M\u1eb7t Tr\u1eddi l\u00e0 thi\u00ean th\u1ec3 m\u00e0 ta quen thu\u1ed9c nh\u1ea5t. N\u00f3 l\u00e0 thi\u00ean th\u1ec3 trung t\u00e2m c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi, kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ea1t 2 t\u1ec9 t\u1ec9 t\u1ec9 t\u1ea5n, nhi\u1ec1u h\u01a1n 33 v\u1ea1n l\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a Tr\u00e1i \u0110\u1ea5t ch\u00fang ta, n\u00f3 l\u00e0 m\u1ed9t kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ed9c nh\u1ea5t chi\u1ebfm kho\u1ea3ng 99% t\u1ed5ng s\u1ed1 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a h\u00e0ng v\u1ea1n c\u00e1c thi\u00ean th\u1ec3 to nh\u1ecf trong to\u00e0n h\u1ec7 M\u1eb7t Tr\u1eddi c\u1ed9ng l\u1ea1i.<\/p>\n\n\n\n
\u0110\u01b0\u1eddng k\u00ednh c\u1ee7a M\u1eb7t Tr\u1eddi kho\u1ea3ng 1,392 tri\u1ec7u km, g\u1ea5p 109 l\u1ea7n \u0111\u01b0\u1eddng k\u00ednh Tr\u00e1i \u0110\u1ea5t. \u0110\u1ed9 s\u00e1ng c\u1ee7a n\u00f3 c\u00e0ng kh\u00f4ng c\u00f3 thi\u00ean th\u1ec3 n\u00e0o so s\u00e1nh \u0111\u01b0\u1ee3c. C\u1ea5p sao c\u1ee7a n\u00f3 l\u00e0 c\u1ea5p – 26,7, so v\u1edbi nh\u1eefng sao t\u1ed1i nh\u1ea5t m\u00e0 m\u1eaft th\u01b0\u1eddng c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c s\u00e1ng h\u01a1n m\u1ed9t v\u1ea1n t\u1ec9 l\u1ea7n.<\/p>\n\n\n\n
V\u1edbi con ng\u01b0\u1eddi s\u1ed1ng tr\u00ean Tr\u00e1i \u0110\u1ea5t th\u00ec M\u1eb7t Tr\u1eddi kh\u00e1c h\u1eb3n v\u1edbi c\u00e1c thi\u00ean th\u1ec3 kh\u00e1c. Nguy\u00ean nh\u00e2n ch\u1ee7 y\u1ebfu l\u00e0 v\u00ec n\u00f3 c\u00e1ch ch\u00fang ta r\u1ea5t g\u1ea7n, l\u00e0 m\u1ed9t trong nh\u1eefng h\u1eb1ng tinh g\u1ea7n ta nh\u1ea5t. Kho\u1ea3ng c\u00e1ch gi\u1eefa M\u1eb7t Tr\u1eddi v\u1edbi Tr\u00e1i \u0110\u1ea5t kho\u1ea3ng 150 tri\u1ec7u km, \u00e1nh s\u00e1ng \u0111i t\u1eeb M\u1eb7t Tr\u1eddi \u0111\u1ebfn Tr\u00e1i \u0110\u1ea5t ch\u1ec9 m\u1ea5t 8,3 ph\u00fat. So v\u1edbi nh\u1eefng thi\u00ean th\u1ec3 c\u00e1ch ch\u00fang ta r\u1ea5t xa, c\u1ef1 ly ph\u1ea3i d\u00f9ng \u0111\u1ebfn \u0111\u01a1n v\u1ecb n\u0103m \u00e1nh s\u00e1ng \u0111\u1ec3 t\u00ednh th\u00ec qu\u1ea3 th\u1ef1c l\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa M\u1eb7t Tr\u1eddi v\u00e0 Tr\u00e1i \u0110\u1ea5t kh\u00f4ng \u0111\u00e1ng k\u1ec3 g\u00ec.<\/p>\n\n\n\n
Ta c\u00f3 th\u1ec3 so s\u00e1nh M\u1eb7t Tr\u1eddi v\u1edbi c\u00e1c h\u1eb1ng tinh kh\u00e1c \u0111\u1ec3 nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c trong v\u0169 tr\u1ee5 h\u00e0ng ngh\u00ecn t\u1ec9 h\u1eb1ng tinh, M\u1eb7t Tr\u1eddi l\u00e0 m\u1ed9t thi\u00ean th\u1ec3 nh\u01b0 th\u1ebf n\u00e0o.<\/p>\n\n\n\n
V\u1ec1 m\u1eb7t kh\u1ed1i l\u01b0\u1ee3ng m\u00e0 n\u00f3i, kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a c\u00e1c h\u1eb1ng tinh c\u01a1 b\u1ea3n n\u1eb1m trong kho\u1ea3ng m\u1ea5y ph\u1ea7n tr\u0103m \u0111\u1ebfn g\u1ea5p 120 l\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a M\u1eb7t Tr\u1eddi, trong \u0111\u00f3 s\u1ed1 l\u01b0\u1ee3ng h\u1eb1ng tinh b\u1eb1ng 0,1 \u0111\u1ebfn 10 l\u1ea7n M\u1eb7t Tr\u1eddi l\u00e0 nhi\u1ec1u nh\u1ea5t. C\u00f3 th\u1ec3 th\u1ea5y M\u1eb7t Tr\u1eddi ch\u1ec9 l\u00e0 m\u1ed9t h\u1eb1ng tinh ph\u1ed5 th\u00f4ng c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng \u1edf m\u1ee9c trung b\u00ecnh.<\/p>\n\n\n\n
V\u1ec1 \u0111\u01b0\u1eddng k\u00ednh m\u00e0 n\u00f3i, n\u00f3i chung ng\u01b0\u1eddi ta cho r\u1eb1ng: ng\u00f4i sao \u0111\u1ed3ng h\u00e0nh trong s\u1ed1 c\u00e1c ng\u00f4i sao kh\u00f4ng th\u1ea5y \u0111\u01b0\u1ee3c c\u1ee7a h\u1ec7 th\u1ed1ng Th\u1ef1c song tinh trong “ch\u00f2m sao Ng\u1ef1 phu \u03b5” l\u00e0 h\u1eb1ng tinh l\u1edbn nh\u1ea5t \u0111\u00e3 bi\u1ebft \u0111\u01b0\u1ee3c cho \u0111\u1ebfn nay, \u0111\u01b0\u1eddng k\u00ednh kho\u1ea3ng 5,7 t\u1ec9 km, l\u1edbn h\u01a1n 4 ngh\u00ecn l\u1ea7n \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a M\u1eb7t Tr\u1eddi. Sao n\u01a1tron l\u00e0 ng\u00f4i sao nh\u1ecf nh\u1ea5t cho \u0111\u1ebfn nay ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c, \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a n\u00f3 ch\u1ec9 kho\u1ea3ng 10 km, ch\u1ec9 b\u1eb1ng 1\/14 v\u1ea1n c\u1ee7a \u0111\u01b0\u1eddng k\u00ednh M\u1eb7t Tr\u1eddi.<\/p>\n\n\n\n
N\u00f3i v\u1ec1 \u0111\u1ed9 s\u00e1ng, t\u1ee9c l\u00e0 n\u0103ng l\u1ef1c ph\u00e1t s\u00e1ng th\u1ef1c c\u1ee7a c\u00e1c h\u1eb1ng tinh, ph\u1ea1m vi bi\u1ebfn \u0111\u1ed5i r\u1ea5t l\u1edbn, \u0111\u1ea1i th\u1ec3 trong kho\u1ea3ng 1\/50 v\u1ea1n \u0111\u1ebfn tr\u00ean 1\/50 v\u1ea1n c\u1ee7a \u0111\u1ed9 s\u00e1ng M\u1eb7t Tr\u1eddi.<\/p>\n\n\n\n
Nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c h\u1eb1ng tinh c\u01a1 b\u1ea3n n\u1eb1m trong kho\u1ea3ng 2000\u00b0C – 80000\u00b0C, M\u1eb7t Tr\u1eddi n\u1eb1m \u1edf gi\u1eefa, nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3 kho\u1ea3ng 6000 \u00b0C.<\/p>\n\n\n\n
Sau khi so s\u00e1nh ta th\u1ea5y r\u00f5: M\u1eb7t Tr\u1eddi s\u1edf d\u0129 kh\u00e1c v\u1edbi c\u00e1c h\u1eb1ng tinh kh\u00e1c l\u00e0 v\u00ec n\u00f3 r\u1ea5t g\u1ea7n ta. T\u1eeb h\u00e0ng t\u1ec9 h\u1eb1ng tinh trong v\u0169 tr\u1ee5 m\u00e0 x\u00e9t th\u00ec M\u1eb7t Tr\u1eddi ch\u1ec9 l\u00e0 m\u1ed9t h\u1eb1ng tinh b\u00ecnh th\u01b0\u1eddng, kh\u00f4ng c\u00f3 g\u00ec \u0111\u1eb7c bi\u1ec7t. Kh\u00f4ng nh\u1eefng th\u1ebf, n\u00f3 c\u0169ng gi\u1ed1ng nh\u01b0 c\u00e1c h\u1eb1ng tinh kh\u00e1c, ch\u1ec9 l\u00e0 m\u1ed9t th\u00e0nh vi\u00ean trong h\u1ec7 Ng\u00e2n h\u00e0 m\u00e0 th\u00f4i.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: M\u1eb7t Tr\u1eddi; H\u1eb1ng tinh.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
M\u1eb7t Tr\u1eddi l\u00e0 thi\u00ean th\u1ec3 m\u00e0 ta quen thu\u1ed9c nh\u1ea5t. N\u00f3 l\u00e0 thi\u00ean th\u1ec3 trung t\u00e2m c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi, kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ea1t 2 t\u1ec9 t\u1ec9 t\u1ec9 t\u1ea5n, nhi\u1ec1u h\u01a1n 33 v\u1ea1n l\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a Tr\u00e1i \u0110\u1ea5t ch\u00fang ta, n\u00f3 l\u00e0 m\u1ed9t kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ed9c nh\u1ea5t chi\u1ebfm kho\u1ea3ng 99% t\u1ed5ng s\u1ed1 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a […]<\/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-6940","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\/6940","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=6940"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/6940\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=6940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=6940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=6940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}