{"id":180657,"date":"2026-05-05T20:07:56","date_gmt":"2026-05-05T20:07:56","guid":{"rendered":"http:\/\/69fa1ca9753d94039d590e80"},"modified":"2026-05-05T20:07:56","modified_gmt":"2026-05-05T20:07:56","slug":"encuentran-un-objeto-imposible-en-los-confines-del-sistema-solar-un-cuerpo-congelado-compacto-y-con-atmosfera-propia","status":"publish","type":"post","link":"https:\/\/sarmiento24h.com\/?p=180657","title":{"rendered":"Encuentran un objeto imposible en los confines del sistema solar: un cuerpo congelado compacto y con atm\u00f3sfera propia"},"content":{"rendered":"<p>El siguiente misterio c\u00f3smico no est\u00e1 a a\u00f1os luz de distancia, al otro lado de la galaxia, sino en nuestro propio sistema solar. Un equipo de cient\u00edficos japoneses detect\u00f3 indicios de atm\u00f3sfera en un objeto de unos 500 kil\u00f3metros de di\u00e1metro, a una distancia casi tan lejana como Plut\u00f3n. Hasta ahora, los modelos consideraban imposible que un cuerpo tan peque\u00f1o y fr\u00edo retuviera gases sobre su superficie.<\/p>\n<p>El protagonista es (612533) 2002 XV<sub>93<\/sub>, un objeto transneptuniano (TNO, por su nombre en ingl\u00e9s). Esta categor\u00eda agrupa a cuerpos helados que orbitan m\u00e1s all\u00e1 de Neptuno y cuyos tama\u00f1os var\u00edan entre los 100 y los 2,300 km. Plut\u00f3n, clasificado como planeta enano (aunque <a href=\"https:\/\/es.wired.com\/articulos\/trump-quiere-que-pluton-vuelva-a-ser-el-noveno-planeta-del-sistema-solar\">Trump tenga otra idea<\/a>), tambi\u00e9n forma parte de este grupo, junto a otros 6,000 objetos, aproximadamente.<\/p>\n<figure class=\"AssetEmbedWrapper-iJvQnD cOWUYC asset-embed\">\n<div class=\"AssetEmbedAssetContainer-fnduJP iaVSwI asset-embed__asset-container\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset AssetEmbedResponsiveAsset-gaAbQ hXaxHA asset-embed__responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj AssetEmbedResponsiveAsset-gaAbQ hXaxHA asset-embed__responsive-asset responsive-image\"><img decoding=\"async\" alt=\"TNO\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/69fa33ca56d17330526cd5d5\/master\/w_120,c_limit\/2550x3300.jpg 120w, https:\/\/media.es.wired.com\/photos\/69fa33ca56d17330526cd5d5\/master\/w_240,c_limit\/2550x3300.jpg 240w, https:\/\/media.es.wired.com\/photos\/69fa33ca56d17330526cd5d5\/master\/w_320,c_limit\/2550x3300.jpg 320w, https:\/\/media.es.wired.com\/photos\/69fa33ca56d17330526cd5d5\/master\/w_640,c_limit\/2550x3300.jpg 640w, https:\/\/media.es.wired.com\/photos\/69fa33ca56d17330526cd5d5\/master\/w_960,c_limit\/2550x3300.jpg 960w, https:\/\/media.es.wired.com\/photos\/69fa33ca56d17330526cd5d5\/master\/w_1280,c_limit\/2550x3300.jpg 1280w, https:\/\/media.es.wired.com\/photos\/69fa33ca56d17330526cd5d5\/master\/w_1600,c_limit\/2550x3300.jpg 1600w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/69fa33ca56d17330526cd5d5\/master\/w_1600%2Cc_limit\/2550x3300.jpg\"><\/picture><\/span><\/div>\n<div class=\"CaptionWrapper-bpPcvW iDPSlt caption AssetEmbedCaption-eZIMNW gMgneI asset-embed__caption\" data-testid=\"caption-wrapper\" readability=\"6\"><span class=\"BaseText-fEwdHD CaptionText-cQpRdU kRTNAB hbiMYj caption__text\" readability=\"27\"><\/p>\n<p>Representaci\u00f3n de un cl\u00e1sico objeto transneptuniano.<\/p>\n<p><\/span><span class=\"BaseText-fEwdHD CaptionCredit-cUgOGk iQbGEh hRFzlA caption__credit\">NASA, ESA, G. Bacon (STScl)<\/span><\/div>\n<\/figure>\n<p>Durante dos d\u00e9cadas, 2002 XV<sub>93<\/sub> orbit\u00f3 como uno m\u00e1s entre los miles de fragmentos helados del <a href=\"https:\/\/es.wired.com\/articulos\/estamos-a-punto-de-descubrir-los-secretos-del-cinturon-de-kuiper\">cintur\u00f3n de Kuiper<\/a>. Pero en 2024, el objeto pas\u00f3 frente a una estrella lejana en una ocultaci\u00f3n estelar, como si se tratara de un eclipse. Cuando los cient\u00edficos analizaron las curvas de luz, notaron que el brillo del astro no desapareci\u00f3 de golpe sino que se atenu\u00f3 de forma progresiva, como si el borde del objeto no fuera completamente s\u00f3lido.<\/p>\n<hr>\n<div class=\"ContentCardEmbedWrapper-hkvhYu kMYDit content-card-embed content-card-embed--stacked\" data-testid=\"ContentCardEmbedWrapper\" readability=\"22.403846153846\">\n<div class=\"ContentCardEmbedImage-bqahne fjmzkP content-card-embed__image\" data-testid=\"ContentCardEmbedImage\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj responsive-image\"><img decoding=\"async\" alt=\"Representaci\u00f3n art\u00edstica del sistema planetario alrededor de la estrella LHS 1903.\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/698f5e7fff93dbfeec0b0d45\/master\/w_120,c_limit\/Figura%201.png 120w, https:\/\/media.es.wired.com\/photos\/698f5e7fff93dbfeec0b0d45\/master\/w_240,c_limit\/Figura%201.png 240w, https:\/\/media.es.wired.com\/photos\/698f5e7fff93dbfeec0b0d45\/master\/w_320,c_limit\/Figura%201.png 320w, https:\/\/media.es.wired.com\/photos\/698f5e7fff93dbfeec0b0d45\/master\/w_640,c_limit\/Figura%201.png 640w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/698f5e7fff93dbfeec0b0d45\/master\/w_775%2Cc_limit\/Figura%25201.png\"><\/picture><\/span><\/div>\n<div class=\"ContentCardEmbedInfo-buyHWH gWLOee\" readability=\"24.127218934911\">\n<div class=\"BaseText-fEwdHD ContentCardEmbedHed-kDKGDs fUtEc dlHXUJ content-card-embed__hed\" data-testid=\"ContentCardEmbedHed\"><a class=\"BaseLink-haTOKm ContentCardEmbedHedLink-iBZsco gAoKdC hhUFQU content-card-embed__hed-link link\" href=\"https:\/\/es.wired.com\/articulos\/un-sistema-solar-desafia-la-fisica-sus-planetas-gaseosos-orbitan-mas-cerca-del-centro-que-los-rocosos\" data-testid=\"ContentCardEmbedHedLink\">Un sistema solar desaf\u00eda la f\u00edsica: sus planetas gaseosos orbitan m\u00e1s cerca del centro que los rocosos<\/a><\/div>\n<p>Un equipo de astr\u00f3nomos descubri\u00f3 un sistema planetario inusual alrededor de la enana roja LHS\u202f1903, situada a unos 116 a\u00f1os luz de la Tierra. El descubrimiento pone en duda nuestra comprensi\u00f3n de la formaci\u00f3n de los planetas.<\/p>\n<\/div>\n<\/div>\n<hr>\n<p>Solo los cuerpos con atm\u00f3sferas pueden curvar la luz de esa manera. La refracci\u00f3n suaviza la ca\u00edda de brillo y deja una firma muy caracter\u00edstica en la curva de luz. Sin embargo, <a href=\"https:\/\/es.wired.com\/articulos\/pluton-no-es-el-unico-planeta-enano-con-presencia-de-gases-en-el-sistema-solar-exterior\">no cualquier mundo puede sostener una atm\u00f3sfera<\/a>. Para lograrlo, necesita cumplir tres condiciones f\u00edsicas: suficiente gravedad para retener gases, una temperatura que evite que escapen y una fuente continua de vol\u00e1tiles.<\/p>\n<p>Por una coincidencia geom\u00e9trica, 2002 XV<sub>93<\/sub> revel\u00f3 esa firma atmosf\u00e9rica. Tres telescopios confirmaron el mismo patr\u00f3n de refracci\u00f3n. Seg\u00fan el estudio publicado esta semana en <a href=\"https:\/\/www.nature.com\/articles\/s41550-026-02846-1\"><em>Nature Astronomy<\/em><\/a>, la capa de gas es extremadamente tenue, con una presi\u00f3n superficial entre 100 y 200 nanobares. Para comparar, la atm\u00f3sfera terrestre es entre cinco y diez millones de veces m\u00e1s densa.<\/p>\n<p>Los investigadores solo pueden esbozar hip\u00f3tesis sobre el origen de esta envoltura gaseosa. Si el objeto no cuenta con un mecanismo que reponga los vol\u00e1tiles, la atm\u00f3sfera podr\u00eda disiparse en unos mil a\u00f1os. Las posibilidades m\u00e1s plausibles apuntan al criovulcanismo, lo que implicar\u00eda actividad interna en un cuerpo diminuto, o a la liberaci\u00f3n de gases tras el impacto reciente de un cometa u otro fragmento helado.<\/p>\n<p>El caso de 2002 XV<sub>93<\/sub> obliga a revisar lo que cre\u00edamos sobre la capacidad de los planetas enanos y los cuerpos helados del cintur\u00f3n de Kuiper para retener atm\u00f3sferas. M\u00e1s all\u00e1 de Neptuno, en los confines de Plut\u00f3n, hay cuerpos envueltos en gases, que no coinciden con las bases de datos actuales.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>El siguiente misterio c\u00f3smico no est\u00e1 a&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":180658,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[46],"tags":[],"class_list":["post-180657","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Encuentran un objeto imposible en los confines del sistema solar: un cuerpo congelado compacto y con atm\u00f3sfera propia - 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