{"id":77591,"date":"2026-05-05T15:21:06","date_gmt":"2026-05-05T08:21:06","guid":{"rendered":"https:\/\/hbbgroup.net\/pht-hien-bat-ngo-o-ra-he-mat-troi\/"},"modified":"2026-05-05T15:21:06","modified_gmt":"2026-05-05T08:21:06","slug":"pht-hien-bat-ngo-o-ra-he-mat-troi","status":"publish","type":"post","link":"https:\/\/hbbgroup.net\/vi\/pht-hien-bat-ngo-o-ra-he-mat-troi\/","title":{"rendered":"Phát hi\u1ec7n b\u1ea5t ng\u1edd \u1edf rìa h\u1ec7 m\u1eb7t tr\u1eddi"},"content":{"rendered":"
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\"Astronomers<\/p>

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M\u00f4 ph\u1ecfng h\u00ecnh \u1ea3nh (612533) 2002 XV93 di chuy\u1ec3n ph\u00eda tr\u01b0\u1edbc m\u1ed9t ng\u00f4i sao n\u1ec1n<\/p>\n<\/figcaption>

\u1ea3nh: NAOJ<\/p>\n<\/figure>\n

H\u00e0ng ng\u00e0n thi\u00ean th\u1ec3 b\u0103ng \u0111\u00e1, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1c v\u1eadt th\u1ec3 n\u1eb1m ngo\u00e0i qu\u1ef9 \u0111\u1ea1o sao H\u1ea3i V\u01b0\u01a1ng (TNO), \u0111ang t\u1eadp k\u1ebft b\u00ean trong V\u00e0nh \u0111ai Kuiper<\/a> \u1edf r\u00eca h\u1ec7 m\u1eb7t tr\u1eddi. Ch\u00fang l\u00e0 t\u00e0n t\u00edch c\u00f2n s\u00f3t l\u1ea1i trong qu\u00e1 tr\u00ecnh Th\u00e1i D\u01b0\u01a1ng h\u1ec7 h\u00ecnh th\u00e0nh c\u00e1ch \u0111\u00e2y kho\u1ea3ng 4,5 t\u1ec9 n\u0103m.<\/p>\n

Trong s\u1ed1 n\u00e0y, h\u00e0nh tinh l\u00f9n Pluto (t\u00ean ti\u1ebfng Vi\u1ec7t l\u00e0 sao Di\u00eam V\u01b0\u01a1ng) l\u00e0 TNO l\u1edbn nh\u1ea5t.<\/p>\n

Nhi\u1ec7t \u0111\u1ed9 l\u1ea1nh gi\u00e1 v\u00e0 l\u1ef1c h\u1ea5p d\u1eabn b\u1ec1 m\u1eb7t y\u1ebfu c\u1ee7a c\u00e1c thi\u00ean th\u1ec3 nh\u1ecf t\u1eeb l\u00e2u khi\u1ebfn gi\u1edbi khoa h\u1ecdc cho r\u1eb1ng ch\u00fang kh\u00f4ng \u0111\u1ee7 n\u0103ng l\u1ef1c duy tr\u00ec kh\u00ed quy\u1ec3n<\/a>, ngo\u1ea1i tr\u1eeb Pluto hi\u1ec7n v\u1eabn c\u00f2n m\u1ed9t l\u1edbp kh\u00ed quy\u1ec3n m\u1ecfng.<\/p>\n

Kh\u00ed quy\u1ec3n, \u0111\u1eb7c bi\u1ec7t lo\u1ea1i d\u00e0y, th\u01b0\u1eddng h\u00ecnh th\u00e0nh xung quanh nh\u1eefng h\u00e0nh tinh ho\u1eb7c m\u1eb7t tr\u0103ng l\u1edbn, bao g\u1ed3m m\u1eb7t tr\u0103ng Titan c\u1ee7a sao Th\u1ed5.<\/p>\n

Trong khi \u0111\u00f3, c\u00e1c h\u00e0nh tinh l\u00f9n kh\u00e1c nh\u01b0 Eris, Haumea, Makemake v\u00e0 \u1ee9ng vi\u00ean h\u00e0nh tinh l\u00f9n Quaoar, TNO l\u1edbn th\u1ee9 hai ch\u1ec9 sau Pluto, kh\u00f4ng c\u00f3 kh\u00ed quy\u1ec3n.<\/p>\n

Tuy nhi\u00ean, trong m\u1ed9t c\u01a1 h\u1ed9i quan s\u00e1t hi\u1ebfm hoi, c\u00e1c nh\u00e0 thi\u00ean v\u0103n Nh\u1eadt B\u1ea3n \u0111\u00e3 ph\u00e1t hi\u1ec7n m\u1ed9t l\u1edbp kh\u00ed quy\u1ec3n m\u1ecfng bao quanh TNO c\u00f3 t\u00ean (612533) 2002 XV93<\/sub>, theo b\u00e1o c\u00e1o \u0111\u0103ng tr\u00ean chuy\u00ean san Nature Astronomy<\/i>.<\/p>\n

N\u1ebfu Pluto c\u00f3 \u0111\u01b0\u1eddng k\u00ednh 2.377 km, b\u1ec1 ngang 2002 XV93<\/sub> ch\u1ec9 kho\u1ea3ng 500 km.<\/p>\n

Kh\u00e1m ph\u00e1 b\u1ea5t ng\u1edd c\u1ee7a nh\u00f3m do ti\u1ebfn s\u0129 Ko Arimatsu v\u00e0 c\u00e1c \u0111\u1ed3ng nghi\u1ec7p t\u1ea1i \u0110\u00e0i thi\u00ean v\u0103n qu\u1ed1c gia Nh\u1eadt B\u1ea3n th\u1ef1c hi\u1ec7n h\u1ee9a h\u1eb9n mang l\u1ea1i c\u00e1i nh\u00ecn ch\u01b0a t\u1eebng c\u00f3 v\u1ec1 c\u00e1ch th\u1ee9c m\u1ed9t kh\u00ed quy\u1ec3n h\u00ecnh th\u00e0nh v\u00e0 t\u1ed3n t\u1ea1i quanh c\u00e1c thi\u00ean th\u1ec3 nh\u1ecf.<\/p>\n

Ph\u00e1t hi\u1ec7n m\u1edbi c\u0169ng c\u00f3 th\u1ec3 thay \u0111\u1ed5i nh\u1eadn th\u1ee9c c\u1ee7a gi\u1edbi khoa h\u1ecdc v\u1ec1 c\u00e1c thi\u00ean th\u1ec3 \u1edf V\u00e0nh \u0111ai Kuiper.<\/p>\n

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Phi thuy\u1ec1n Voyager ph\u00e1t hi\u1ec7n ‘m\u1ed9t b\u1ee9c t\u01b0\u1eddng l\u1eeda’ \u1edf r\u00eca h\u1ec7 m\u1eb7t tr\u1eddi<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

M\u00f4 ph\u1ecfng h\u00ecnh \u1ea3nh (612533) 2002 XV93 di chuy\u1ec3n ph\u00eda tr\u01b0\u1edbc m\u1ed9t ng\u00f4i sao n\u1ec1n \u1ea3nh: NAOJ H\u00e0ng ng\u00e0n thi\u00ean […]<\/p>","protected":false},"author":5,"featured_media":77592,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[95],"tags":[],"class_list":["post-77591","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc-the-gioi-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/posts\/77591","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/comments?post=77591"}],"version-history":[{"count":0,"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/posts\/77591\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/media\/77592"}],"wp:attachment":[{"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/media?parent=77591"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/categories?post=77591"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/tags?post=77591"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}