{"id":9895,"date":"2021-11-21T18:41:21","date_gmt":"2021-11-21T11:41:21","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=9895"},"modified":"2021-11-21T19:38:40","modified_gmt":"2021-11-21T12:38:40","slug":"tiet-khi-duoc-xac-dinh-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/tiet-khi-duoc-xac-dinh-nhu-the-nao\/","title":{"rendered":"Ti\u1ebft kh\u00ed \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"\n<p>Tr\u00e1i \u0110\u1ea5t quay m\u1ed9t v\u00f2ng quanh M\u1eb7t Tr\u1eddi m\u1ea5t 365 ng\u00e0y 5h48\u201946\u2019\u2019, Tr\u00e1i \u0110\u1ea5t t\u1ef1 quay quanh m\u00ecnh m\u1ed9t v\u00f2ng m\u1ea5t 23h56\u20194\u2019\u2019. V\u00ec qu\u1ef9 \u0111\u1ea1o quay quanh M\u1eb7t Tr\u1eddi kh\u00f4ng tr\u00f9ng v\u1edbi \u0111\u01b0\u1eddng x\u00edch \u0111\u1ea1o m\u00e0 c\u00f3 m\u1ed9t \u0111\u1ed9 nghi\u00eang nh\u1ea5t \u0111\u1ecbnh, cho n\u00ean v\u1ecb tr\u00ed M\u1eb7t T r\u1eddi chi\u1ebfu xu\u1ed1ng T r\u00e1i \u0110\u1ea5t b\u1ed1n m\u00f9a trong m\u1ed9t n\u0103m r\u1ea5t kh\u00e1c nhau. L\u1ea5y B\u1eafc b\u00e1n c\u1ea7u m\u00e0 n\u00f3i khi M\u1eb7t T r\u1eddi chi\u1ebfu th\u1eb3ng l\u00ean 23,5 v\u0129 \u0111\u1ed9 B\u1eafc th\u00ec trong thi\u00ean v\u0103n g\u1ecdi l\u00e0 h\u1ea1 ch\u00ed, khi M\u1eb7t T r\u1eddi chi\u1ebfu vu\u00f4ng g\u00f3c v\u1edbi 23,5 v\u0129 \u0111\u1ed9 Nam th\u00ec g\u1ecdi l\u00e0 \u0111\u00f4ng ch\u00ed. H\u1ea1 ch\u00ed v\u00e0 \u0111\u00f4ng ch\u00ed l\u00e0 ch\u1ec9 th\u1eddi gian \u0111\u00e3 b\u01b0\u1edbc v\u00e0o gi\u1eefa m\u00f9a h\u00e8 v\u00e0 m\u00f9a \u0111\u00f4ng. T rong m\u1ed9t n\u0103m c\u00f3 hai l\u1ea7n M\u1eb7t T r\u1eddi chi\u1ebfu th\u1eb3ng l\u00ean \u0111\u01b0\u1eddng x\u00edch \u0111\u1ea1o, \u0111\u01b0\u1ee3c ph\u00e2n bi\u1ec7t l\u00e0 xu\u00e2n ph\u00e2n v\u00e0 thu ph\u00e2n. Xu\u00e2n ph\u00e2n v\u00e0 thu ph\u00e2n l\u00e0 ch\u1ec9 gi\u1eefa m\u00f9a xu\u00e2n v\u00e0 m\u00f9a thu. Ng\u00e0y v\u00e0 \u0111\u00eam c\u1ee7a hai ng\u00e0y n\u00e0y d\u00e0i b\u1eb1ng nhau. Nh\u01b0 v\u1eady m\u1ed9t n\u0103m c\u00f3 th\u1ec3 d\u00f9ng b\u1ed1n ng\u00e0y xu\u00e2n ph\u00e2n, h\u1ea1 ch\u00ed, thu ph\u00e2n, \u0111\u00f4ng ch\u00ed \u0111\u1ec3 chia l\u00e0m b\u1ed1n giai \u0111o\u1ea1n. N\u1ebfu \u0111em m\u1ed7i giai \u0111o\u1ea1n ph\u00e2n chia th\u00e0nh s\u00e1u giai \u0111o\u1ea1n nh\u1ecf, m\u1ed7i \u0111o\u1ea1n nh\u1ecf kho\u1ea3ng 15 ng\u00e0y th\u00ec c\u1ea3 n\u0103m c\u00f3 th\u1ec3 ph\u00e2n th\u00e0nh 24 \u0111o\u1ea1n nh\u1ecf, do \u0111\u00f3 sinh ra 24 ti\u1ebft, kh\u00ed.<\/p>\n\n\n\n<p>T\u1eeb th\u1eddi T\u1ea7n H\u00e1n c\u1ee7a Trung Qu\u1ed1c \u0111\u00e3 \u0111\u1eb7t t\u00ean cho 24 ti\u1ebft, kh\u00ed l\u00e0: L\u1eadp xu\u00e2n, V\u0169 th\u1ee7y, Kinh tr\u1eadp, Xu\u00e2n ph\u00e2n, T hanh minh, C\u1ed1c v\u0169, L\u1eadp h\u1ea1, T i\u1ec3u m\u00e3n, Mang ch\u1ee7ng, H\u1ea1 ch\u00ed, T i\u1ec3u th\u1eed, \u0110\u1ea1i th\u1eed, L\u1eadp thu, X\u1eed th\u1eed, B\u1ea1ch l\u1ed9, T hu ph\u00e2n, H\u00e0n l\u1ed9, S\u01b0\u01a1ng gi\u00e1ng, L\u1eadp \u0111\u00f4ng, T i\u1ec3u tuy\u1ebft, \u0110\u1ea1i tuy\u1ebft, \u0110\u00f4ng ch\u00ed, T i\u1ec3u h\u00e0n, \u0110\u1ea1i h\u00e0n.<\/p>\n\n\n\n<p>H\u00e0m ngh\u0129a t\u00ean g\u1ecdi c\u1ee7a 24 ti\u1ebft, kh\u00ed c\u00f3 th\u1ec3 th\u1ea5y r\u00f5: n\u00f3 ph\u1ea3n \u00e1nh s\u1ef1 bi\u1ebfn \u0111\u1ed5i c\u1ee7a b\u1ed1n m\u00f9a. L\u1eadp xu\u00e2n, Xu\u00e2n ph\u00e2n, L\u1eadp h\u1ea1, H\u1ea1 ch\u00ed, L\u1eadp thu, T hu ph\u00e2n, L\u1eadp \u0111\u00f4ng, \u0110\u00f4ng ch\u00ed g\u1ed3m t\u00e1m ti\u1ebft kh\u00ed. L\u1eadp xu\u00e2n, L\u1eadp h\u1ea1, L\u1eadp thu v\u00e0 L\u1eadp \u0111\u00f4ng g\u1ecdi l\u00e0 \u201cT \u1ee9 l\u1eadp\u201d, bi\u1ec3u th\u1ecb b\u1eaft \u0111\u1ea7u b\u1ed1n m\u00f9a. Nh\u01b0ng v\u00ec kh\u00ed h\u1eadu c\u00e1c n\u01a1i kh\u00e1c nhau cho n\u00ean th\u1eddi gian b\u1eaft \u0111\u1ea7u v\u00e0 \u0111\u1ed9 d\u00e0i ng\u1eafn c\u1ee7a b\u1ed1n m\u00f9a c\u0169ng kh\u00e1c nhau. Ph\u1ea3n \u00e1nh s\u1ef1 bi\u1ebfn \u0111\u1ed5i c\u1ee7a kh\u00ed h\u1eadu c\u00f3: T i\u1ec3u th\u1eed, \u0110\u1ea1i th\u1eed, X\u1eed th\u1eed, T i\u1ec3u h\u00e0n, \u0110\u1ea1i h\u00e0n g\u1ed3m n\u0103m ti\u1ebft, kh\u00ed. Ph\u1ea3n \u00e1nh hi\u1ec7n t\u01b0\u1ee3ng kh\u00ed h\u1eadu c\u00f3: V\u0169 th\u1ee7y, C\u1ed1c v\u0169, B\u1ea1ch l\u1ed9, H\u00e0n l\u1ed9, S\u01b0\u01a1ng gi\u00e1ng, T i\u1ec3u tuy\u1ebft, \u0110\u1ea1i tuy\u1ebft, g\u1ed3m b\u1ea3y ti\u1ebft kh\u00ed. Ph\u1ea3n \u00e1nh c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng m\u00f9a v\u1ee5 g\u1ed3m c\u00f3: Kinh tr\u1eadp, Thanh minh, Ti\u1ec3u m\u00e3n, Mang ch\u1ee7ng g\u1ed3m b\u1ed1n ti\u1ebft, kh\u00ed. Nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng c\u00f3 li\u00ean quan \u0111\u1ebfn kh\u00ed h\u1eadu, th\u1eddi ti\u1ebft v\u00e0 m\u00f9a m\u00e0ng lu\u00f4n c\u00f3 s\u1eafc th\u00e1i \u0111\u1ecba ph\u01b0\u01a1ng. V\u00ed d\u1ee5 nh\u01b0 ti\u1ebft S\u01b0\u01a1ng gi\u00e1ng v\u00e0o kho\u1ea3ng ng\u00e0y 23 th\u00e1ng 10 d\u01b0\u01a1ng l\u1ecbch, n\u00f3 c\u00f3 \u00fd ngh\u0129a l\u00e0 ti\u1ebft kh\u00ed n\u00e0y \u0111\u00e3 \u0111\u1ebfn th\u00ec tr\u00ean m\u1eb7t \u0111\u1ea5t l\u1ea7n \u0111\u1ea7u ti\u00ean s\u1ebd xu\u1ea5t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng s\u01b0\u01a1ng gi\u00e1ng. Nh\u01b0ng nh\u1eefng t\u1ec9nh n\u1eb1m \u1edf mi\u1ec1n Nam T rung Qu\u1ed1c nh\u01b0 Ph\u00fac Ki\u1ebfn, \u0110\u00e0i Loan, H\u1ea3i Nam c\u1ea3 n\u0103m kh\u00f4ng c\u00f3 s\u01b0\u01a1ng, ng\u01b0\u1ee3c l\u1ea1i nh\u1eefng t\u1ec9nh n\u1eb1m \u1edf ph\u00eda B\u1eafc T rung Qu\u1ed1c nh\u01b0 H\u1eafc Long Giang v\u00e0 khu t\u1ef1 tr\u1ecb N\u1ed9i M\u00f4ng to\u00e0n n\u0103m l\u1ea1i l\u00e0 s\u01b0\u01a1ng tuy\u1ebft, cho n\u00ean s\u1edbm h\u01a1n ng\u00e0y ti\u1ebft kh\u00ed \u0111\u00f3. \u0110\u00f3 l\u00e0 v\u00ec t\u1eeb th\u1eddi T \u1ea7n H\u00e1n d\u00e2n T rung Qu\u1ed1c ch\u1ee7 y\u1ebfu s\u1ed1ng t\u1eadp trung \u1edf l\u01b0u v\u1ef1c s\u00f4ng Ho\u00e0ng H\u00e0, n\u00ean 24 ti\u1ebft, kh\u00ed ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c c\u0103n c\u1ee9 theo kh\u00ed h\u1eadu v\u00e0 ho\u1ea1t \u0111\u1ed9ng n\u00f4ng nghi\u1ec7p c\u1ee7a l\u01b0u v\u1ef1c Ho\u00e0ng H\u00e0 m\u00e0 x\u00e1c l\u1eadp n\u00ean. V\u00ec t\u1eeb th\u1eddi T \u1ea7n H\u00e1n \u0111\u1ebfn nay kh\u00ed h\u1eadu \u0111\u00e3 bi\u1ebfn \u0111\u1ed5i r\u1ea5t l\u1edbn, hi\u1ec7n nay l\u01b0u v\u1ef1c s\u00f4ng T r\u01b0\u1eddng Giang c\u0169ng c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh. \u0110\u1ed3ng th\u1eddi 15 ng\u00e0y l\u00e0 m\u1ed9t giai \u0111o\u1ea1n cho n\u00ean s\u1eafp x\u1ebfp \u0111\u1ed1i v\u1edbi s\u1ea3n xu\u1ea5t n\u00f4ng nghi\u1ec7p t\u01b0\u01a1ng \u0111\u1ed1i thu\u1eadn ti\u1ec7n. Do \u0111\u00f3 c\u00e1c v\u00f9ng n\u00f4ng th\u00f4n T rung Qu\u1ed1c \u0111\u1ec1u quen d\u00f9ng 24 ti\u1ebft, kh\u00ed. Nh\u01b0ng T rung Qu\u1ed1c \u0111\u1ea5t r\u1ed9ng, kh\u00ed h\u1eadu c\u00e1c v\u00f9ng kh\u00e1c nhau, c\u00f3 nh\u1eefng v\u00f9ng ho\u1ea1t \u0111\u1ed9ng n\u00f4ng nghi\u1ec7p th\u1ef1c t\u1ebf kh\u00f4ng th\u1ec3 ch\u1ec9 c\u0103n c\u1ee9 v\u00e0o \u00fd ngh\u0129a t\u00ean g\u1ecdi c\u1ee7a c\u00e1c kh\u00ed ti\u1ebft m\u00e0 ch\u1ec9 xem n\u00f3 nh\u01b0 m\u1ed9t th\u1eddi \u0111o\u1ea1n \u0111\u1ec3 \u1ee9ng d\u1ee5ng. N\u00f3i c\u00e1ch kh\u00e1c, s\u1ef1 s\u1eafp x\u1ebfp ho\u1ea1t \u0111\u1ed9ng n\u00f4ng nghi\u1ec7p c\u1ee7a c\u00e1c v\u00f9ng c\u00f2n c\u0103n c\u1ee9 v\u00e0o kh\u00ed h\u1eadu, \u0111\u1eb7c \u0111i\u1ec3m canh t\u00e1c v\u00e0 \u0111\u1ea5t \u0111ai c\u1ee7a v\u00f9ng \u0111\u00f3 \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh. V\u00ed d\u1ee5 t\u1ec9nh H\u1eafc Long Giang v\u00e0 t\u1ec9nh Qu\u1ea3ng \u0110\u00f4ng mu\u1ed1n c\u0103n c\u1ee9 \u00fd ngh\u0129a c\u1ee7a c\u00e1c ti\u1ebft, kh\u00ed \u0111\u1ec3 s\u1eafp x\u1ebfp l\u1ecbch s\u1ea3n xu\u1ea5t n\u00f4ng nghi\u1ec7p th\u00ec s\u1ebd ho\u00e0n to\u00e0n kh\u00f4ng th\u00edch h\u1ee3p. 24 ti\u1ebft, kh\u00ed c\u0103n c\u1ee9 \u00e1nh n\u1eafng M\u1eb7t Tr\u1eddi chi\u1ebfu l\u00ean Tr\u00e1i \u0110\u1ea5t l\u00e0m xu\u1ea5t ph\u00e1t \u0111i\u1ec3m cho n\u00ean n\u00f3 thu\u1ed9c v\u1ec1 ph\u1ea1m tr\u00f9 d\u01b0\u01a1ng l\u1ecbch. S\u1ef1 b\u1eaft \u0111\u1ea7u c\u1ee7a m\u1ed7i ti\u1ebft, kh\u00ed c\u0103n b\u1ea3n t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t ng\u00e0y nh\u1ea5t \u0111\u1ecbnh c\u1ee7a d\u01b0\u01a1ng l\u1ecbch, th\u01b0\u1eddng ch\u00eanh l\u1ec7ch ch\u1ec9 m\u1ed9t \u0111\u1ebfn hai ng\u00e0y.<\/p>\n\n\n\n<p>T \u1eeb kho\u00e1: Ti\u1ebft; Kh\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tr\u00e1i \u0110\u1ea5t quay m\u1ed9t v\u00f2ng quanh M\u1eb7t Tr\u1eddi m\u1ea5t 365 ng\u00e0y 5h48\u201946\u2019\u2019, Tr\u00e1i \u0110\u1ea5t t\u1ef1 quay quanh m\u00ecnh m\u1ed9t v\u00f2ng m\u1ea5t 23h56\u20194\u2019\u2019. V\u00ec qu\u1ef9 \u0111\u1ea1o quay quanh M\u1eb7t Tr\u1eddi kh\u00f4ng tr\u00f9ng v\u1edbi \u0111\u01b0\u1eddng x\u00edch \u0111\u1ea1o m\u00e0 c\u00f3 m\u1ed9t \u0111\u1ed9 nghi\u00eang nh\u1ea5t \u0111\u1ecbnh, cho n\u00ean v\u1ecb tr\u00ed M\u1eb7t T r\u1eddi chi\u1ebfu xu\u1ed1ng T r\u00e1i \u0110\u1ea5t b\u1ed1n [&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":[15,19],"tags":[],"class_list":["post-9895","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-tu-nhien"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9895","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=9895"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9895\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9895"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9895"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}