Uzay\u0131n enginli\u011finde, uzay ara\u00e7lar\u0131 genellikle k\u0131ymetli yak\u0131ttan tasarruf etmek ve etkili bir \u015fekilde y\u00f6nlendirmek i\u00e7in yer\u00e7ekimi desteklerine, yani sapanlara g\u00fcvenirler. Gezegenlerin yer\u00e7ekimi kuvvetinden yararlanarak, uydular kendi itki g\u00fc\u00e7lerini harcamadan y\u00f6r\u00fcngelerini de\u011fi\u015ftirebilir ve ivme kazanabilirler.<\/p>\n\n
NASA taraf\u0131ndan 2016 y\u0131l\u0131nda f\u0131rlat\u0131lan OSIRIS-REx uzay arac\u0131, Bennu asteroitini incelemek i\u00e7in \u00e7\u0131\u011f\u0131r a\u00e7an bir g\u00f6reve ba\u015flad\u0131. 1600 fit geni\u015fli\u011findeki bu g\u00f6k cisminin, D\u00fcnya’daki ya\u015fam\u0131n k\u00f6kenleri hakk\u0131nda ipu\u00e7lar\u0131 i\u00e7erdi\u011fine inan\u0131l\u0131yor. Bilim insanlar\u0131, g\u00fcne\u015f sisteminin do\u011fu\u015fu s\u0131ras\u0131nda olu\u015fan g\u00f6kta\u015flar\u0131 olan karbonlu kondritlerin, erken ya\u015fama tohum olabilecek \u015fekilde gezegenimize su ve organik bile\u015fikler getirdi\u011fini d\u00fc\u015f\u00fcn\u00fcyorlar.<\/p>\n\n
D\u00fcnya’n\u0131nkine \u00e7ok benzeyen Bennu’nun y\u00f6r\u00fcngesi, onu OSIRIS-REx i\u00e7in ideal bir hedef haline getiriyordu. Ancak asteroide ula\u015fmak \u00f6nemli miktarda yak\u0131t gerektiriyordu. Kaynaklar\u0131 korumak i\u00e7in bilim insanlar\u0131 D\u00fcnya’n\u0131n yer\u00e7ekimini bir sapan olarak kullanma plan\u0131 yapt\u0131lar.<\/p>\n\n
Cuma g\u00fcn\u00fc, OSIRIS-REx D\u00fcnya’n\u0131n etraf\u0131nda dola\u015farak ivmesinde \u00f6nemli bir art\u0131\u015f elde etti. Man\u0435\u0432\u0440\u0430, D\u00fcnya’n\u0131n yer\u00e7ekimi kuvvetinden yararlanarak Bennu’ya do\u011fru saatte yakla\u015f\u0131k 19.000 mil h\u0131zla uydu f\u0131rlat\u0131lmas\u0131 dahildi. Bu sapan OSIRIS-REx’i sadece ileriye do\u011fru itmekle kalmad\u0131, ayn\u0131 zamanda y\u00f6r\u00fcngesini yakla\u015f\u0131k 6 derece e\u011ferek asteroiti yakalamak i\u00e7in do\u011fru yola soktu.<\/p>\n\n
Yer\u00e7ekimi deste\u011fi, uzay ara\u015ft\u0131rmalar\u0131nda yayg\u0131n bir tekniktir. \u00d6rne\u011fin, Voyager uydular\u0131, d\u00f6rt gaz devinin tamam\u0131ndan ivme kazanmak i\u00e7in d\u0131\u015f gezegenlerin nadir bir hizalanmas\u0131ndan yararland\u0131. Bize daha yak\u0131n olan Juno uydusu, D\u00fcnya’n\u0131n etraf\u0131nda s\u00fcz\u00fclerek saatte 8.800 mil h\u0131z deste\u011fi ald\u0131.<\/p>\n\n
Juno, sapan\u0131 s\u0131ras\u0131nda D\u00fcnya y\u00fczeyine sadece 347 mil yakla\u015f\u0131rken, OSIRIS-REx en yak\u0131n noktas\u0131nda Antarktika’n\u0131n yakla\u015f\u0131k 11.000 mil yukar\u0131s\u0131ndan ge\u00e7erek g\u00fcvenli bir mesafe korudu. Uydunun ekibi, muhte\u015fem olaya tan\u0131k olan g\u00f6zlemcilerden \u00e7evrimi\u00e7i olarak g\u00f6r\u00fcnt\u00fcler topluyor.<\/p>\n\n
Sapan manevras\u0131, OSIRIS-REx’in g\u00f6revinde \u00e7ok \u00f6nemli bir rol oynad\u0131. Yak\u0131ttan tasarruf sa\u011flayarak, uzay arac\u0131n\u0131n Bennu’ya yolculu\u011funa daha y\u00fcksek verimlilikle ba\u015flamas\u0131na olanak tan\u0131d\u0131. \u00d6n\u00fcm\u00fczdeki y\u0131l, OSIRIS-REx asteroiti inceleyecek, y\u00fczeyindeki tozu da\u011f\u0131tmak ve 2023’te D\u00fcnya’ya geri d\u00f6nmek \u00fczere \u00f6rnekler toplamak i\u00e7in bir gaz ak\u0131\u015f\u0131 kullanacak. Bu \u00f6rnekler, ya\u015fam\u0131n k\u00f6kenleri ve g\u00fcne\u015f sistemimizin olu\u015fumu hakk\u0131ndaki s\u0131rlar\u0131 a\u00e7\u0131\u011fa \u00e7\u0131karma potansiyeline sahip.<\/p>","protected":false},"excerpt":{"rendered":"
Uydu Sapan\u0131: OSIRIS-REx’in G\u00f6revini G\u00fc\u00e7lendirmek \u0130\u00e7in D\u00fcnya’n\u0131n Yer\u00e7ekimini Kullanmas\u0131 D\u00fcnya’n\u0131n Yer\u00e7ekimi: G\u00f6ksel Bir \u0130tici G\u00fc\u00e7 Uzay\u0131n enginli\u011finde, uzay ara\u00e7lar\u0131 genellikle k\u0131ymetli yak\u0131ttan tasarruf etmek ve etkili bir \u015fekilde y\u00f6nlendirmek i\u00e7in…<\/p>\n","protected":false},"author":1,"featured_media":23386,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[494],"tags":[1216,435,17652,97,17651,8014,434,667],"class_list":["post-13057","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-space-exploration","tag-astrobiology","tag-astronomy","tag-asteroid-bennu","tag-science","tag-earth-slingshot","tag-osiris-rex","tag-space-exploration","tag-origins-of-life"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/13057","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/comments?post=13057"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/13057\/revisions"}],"predecessor-version":[{"id":13058,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/13057\/revisions\/13058"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media\/23386"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media?parent=13057"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/categories?post=13057"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/tags?post=13057"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}