{"id":7299,"date":"2021-11-20T12:58:31","date_gmt":"2021-11-20T05:58:31","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=7299"},"modified":"2021-11-20T15:09:15","modified_gmt":"2021-11-20T08:09:15","slug":"lam-the-nao-de-biet-duoc-ve-tinh-dang-bay-tren-quy-dao-du-dinh","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/lam-the-nao-de-biet-duoc-ve-tinh-dang-bay-tren-quy-dao-du-dinh\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c v\u1ec7 tinh \u0111ang bay tr\u00ean qu\u1ef9 \u0111\u1ea1o d\u1ef1 \u0111\u1ecbnh?"},"content":{"rendered":"\n<p>C\u00e1c v\u1ec7 tinh v\u00e0 con t\u00e0u l\u00e0m vi\u1ec7c trong v\u0169 tr\u1ee5 \u0111\u1ec1u bay trong qu\u1ef9 \u0111\u1ea1o \u0111\u00e3 \u0111\u01b0\u1ee3c d\u1ef1 ki\u1ebfn. Ch\u00fang gi\u1ed1ng nh\u01b0 ng\u01b0\u1eddi \u0111i b\u1ed9 v\u00e0 xe c\u1ed9 \u0111i tr\u00ean ph\u1ea7n \u0111\u01b0\u1eddng c\u1ee7a m\u00ecnh, \u0111\u1ec1u c\u00f3 qu\u1ef9 \u0111\u1ea1o ri\u00eang. M\u1eb7c d\u00f9 qu\u1ef9 \u0111\u1ea1o c\u1ee7a ch\u00fang kh\u00e1c nhau, nh\u01b0ng gi\u1ed1ng nh\u01b0 ch\u00fang ta ph\u1ea3i t\u00f4n tr\u1ecdng quy t\u1eafc giao th\u00f4ng, ch\u00fang c\u0169ng ph\u1ea3i t\u00f4n tr\u1ecdng k\u1ef7 lu\u1eadt bay trong m\u1eb7t ph\u1eb3ng qu\u1ef9 \u0111\u1ea1o c\u1ee7a m\u00ecnh v\u00e0 ph\u1ea3i \u0111i qua trung t\u00e2m Tr\u00e1i \u0110\u1ea5t.<\/p>\n\n\n\n<p>N\u1ebfu qu\u1ef9 \u0111\u1ea1o c\u1ee7a n\u00f3 l\u00e0 h\u00ecnh tr\u00f2n th\u00ec t\u00e2m Tr\u00e1i \u0110\u1ea5t l\u00e0 t\u00e2m h\u00ecnh tr\u00f2n; n\u1ebfu qu\u1ef9 \u0111\u1ea1o c\u1ee7a n\u00f3 l\u00e0 h\u00ecnh elip th\u00ec t\u00e2m Tr\u00e1i \u0110\u1ea5t n\u1eb1m tr\u00ean v\u1ecb tr\u00ed m\u1ed9t ti\u00eau \u0111i\u1ec3m c\u1ee7a elip \u0111\u00f3.<\/p>\n\n\n\n<p>\u0110a s\u1ed1 c\u00e1c v\u1ec7 tinh khi ph\u00f3ng l\u00ean qu\u1ef9 \u0111\u1ea1o t\u1ed1c \u0111\u1ed9 th\u01b0\u1eddng l\u1edbn h\u01a1n t\u1ed1c \u0111\u1ed9 v\u0169 tr\u1ee5 c\u1ea5p m\u1ed9t, cho n\u00ean qu\u1ef9 \u0111\u1ea1o c\u1ee7a ch\u00fang ph\u1ea7n l\u1edbn l\u00e0 h\u00ecnh elip. Gi\u1ed1ng nh\u01b0 gi\u1eefa Tr\u00e1i \u0110\u1ea5t v\u00e0 M\u1eb7t Tr\u1eddi c\u00f3 \u0111i\u1ec3m c\u1eadn nh\u1eadt v\u00e0 \u0111i\u1ec3m vi\u1ec5n nh\u1eadt, kho\u1ea3ng c\u00e1ch gi\u1eefa v\u1ec7 tinh v\u00e0 Tr\u00e1i \u0110\u1ea5t c\u0169ng c\u00f3 l\u00fac g\u1ea7n l\u00fac xa. Ng\u01b0\u1eddi ta g\u1ecdi \u0111i\u1ec3m g\u1ea7n m\u1eb7t \u0111\u1ea5t c\u1ee7a qu\u1ef9 \u0111\u1ea1o l\u00e0 &#8220;\u0111i\u1ec3m c\u1eadn \u0111\u1ecba&#8221;, g\u1ecdi \u0111i\u1ec3m xa nh\u1ea5t so v\u1edbi m\u1eb7t \u0111\u1ea5t l\u00e0 &#8220;\u0111i\u1ec3m vi\u1ec5n \u0111\u1ecba&#8221;.<\/p>\n\n\n\n<p>V\u1ec7 tinh nh\u00e2n t\u1ea1o ngo\u00e0i qu\u1ef9 \u0111\u1ea1o c\u1ed1 \u0111\u1ecbnh quay quanh Tr\u00e1i \u0110\u1ea5t ra, c\u00f2n c\u00f3 m\u1ed9t tham s\u1ed1 quan tr\u1ecdng \u0111\u00f3 l\u00e0 g\u00f3c qu\u1ef9 \u0111\u1ea1o. N\u00f3 ch\u1ec9 g\u00f3c k\u1eb9p gi\u1eefa m\u1eb7t ph\u1eb3ng qu\u1ef9 \u0111\u1ea1o v\u1ec7 tinh v\u1edbi m\u1eb7t ph\u1eb3ng x\u00edch \u0111\u1ea1o c\u1ee7a Tr\u00e1i \u0110\u1ea5t.<\/p>\n\n\n\n<p>C\u0103n c\u1ee9 \u0111\u1ed9 l\u1edbn c\u1ee7a g\u00f3c k\u1eb9p n\u00e0y, \u0111i\u1ec3m c\u1eadn \u0111\u1ecba v\u00e0 \u0111i\u1ec3m vi\u1ec5n \u0111\u1ecba c\u1ee7a qu\u1ef9 \u0111\u1ea1o m\u00e0 \u0111\u00e0i thi\u00ean v\u0103n c\u00e1c n\u01b0\u1edbc tr\u00ean th\u1ebf gi\u1edbi c\u00f3 th\u1ec3 theo d\u00f5i \u0111\u01b0\u1ee3c tung t\u00edch v\u00e0 t\u00ednh ra \u0111\u01b0\u1eddng bay c\u1ee7a v\u1ec7 tinh \u0111\u1ec3 b\u00e1o cho ta bi\u1ebft \u1edf t\u1eebng th\u1eddi \u0111i\u1ec3m n\u00e0o v\u1ec7 tinh \u0111ang \u1edf ph\u01b0\u01a1ng v\u1ecb g\u00ec, t\u1eeb \u0111\u00f3 bi\u1ebft \u0111\u01b0\u1ee3c n\u00f3 c\u00f2n bay trong qu\u1ef9 \u0111\u1ea1o d\u1ef1 \u0111\u1ecbnh hay kh\u00f4ng.<\/p>\n\n\n\n<p>G\u00f3c nghi\u00eang c\u1ee7a qu\u1ef9 \u0111\u1ea1o v\u1ec7 tinh c\u00e0ng l\u1edbn th\u00ec h\u00ecnh chi\u1ebfu c\u1ee7a n\u00f3 tr\u00ean Tr\u00e1i \u0110\u1ea5t c\u00e0ng l\u1edbn. V\u00ed d\u1ee5 v\u1ec7 tinh \u0111\u1ea7u ti\u00ean c\u1ee7a Trung Qu\u1ed1c ch\u1ecdn g\u00f3c nghi\u00eang l\u00e0 68,5o. \u0110i\u1ec3m quan s\u00e1t ph\u00eda d\u01b0\u1edbi c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ebfn v\u00f2ng c\u1ef1c Nam B\u1eafc. C\u00e1c khu c\u00f3 d\u00e2n c\u01b0 tr\u00ean Tr\u00e1i \u0110\u1ea5t n\u00f3 \u0111\u1ec1u quan s\u00e1t \u0111\u01b0\u1ee3c, nh\u01b0ng v\u1ec7 tinh c\u00f3 g\u00f3c nghi\u00eang qu\u1ef9 \u0111\u1ea1o l\u1edbn nh\u01b0 th\u1ebf, khi ph\u00f3ng \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 n\u0103ng l\u01b0\u1ee3ng v\u00e0 chi ph\u00ed l\u1edbn.<\/p>\n\n\n\n<p>Cho n\u00ean khi <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">thi\u1ebft k\u1ebf<\/a> qu\u1ef9 \u0111\u1ea1o v\u1ec7 tinh, c\u00e1c nh\u00e0 khoa h\u1ecdc ph\u1ea3i t\u00ednh to\u00e1n t\u1ec9 m\u1ec9, k\u1ebft h\u1ee3p ph\u1ed1i h\u1ee3p gi\u1eefa ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng c\u1ee7a t\u00ean l\u1eeda v\u00e0 ch\u1ecdn qu\u1ef9 \u0111\u1ea1o m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd, t\u1ee9c l\u00e0 ph\u1ea3i gi\u1ea3i quy\u1ebft h\u00e0ng lo\u1ea1t v\u1ea5n \u0111\u1ec1 v\u1ec1 k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n<p>T\u1eeb kho\u00e1: V\u1ec7 tinh nh\u00e2n t\u1ea1o; Qu\u1ef9 \u0111\u1ea1o bay c\u1ee7a<\/p>\n\n\n\n<p><\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1c v\u1ec7 tinh v\u00e0 con t\u00e0u l\u00e0m vi\u1ec7c trong v\u0169 tr\u1ee5 \u0111\u1ec1u bay trong qu\u1ef9 \u0111\u1ea1o \u0111\u00e3 \u0111\u01b0\u1ee3c d\u1ef1 ki\u1ebfn. Ch\u00fang gi\u1ed1ng nh\u01b0 ng\u01b0\u1eddi \u0111i b\u1ed9 v\u00e0 xe c\u1ed9 \u0111i tr\u00ean ph\u1ea7n \u0111\u01b0\u1eddng c\u1ee7a m\u00ecnh, \u0111\u1ec1u c\u00f3 qu\u1ef9 \u0111\u1ea1o ri\u00eang. M\u1eb7c d\u00f9 qu\u1ef9 \u0111\u1ea1o c\u1ee7a ch\u00fang kh\u00e1c nhau, nh\u01b0ng gi\u1ed1ng nh\u01b0 ch\u00fang ta ph\u1ea3i t\u00f4n [&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":[15,7],"tags":[],"class_list":["post-7299","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7299","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=7299"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7299\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7299"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7299"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7299"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}