{"id":16345,"date":"2021-11-27T20:29:11","date_gmt":"2021-11-27T13:29:11","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=16345"},"modified":"2021-11-27T20:29:12","modified_gmt":"2021-11-27T13:29:12","slug":"that-su-co-mot-hanh-tinh-x-ben-ngoai-nhung-hanh-tinh-da-duoc-biet-hay-khong","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/that-su-co-mot-hanh-tinh-x-ben-ngoai-nhung-hanh-tinh-da-duoc-biet-hay-khong\/","title":{"rendered":"Th\u1eadt s\u1ef1 c\u00f3 m\u1ed9t h\u00e0nh tinh X b\u00ean ngo\u00e0i nh\u1eefng h\u00e0nh tinh \u0111\u00e3 \u0111\u01b0\u1ee3c bi\u1ebft hay kh\u00f4ng?"},"content":{"rendered":"\n<p>T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 12 &#8211; Arkady Leokum<\/p>\n\n\n\n<p>Kh\u1ea3 n\u0103ng c\u1ee7a vi\u1ec7c c\u00f3 th\u00eam m\u1ed9t h\u00e0nh tinh n\u1eefa trong h\u1ec7 m\u1eb7t tr\u1eddi c\u1ee7a ch\u00fang ta \u0111\u00e3 \u0111\u01b0\u1ee3c n\u00eau ra m\u1ed9t th\u1eddi gian ng\u1eafn sau ph\u00e1t hi\u1ec7n n\u0103m 1930 v\u1ec1 Sao Di\u00eam V\u01b0\u01a1ng (Pluto). Tuy v\u1eabn c\u00f2n tranh c\u00e3i v\u1ec1 vi\u1ec7c n\u00f3 c\u00f3 x\u1ee9ng \u0111\u00e1ng l\u00e0 m\u1ed9t h\u00e0nh tinh kh\u00f4ng th\u00ec cho \u0111\u1ebfn nay n\u00f3 c\u0169ng v\u1eabn l\u00e0 \u201ch\u00e0nh tinh\u201d xa nh\u1ea5t \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn. Vi\u1ec7c t\u00ecm ki\u1ebfm Sao Di\u00eam V\u01b0\u01a1ng \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi c\u00e1c sai l\u1ec7ch trong vi\u1ec7c t\u00ednh to\u00e1n qu\u1ef9 \u0111\u1ea1o c\u1ee7a sao Thi\u00ean V\u01b0\u01a1ng (Uranus). C\u00e1c t\u00ednh to\u00e1n n\u00e0y \u0111\u01b0a ra gi\u1ea3 thuy\u1ebft r\u1eb1ng sao Thi\u00ean V\u01b0\u01a1ng \u0111\u00e3 b\u1ecb k\u00e9o kh\u1ecfi qu\u1ef9 \u0111\u1ea1o b\u1edfi m\u1ed9t h\u00e0nh tinh kh\u00e1c ch\u01b0a \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn. Tuy nhi\u00ean, khi sao Di\u00eam V\u01b0\u01a1ng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n, n\u00f3 t\u1ecf ra qu\u00e1 nh\u1ecf v\u00e0 qu\u00e1 xa \u0111\u1ec3 t\u00ednh to\u00e1n c\u00e1c s\u1ed1 li\u1ec7u kh\u00f4ng th\u1ed1ng nh\u1ea5t nhau- khi\u1ebfn c\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc suy \u0111o\u00e1n v\u1ec1 s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a m\u1ed9t \u201ch\u00e0nh tinh X\u201d l\u1edbn h\u01a1n, cho d\u00f9 n\u1eb1m \u1edf r\u1ea5t xa. \u00dd t\u01b0\u1edfng \u0111\u00f3 \u0111\u00e3 b\u1ecb gi\u00e1ng m\u1ed9t \u0111\u00f2n m\u1ea1nh trong th\u1eadp ni\u00ean 1980, khi phi thuy\u1ec1n Voyager 2 g\u1eedi v\u1ec1 tr\u00e1i \u0111\u1ea5t c\u00e1c s\u1ed1 li\u1ec7u m\u1edbi gi\u00fap cho vi\u1ec7c x\u00e1c \u0111\u1ecbnh kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a c\u00e1c h\u00e0nh tinh b\u00ean ngo\u00e0i. Khi c\u00e1c qu\u1ef9 \u0111\u1ea1o c\u1ee7a c\u00e1c h\u00e0nh tinh \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n l\u1ea1i nh\u1edd v\u00e0o c\u00e1c s\u1ed1 li\u1ec7u n\u00e0y th\u00ec m\u1ed1i nghi ng\u1edd v\u1ec1 s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a m\u1ed9t h\u00e0nh tinh X n\u00e0o \u0111\u00f3 kh\u00f4ng c\u00f2n n\u1eefa.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 12 &#8211; Arkady Leokum Kh\u1ea3 n\u0103ng c\u1ee7a vi\u1ec7c c\u00f3 th\u00eam m\u1ed9t h\u00e0nh tinh n\u1eefa trong h\u1ec7 m\u1eb7t tr\u1eddi c\u1ee7a ch\u00fang ta \u0111\u00e3 \u0111\u01b0\u1ee3c n\u00eau ra m\u1ed9t th\u1eddi gian ng\u1eafn sau ph\u00e1t hi\u1ec7n n\u0103m 1930 v\u1ec1 Sao Di\u00eam V\u01b0\u01a1ng (Pluto). Tuy v\u1eabn c\u00f2n tranh [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15],"tags":[],"class_list":["post-16345","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/16345","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=16345"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/16345\/revisions"}],"predecessor-version":[{"id":16346,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/16345\/revisions\/16346"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=16345"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=16345"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=16345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}