 B: la se\u00f1al m\u00e1s s\u00f3lida hasta ahora de una exoluna gigante&#8221;<\/span><\/a><\/p>\n","protected":false},"author":9265,"featured_media":424044,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","wpcf-pageviews":0},"categories":[9317],"tags":[],"usertag":[],"vertical":[],"content-category":[],"class_list":["post-424045","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"Tras 23 noches de observaci\u00f3n repartidas entre octubre de 2023 y febrero de 2026, un grupo de investigadores ha identificado una se\u00f1al que encaja con la presencia de una gran exoluna alrededor de la enana marr\u00f3n CD-35 2722 B, en un sistema situado a unos 73 a\u00f1os luz de la Tierra. 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