{"id":4878,"date":"2026-10-21T21:58:37","date_gmt":"2026-10-22T01:58:37","guid":{"rendered":"https:\/\/canasanta.ca\/?p=4878"},"modified":"2026-10-21T22:54:00","modified_gmt":"2026-10-22T02:54:00","slug":"anillos-chariklo-cambian-james-webb","status":"publish","type":"post","link":"https:\/\/canasanta.ca\/en\/ciencia\/cosmos\/anillos-chariklo-cambian-james-webb\/","title":{"rendered":"LOS ANILLOS DE CHARIKLO EST\u00c1N CAMBIANDO ANTE NUESTROS OJOS"},"content":{"rendered":"

El peque\u00f1o Chariklo, un cuerpo helado que orbita entre Saturno y Urano, acaba de desmontar una idea que los astr\u00f3nomos daban casi por sentada: sus anillos no son estructuras inm\u00f3viles. Est\u00e1n cambiando, y cada uno lo hace en una direcci\u00f3n diferente.<\/strong><\/p>\n

Dos anillos que evolucionan al rev\u00e9s<\/strong><\/h3>\n

Un equipo internacional liderado por el Instituto de Astrof\u00edsica de Andaluc\u00eda (IAA-CSIC) compar\u00f3 observaciones del telescopio espacial James Webb con ocultaciones estelares registradas durante la \u00faltima d\u00e9cada. El resultado fue inesperado: el anillo interior de Chariklo se ha vuelto significativamente m\u00e1s opaco, mientras que el exterior presenta una opacidad menor.<\/p>\n

Chariklo tiene apenas unos 250 kil\u00f3metros de di\u00e1metro y se encuentra a casi 17 veces la distancia que separa la Tierra del Sol. Sus dos anillos fueron descubiertos en 2013, convirti\u00e9ndolo en el primer peque\u00f1o cuerpo del Sistema Solar conocido con un sistema de anillos.<\/p>\n

Webb vio lo que una fotograf\u00eda no puede mostrar<\/strong><\/h3>\n

Los anillos son demasiado estrechos y est\u00e1n demasiado lejos para fotografiarlos directamente, incluso con el James Webb. Los cient\u00edficos recurrieron entonces a una ocultaci\u00f3n estelar: observaron c\u00f3mo disminu\u00eda durante instantes la luz de una estrella cuando los anillos pasaban frente a ella.<\/p>\n

La observaci\u00f3n realizada el 18 de octubre de 2022 fue adem\u00e1s la primera ocultaci\u00f3n estelar espec\u00edficamente predicha y planificada para el Webb que pudo ejecutarse con \u00e9xito. En aquel momento Chariklo se desplazaba respecto al telescopio a solo 2,5 kil\u00f3metros por segundo, una circunstancia que proporcion\u00f3 una resoluci\u00f3n espacial excepcional.<\/p>\n

Un sistema mucho menos tranquilo de lo esperado<\/strong><\/h3>\n

Hasta ahora se consideraba que los anillos alrededor de peque\u00f1os cuerpos eran relativamente estables. Las variaciones detectadas indican que el sistema de Chariklo puede estar sometido a procesos f\u00edsicos bastante m\u00e1s complejos. Los investigadores todav\u00eda no conocen la causa definitiva: podr\u00eda tratarse de una evoluci\u00f3n real de los anillos, de diferencias asociadas a los filtros utilizados en distintas observaciones o de una combinaci\u00f3n de ambos factores.<\/p>\n

Observaciones anteriores del Webb tambi\u00e9n hab\u00edan detectado hielo de agua cristalino en Chariklo y sus anillos, una se\u00f1al compatible con microcolisiones capaces de exponer material fresco.<\/p>\n

Una peque\u00f1a ventana hacia grandes preguntas<\/strong><\/h3>\n

El hallazgo obliga a reconsiderar c\u00f3mo se forman, evolucionan y mantienen estables los sistemas de anillos alrededor de cuerpos menores. Chariklo, diminuto frente a los gigantes gaseosos, se est\u00e1 convirtiendo as\u00ed en un laboratorio natural para comprender procesos que tambi\u00e9n pueden actuar en otros rincones del Sistema Solar.<\/p>\n

Y mientras el James Webb contin\u00faa mirando hacia las galaxias m\u00e1s remotas, una de sus observaciones m\u00e1s reveladoras ha surgido mucho m\u00e1s cerca: en dos fin\u00edsimos anillos que est\u00e1n cambiando ante nuestros ojos.<\/p>","protected":false},"excerpt":{"rendered":"

El James Webb revela que los dos anillos de Chariklo est\u00e1n evolucionando en sentidos opuestos, un comportamiento inesperado que obliga a revisar c\u00f3mo entendemos estos peque\u00f1os sistemas de anillos.<\/p>","protected":false},"author":284226809,"featured_media":4879,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_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},"jetpack_post_was_ever_published":false},"categories":[33205457,33205423],"tags":[33207389,33207388,33205982,33205668],"class_list":["post-4878","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-al-dia","category-cosmos","tag-anillos-planetarios","tag-chariklo","tag-james-webb","tag-sistema-solar"],"acf":{"introduccion":"","fuentes_y_referencias":"

Instituto de Astrof\u00edsica de Andaluc\u00eda (IAA-CSIC)<\/strong> \u2014 \u201cEl telescopio espacial James Webb descubre que los invisibles anillos de Chariklo est\u00e1n cambiando\u201d, 9 de septiembre de 2026.<\/p>

Science Advances<\/strong> \u2014 \u201cJWST stellar occultation reveals unexpected changes in Chariklo\u2019s ring system\u201d.<\/p>

NASA \/ ESA \/ CSA<\/strong> \u2014 observaciones del sistema de Chariklo con el telescopio espacial James Webb.<\/p>","autor":[748]},"yoast_head":"\nLOS ANILLOS DE CHARIKLO EST\u00c1N CAMBIANDO ANTE NUESTROS OJOS - Ca\u00f1asanta<\/title>\n<meta name=\"description\" content=\"El James Webb revela que los dos anillos de Chariklo est\u00e1n cambiando en sentidos opuestos, un hallazgo que desaf\u00eda lo que sab\u00edamos sobre estos sistemas.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/canasanta.ca\/en\/science\/cosmos\/anillos-chariklo-cambian-james-webb\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LOS ANILLOS DE CHARIKLO EST\u00c1N CAMBIANDO ANTE NUESTROS OJOS\" \/>\n<meta property=\"og:description\" content=\"El James Webb revela que los dos anillos de Chariklo est\u00e1n cambiando en sentidos opuestos, un hallazgo que desaf\u00eda lo que sab\u00edamos sobre estos sistemas.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/canasanta.ca\/en\/science\/cosmos\/anillos-chariklo-cambian-james-webb\/\" \/>\n<meta property=\"og:site_name\" content=\"Ca\u00f1asanta\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-22T01:58:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-22T02:54:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/10\/Chariklo-y-sus-anillos-%E2%80%94-imagen-editorial.jpg?resize=1200,630&quality=85&strip=all&ssl=1\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Ca\u00f1asanta\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Ca\u00f1asanta\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/canasanta.ca\\\/ciencia\\\/cosmos\\\/anillos-chariklo-cambian-james-webb\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/canasanta.ca\\\/ciencia\\\/cosmos\\\/anillos-chariklo-cambian-james-webb\\\/\"},\"author\":{\"name\":\"Ca\u00f1asanta\",\"@id\":\"https:\\\/\\\/canasanta.ca\\\/#\\\/schema\\\/person\\\/21421a3c6f1733be6c5c590190fd8e93\"},\"headline\":\"LOS ANILLOS DE CHARIKLO EST\u00c1N CAMBIANDO ANTE NUESTROS OJOS\",\"datePublished\":\"2026-10-22T01:58:37+00:00\",\"dateModified\":\"2026-10-22T02:54:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/canasanta.ca\\\/ciencia\\\/cosmos\\\/anillos-chariklo-cambian-james-webb\\\/\"},\"wordCount\":479,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/canasanta.ca\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/canasanta.ca\\\/ciencia\\\/cosmos\\\/anillos-chariklo-cambian-james-webb\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/i0.wp.com\\\/canasanta.ca\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/Chariklo-y-sus-anillos-%E2%80%94-imagen-editorial.jpg?fit=1080%2C718&quality=82&strip=all&ssl=1\",\"keywords\":[\"anillos planetarios\",\"Chariklo\",\"James Webb\",\"Sistema Solar\"],\"articleSection\":[\"AL D\u00cdA!\",\"Cosmos\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/canasanta.ca\\\/ciencia\\\/cosmos\\\/anillos-chariklo-cambian-james-webb\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/canasanta.ca\\\/ciencia\\\/cosmos\\\/anillos-chariklo-cambian-james-webb\\\/\",\"url\":\"https:\\\/\\\/canasanta.ca\\\/ciencia\\\/cosmos\\\/anillos-chariklo-cambian-james-webb\\\/\",\"name\":\"LOS ANILLOS DE CHARIKLO EST\u00c1N CAMBIANDO ANTE NUESTROS OJOS - 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El fen\u00f3meno, identificado como AT 2026abck, ocurri\u00f3 a m\u00e1s de 12.500 millones\u2026","rel":"","context":"In "AL D\u00cdA!"","block_context":{"text":"AL D\u00cdA!","link":"https:\/\/canasanta.ca\/en\/category\/al-dia\/"},"img":{"alt_text":"Regi\u00f3n del espacio profundo utilizada para ilustrar la observaci\u00f3n de una supernova remota por el telescopio James Webb","src":"https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/10\/Supernova-en-el-universo-profundo.jpg?fit=1080%2C519&quality=82&strip=all&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/10\/Supernova-en-el-universo-profundo.jpg?fit=1080%2C519&quality=82&strip=all&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/10\/Supernova-en-el-universo-profundo.jpg?fit=1080%2C519&quality=82&strip=all&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/10\/Supernova-en-el-universo-profundo.jpg?fit=1080%2C519&quality=82&strip=all&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/10\/Supernova-en-el-universo-profundo.jpg?fit=1080%2C519&quality=82&strip=all&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1944,"url":"https:\/\/canasanta.ca\/en\/al-dia\/el-webb-descubre-choques-capaces-de-vaporizar-planetas\/","url_meta":{"origin":4878,"position":4},"title":"WEBB DISCOVERS COLLISIONS CAPABLE OF VAPORIZING PLANETS","author":"Ca\u00f1asanta","date":"October 1, 2026","format":false,"excerpt":"El nacimiento de un planeta puede ser mucho m\u00e1s violento de lo que imagin\u00e1bamos. 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Son impactos tan energ\u00e9ticos que pueden convertir enormes\u2026","rel":"","context":"In "AL D\u00cdA!"","block_context":{"text":"AL D\u00cdA!","link":"https:\/\/canasanta.ca\/en\/category\/al-dia\/"},"img":{"alt_text":"CS PLANETAS colision","src":"https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/10\/CS_PLANETAS_colision_001.jpg?fit=1200%2C800&quality=82&strip=all&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/10\/CS_PLANETAS_colision_001.jpg?fit=1200%2C800&quality=82&strip=all&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/10\/CS_PLANETAS_colision_001.jpg?fit=1200%2C800&quality=82&strip=all&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/10\/CS_PLANETAS_colision_001.jpg?fit=1200%2C800&quality=82&strip=all&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/10\/CS_PLANETAS_colision_001.jpg?fit=1200%2C800&quality=82&strip=all&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":7807,"url":"https:\/\/canasanta.ca\/en\/al-dia\/sombra-agujero-negro-m87-confirmada-analisis-independiente\/","url_meta":{"origin":4878,"position":5},"title":"LA SOMBRA DEL AGUJERO NEGRO RESISTE UNA NUEVA PRUEBA","author":"Ca\u00f1asanta","date":"November 11, 2026","format":false,"excerpt":"Un an\u00e1lisis independiente publicado en Nature confirma el anillo de M87* mediante inteligencia artificial y observables resistentes a errores de calibraci\u00f3n.","rel":"","context":"In "AL D\u00cdA!"","block_context":{"text":"AL D\u00cdA!","link":"https:\/\/canasanta.ca\/en\/category\/al-dia\/"},"img":{"alt_text":"Ilustraci\u00f3n art\u00edstica de un agujero negro rodeado de materia luminosa, no fotograf\u00eda de M87","src":"https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/11\/Ilustracion-de-agujero-negro-%E2%80%94-NASA-Hubble.jpg?fit=1200%2C630&quality=82&strip=all&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/11\/Ilustracion-de-agujero-negro-%E2%80%94-NASA-Hubble.jpg?fit=1200%2C630&quality=82&strip=all&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/11\/Ilustracion-de-agujero-negro-%E2%80%94-NASA-Hubble.jpg?fit=1200%2C630&quality=82&strip=all&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/11\/Ilustracion-de-agujero-negro-%E2%80%94-NASA-Hubble.jpg?fit=1200%2C630&quality=82&strip=all&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/11\/Ilustracion-de-agujero-negro-%E2%80%94-NASA-Hubble.jpg?fit=1200%2C630&quality=82&strip=all&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/10\/Chariklo-y-sus-anillos-%E2%80%94-imagen-editorial.jpg?fit=1080%2C718&quality=82&strip=all&ssl=1","_links":{"self":[{"href":"https:\/\/canasanta.ca\/en\/wp-json\/wp\/v2\/posts\/4878","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/canasanta.ca\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/canasanta.ca\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/canasanta.ca\/en\/wp-json\/wp\/v2\/users\/284226809"}],"replies":[{"embeddable":true,"href":"https:\/\/canasanta.ca\/en\/wp-json\/wp\/v2\/comments?post=4878"}],"version-history":[{"count":2,"href":"https:\/\/canasanta.ca\/en\/wp-json\/wp\/v2\/posts\/4878\/revisions"}],"predecessor-version":[{"id":4887,"href":"https:\/\/canasanta.ca\/en\/wp-json\/wp\/v2\/posts\/4878\/revisions\/4887"}],"acf:post":[{"embeddable":true,"href":"https:\/\/canasanta.ca\/en\/wp-json\/wp\/v2\/autor\/748"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/canasanta.ca\/en\/wp-json\/wp\/v2\/media\/4879"}],"wp:attachment":[{"href":"https:\/\/canasanta.ca\/en\/wp-json\/wp\/v2\/media?parent=4878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/canasanta.ca\/en\/wp-json\/wp\/v2\/categories?post=4878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/canasanta.ca\/en\/wp-json\/wp\/v2\/tags?post=4878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}