{"id":11375,"date":"2024-09-07T17:47:00","date_gmt":"2024-09-07T17:47:00","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=11375"},"modified":"2024-09-07T17:47:00","modified_gmt":"2024-09-07T17:47:00","slug":"pluto-planet-status-reassessment","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/astronomy-and-astrophysics\/pluto-planet-status-reassessment\/","title":{"rendered":"V\u1ecb th\u1ebf h\u00e0nh tinh c\u1ee7a Sao Di\u00eam V\u01b0\u01a1ng: \u0110\u00e1nh gi\u00e1 l\u1ea1i"},"content":{"rendered":"

V\u1ecb th\u1ebf h\u00e0nh tinh c\u1ee7a Sao Di\u00eam V\u01b0\u01a1ng: \u0110\u00e1nh gi\u00e1 l\u1ea1i<\/h2>\n\n

Ph\u00e1t hi\u1ec7n ra v\u1ec7 tinh th\u1ee9 n\u0103m l\u00e0m b\u00f9ng n\u1ed5 cu\u1ed9c tranh lu\u1eadn<\/h2>\n\n

Vi\u1ec7c ph\u00e1t hi\u1ec7n ra v\u1ec7 tinh th\u1ee9 n\u0103m quay quanh Sao Di\u00eam V\u01b0\u01a1ng \u0111\u00e3 l\u00e0m b\u00f9ng n\u1ed5 cu\u1ed9c tranh lu\u1eadn v\u1ec1 vi\u1ec7c li\u1ec7u thi\u00ean th\u1ec3 b\u0103ng gi\u00e1 n\u00e0y c\u00f3 n\u00ean \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u1ea1i th\u00e0nh h\u00e0nh tinh hay kh\u00f4ng. Sao Di\u00eam V\u01b0\u01a1ng \u0111\u00e3 b\u1ecb Li\u00ean \u0111o\u00e0n Thi\u00ean v\u0103n Qu\u1ed1c t\u1ebf (IAU) h\u1ea1 c\u1ea5p xu\u1ed1ng th\u00e0nh h\u00e0nh tinh l\u00f9n v\u00e0o n\u0103m 2006, nh\u01b0ng m\u1ed9t s\u1ed1 nh\u00e0 khoa h\u1ecdc tin r\u1eb1ng ph\u00e1t hi\u1ec7n m\u1edbi n\u00e0y \u0111\u1ee7 c\u01a1 s\u1edf \u0111\u1ec3 xem x\u00e9t l\u1ea1i.<\/p>\n\n

\u0110\u1ecbnh ngh\u0129a h\u00e0nh tinh c\u1ee7a IAU<\/h2>\n\n

Theo IAU, m\u1ed9t h\u00e0nh tinh ph\u1ea3i \u0111\u00e1p \u1ee9ng ba ti\u00eau ch\u00ed:<\/p>\n\n

    \n
  1. N\u00f3 ph\u1ea3i quay quanh M\u1eb7t tr\u1eddi.<\/li>\n
  2. N\u00f3 ph\u1ea3i c\u00f3 \u0111\u1ee7 kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng th\u1ee7y t\u0129nh (g\u1ea7n h\u00ecnh c\u1ea7u).<\/li>\n
  3. N\u00f3 ph\u1ea3i qu\u00e9t s\u1ea1ch qu\u1ef9 \u0111\u1ea1o c\u1ee7a m\u00ecnh kh\u1ecfi c\u00e1c v\u1eadt th\u1ec3 kh\u00e1c.<\/li>\n<\/ol>\n\n

    Sao Di\u00eam V\u01b0\u01a1ng \u0111\u00e1p \u1ee9ng hai ti\u00eau ch\u00ed \u0111\u1ea7u ti\u00ean, nh\u01b0ng kh\u00f4ng \u0111\u00e1p \u1ee9ng ti\u00eau ch\u00ed th\u1ee9 ba. Qu\u1ef9 \u0111\u1ea1o c\u1ee7a n\u00f3 giao nhau v\u1edbi qu\u1ef9 \u0111\u1ea1o c\u1ee7a Sao H\u1ea3i V\u01b0\u01a1ng v\u00e0 n\u00f3 \u0111\u00e3 kh\u00f4ng x\u00f3a s\u1ed5 \u0111\u01b0\u1eddng \u0111i c\u1ee7a m\u00ecnh kh\u1ecfi c\u00e1c v\u1eadt th\u1ec3 kh\u00e1c. \u0110i\u1ec1u n\u00e0y khi\u1ebfn IAU ph\u00e2n lo\u1ea1i Sao Di\u00eam V\u01b0\u01a1ng l\u00e0 h\u00e0nh tinh l\u00f9n, m\u1ed9t lo\u1ea1i v\u1eadt th\u1ec3 qu\u00e1 l\u1edbn \u0111\u1ec3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ti\u1ec3u h\u00e0nh tinh nh\u01b0ng kh\u00f4ng \u0111\u00e1p \u1ee9ng \u0111\u1ea7y \u0111\u1ee7 c\u00e1c ti\u00eau ch\u00ed d\u00e0nh cho h\u00e0nh tinh.<\/p>\n\n

    L\u1eadp lu\u1eadn \u0111\u1ec3 ph\u00e2n lo\u1ea1i l\u1ea1i<\/h2>\n\n

    M\u1ed9t s\u1ed1 nh\u00e0 khoa h\u1ecdc l\u1eadp lu\u1eadn r\u1eb1ng \u0111\u1ecbnh ngh\u0129a h\u00e0nh tinh c\u1ee7a IAU qu\u00e1 h\u1ea1n h\u1eb9p v\u00e0 Sao Di\u00eam V\u01b0\u01a1ng n\u00ean \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u1ea1i th\u00e0nh h\u00e0nh tinh v\u00ec n\u00f3 c\u00f3 n\u0103m v\u1ec7 tinh. V\u1ec7 tinh th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a tr\u1ea1ng th\u00e1i h\u00e0nh tinh, v\u00ec ch\u00fang ch\u1ec9 ra r\u1eb1ng v\u1eadt th\u1ec3 c\u00f3 \u0111\u1ee7 l\u1ef1c h\u1ea5p d\u1eabn \u0111\u1ec3 thu h\u00fat v\u00e0 gi\u1eef c\u00e1c thi\u00ean th\u1ec3 kh\u00e1c.<\/p>\n\n

    Tuy nhi\u00ean, IAU \u0111\u00e3 tuy\u00ean b\u1ed1 r\u1eb1ng s\u1ef1 c\u00f3 m\u1eb7t ho\u1eb7c kh\u00f4ng c\u00f3 v\u1ec7 tinh kh\u00f4ng ph\u1ea3i l\u00e0 y\u1ebfu t\u1ed1 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem m\u1ed9t v\u1eadt th\u1ec3 c\u00f3 ph\u1ea3i l\u00e0 h\u00e0nh tinh hay kh\u00f4ng. Tr\u1ecdng t\u00e2m l\u00e0 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m qu\u1ef9 \u0111\u1ea1o c\u1ee7a v\u1eadt th\u1ec3 v\u00e0 kh\u1ea3 n\u0103ng x\u00f3a s\u1ed5 qu\u1ef9 \u0111\u1ea1o c\u1ee7a n\u00f3.<\/p>\n\n

    \u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn Nhi\u1ec7m v\u1ee5 New Horizons<\/h2>\n\n

    Vi\u1ec7c ph\u00e1t hi\u1ec7n ra v\u1ec7 tinh th\u1ee9 n\u0103m, c\u00f3 t\u00ean l\u00e0 P5, c\u00f3 \u00fd ngh\u0129a quan tr\u1ecdng \u0111\u1ed1i v\u1edbi t\u00e0u v\u0169 tr\u1ee5 New Horizons, d\u1ef1 ki\u1ebfn s\u1ebd g\u1eb7p Sao Di\u00eam V\u01b0\u01a1ng v\u00e0o th\u00e1ng 7 n\u0103m 2015. T\u00e0u v\u0169 tr\u1ee5 s\u1ebd ph\u1ea3i \u0111i\u1ec1u h\u01b0\u1edbng qua m\u1ed9t tr\u01b0\u1eddng m\u1ea3nh v\u1ee1 bao quanh Sao Di\u00eam V\u01b0\u01a1ng v\u00e0 n\u1ebfu c\u00f3 th\u00eam v\u1ec7 tinh th\u00ec c\u00f3 th\u1ec3 g\u00e2y nguy hi\u1ec3m.<\/p>\n\n

    \u0110\u1eb7t t\u00ean cho c\u00e1c v\u1ec7 tinh<\/h2>\n\n

    T\u00ean c\u1ee7a v\u1ec7 tinh th\u1ee9 n\u0103m v\u00e0 th\u1ee9 t\u01b0 c\u1ee7a Sao Di\u00eam V\u01b0\u01a1ng v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh, nh\u01b0ng c\u00f3 kh\u1ea3 n\u0103ng s\u1ebd theo ch\u1ee7 \u0111\u1ec1 v\u1ec1 th\u1ea7n Hades\/\u00e2m ph\u1ee7 \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c v\u1ec7 tinh kh\u00e1c c\u1ee7a Sao Di\u00eam V\u01b0\u01a1ng g\u1ed3m c\u00f3 Charon, Hydra v\u00e0 Nix.<\/p>\n\n

    Cu\u1ed9c tranh lu\u1eadn v\u1eabn ti\u1ebfp di\u1ec5n<\/h2>\n\n

    Cu\u1ed9c tranh lu\u1eadn v\u1ec1 v\u1ecb th\u1ebf h\u00e0nh tinh c\u1ee7a Sao Di\u00eam V\u01b0\u01a1ng c\u00f3 th\u1ec3 s\u1ebd c\u00f2n ti\u1ebfp di\u1ec5n trong m\u1ed9t th\u1eddi gian n\u1eefa. Vi\u1ec7c ph\u00e1t hi\u1ec7n ra v\u1ec7 tinh th\u1ee9 n\u0103m \u0111\u00e3 \u0111\u1ed5 th\u00eam d\u1ea7u v\u00e0o l\u1eeda, nh\u01b0ng IAU kh\u00f4ng c\u00f3 k\u1ebf ho\u1ea1ch xem x\u00e9t l\u1ea1i v\u1ea5n \u0111\u1ec1 n\u00e0y trong t\u01b0\u01a1ng lai g\u1ea7n. Hi\u1ec7n t\u1ea1i, Sao Di\u00eam V\u01b0\u01a1ng v\u1eabn l\u00e0 m\u1ed9t h\u00e0nh tinh l\u00f9n, nh\u01b0ng kh\u1ea3 n\u0103ng ph\u00e2n lo\u1ea1i l\u1ea1i trong t\u01b0\u01a1ng lai v\u1eabn ch\u01b0a b\u1ecb lo\u1ea1i tr\u1eeb.<\/p>","protected":false},"excerpt":{"rendered":"

    V\u1ecb th\u1ebf h\u00e0nh tinh c\u1ee7a Sao Di\u00eam V\u01b0\u01a1ng: \u0110\u00e1nh gi\u00e1 l\u1ea1i Ph\u00e1t hi\u1ec7n ra v\u1ec7 tinh th\u1ee9 n\u0103m l\u00e0m b\u00f9ng n\u1ed5 cu\u1ed9c tranh lu\u1eadn Vi\u1ec7c ph\u00e1t hi\u1ec7n ra v\u1ec7 tinh…<\/p>\n","protected":false},"author":2,"featured_media":24263,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1836],"tags":[5945,1173,434,4347,1304,435],"class_list":["post-11375","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomy-and-astrophysics","tag-dwarf-planet","tag-solar-system","tag-space-exploration","tag-moons","tag-pluto","tag-astronomy"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/11375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=11375"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/11375\/revisions"}],"predecessor-version":[{"id":24264,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/11375\/revisions\/24264"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media\/24263"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=11375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=11375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=11375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}