{"id":7820,"date":"2022-07-25T00:00:00","date_gmt":"2022-07-24T23:00:00","guid":{"rendered":"https:\/\/instrid.sk\/uncategorized\/teleskop-jamesa-webba-poskodil-mikrometeoroid\/"},"modified":"2022-07-25T00:00:00","modified_gmt":"2022-07-24T23:00:00","slug":"teleskop-jamesa-webba-poskodil-mikrometeoroid","status":"publish","type":"post","link":"https:\/\/instrid.sk\/en\/archiv\/teleskop-jamesa-webba-poskodil-mikrometeoroid\/","title":{"rendered":"Teleskop Jamesa Webba po\u0161kodil mikrometeoroid"},"content":{"rendered":"<p>Vedci pracuj\u00faci s\u00a0vesm\u00edrnym teleskopom Jamesa Webba sa mo\u017eno bud\u00fa musie\u0165 za\u010da\u0165 vyh\u00fdba\u0165 \u010dast\u00e9mu nasmerovaniu teleskopu <strong>v\u00a0smere jeho orbit\u00e1lneho pohybu<\/strong>, aby <strong>minimalizovali riziko po\u0161kodenia zrkadla v\u00e4\u010d\u0161\u00edmi mikrometeoroidmy<\/strong>. O tomto obmedzen\u00ed uva\u017euj\u00fa pracovn\u00edci NASA, ktor\u00ed sa sna\u017eia zisti\u0165 smery, v ktor\u00fdch by teleskopu hrozili nebezpe\u010dn\u00e9 kol\u00edzie naj\u010dastej\u0161ie.<\/p>\n<p>Vesm\u00edrna agent\u00fara NASA vo svojej <strong>spolo\u010dnej spr\u00e1ve<\/strong> s\u00a0Kanadskou vesm\u00edrnou agent\u00farou a\u00a0Eur\u00f3pskou vesm\u00edrnou agent\u00farou op\u00edsala, \u017ee na prim\u00e1rnom zrkadle teleskopu zaznamenala <strong>\u0161es\u0165 \u201epovrchov\u00fdch deform\u00e1ci\u00ed\u201c sp\u00f4soben\u00fdch mikrometeoroidmi<\/strong>. Z t\u00fdchto 6 zr\u00e1\u017eok malo pod\u013ea spr\u00e1vy <strong>p\u00e4\u0165 zanedbate\u013en\u00e9 dopady<\/strong> na funkciu teleskopu. Celkovo malo do teleskopu <strong>medzi 23. m\u00e1jom a\u00a025. m\u00e1jom tohto roku<\/strong> narazi\u0165 a\u017e 19 mikrometeoroidov, z ktor\u00fdch ale <strong>v\u00e4\u010d\u0161ina nezanechala vidite\u013en\u00e9 stopy<\/strong>. So zr\u00e1\u017ekami navy\u0161e vedci pri kon\u0161truovan\u00ed po\u010d\u00edtali. Pod\u013ea predpokladov by sa podobn\u00e9 kol\u00edzie s\u00a0teleskopom mali <strong>vyskytn\u00fa\u0165 raz za mesiac<\/strong>.<\/p>\n Biela \u0161kvrna v pravom dolnom rohu prim\u00e1rneho zrkadla teleskopu ukazuje po\u0161kodenie sp\u00f4soben\u00e9 mikrometeoroidom [NASA\/ESA\/CSA]\n<h3>Mikrometeoroid narazil na prim\u00e1rneho zrkadla<\/h3>\n<p>Pr\u00e1ve posledn\u00fd, <strong>\u0161iesty, v\u00e4\u010d\u0161\u00ed meteoroid<\/strong>, ktor\u00fd po\u010das m\u00e1ja tohto roku vesm\u00edrny teleskop Jamesa Webba zasiahol, pokra\u010dovanie misie skomplikoval. Mikrometeoroid <strong>zasiahol jeden z\u00a018 segmentov hlavn\u00e9ho zrkadla teleskopu a\u00a0sp\u00f4sobil zna\u010dn\u00e9 \u0161kody<\/strong>. N\u00e1sledkom kol\u00edzie musel vedeck\u00fd t\u00edm upravi\u0165 polohu po\u0161koden\u00e9ho zrkadla, aby kompenzovala skreslenie \u00fadajov, ktor\u00e9 vzniklo v\u00a0d\u00f4sledku n\u00e1razu. Ke\u010f\u017ee sedemn\u00e1s\u0165 segmentov prim\u00e1rneho zrkadla zostalo nepo\u0161koden\u00fdch, <strong>in\u017einierom z vesm\u00edrnej agent\u00fary sa podarilo prestavi\u0165 jednotliv\u00e9 segmenty tak, aby nahradili v\u00e4\u010d\u0161inu po\u0161koden\u00fdch oblast\u00ed<\/strong>. NASA v\u0161ak uviedla, \u017ee nie je mo\u017en\u00e9 \u00faplne neutralizova\u0165 \u00fa\u010dinky n\u00e1razu a\u00a0ozn\u00e1mila, \u017ee teleskop <strong>utrpel \u201ev\u00fdznamn\u00fa neopravite\u013en\u00fa zmenu\u201c<\/strong>.<\/p>\n<h3>Funguje na\u010falej<\/h3>\n<p>Vzh\u013eadom na celkov\u00fa ve\u013ekos\u0165 prim\u00e1rneho zrkadla v\u0161ak vedci ozn\u00e1mili, \u017ee <strong>d\u00f4sledok n\u00e1razu nie je ve\u013emi v\u00e1\u017eny<\/strong> a\u00a0teleskop na\u010falej funguje dobre, len s <strong>\u201eokrajovo zistite\u013en\u00fdmi chybami v\u00a0\u00fadajoch\u201c<\/strong>. S\u00fa si teda ist\u00ed, \u017ee teleskop je aj na\u010falej st\u00e1le plne schopn\u00fd splni\u0165 svoje stanoven\u00e9 ciele misie. Taktie\u017e nevylu\u010duj\u00fa, \u017ee teleskop <strong>bude \u010deli\u0165 podobnej kol\u00edzii aj v\u00a0bud\u00facnosti<\/strong>. NASA uviedla, \u017ee ka\u017ed\u00e1 kozmick\u00e1 lo\u010f sa vo vesm\u00edre s mikrometeoroidmi nevyhnutne mus\u00ed stretn\u00fa\u0165.<\/p>\n Prim\u00e1rny reflektor teleskopu Jamesa Webba [NASA]\n<h3>Teleskop Jamesa Webba<\/h3>\n<p>Vesm\u00edrny teleskop v hodnote <strong>10 mili\u00e1rd dol\u00e1rov od\u0161tartoval 25. decembra minul\u00e9ho roku<\/strong> na rakete Ariane 5 z Franc\u00fazskej Guyany. Teleskop bol zostrojen\u00fd v r\u00e1mci spolupr\u00e1ce medzi <strong>americkou (NASA), eur\u00f3pskou (ESA) a kanadskou (CSA) vesm\u00edrnou agent\u00farou<\/strong>. Vo v\u00fdvoji bol \u010falekoh\u013ead viac ako 20 rokov a po\u010das nich \u010delil nieko\u013ek\u00fdm oneskoreniam.<\/p>\n<p>Teleskop pohybuj\u00faci sa <strong>1,5 mili\u00f3na kilometrov od Zeme<\/strong>, sa okrem pohonnej jednotky sklad\u00e1 z\u00a0vedeck\u00fdch v\u00fdpo\u010dtov\u00fdch zariaden\u00ed, sofistikovan\u00e9ho chladiaceho syst\u00e9mu a\u00a0dvoch zrkadiel. Prim\u00e1rny reflektor teleskopu Jamesa Webba tvor\u00ed <strong>6,5 metra \u0161irok\u00e9 pozl\u00e1ten\u00e9 zrkadlo<\/strong> a sklad\u00e1 sa z 18 pozl\u00e1ten\u00fdch \u0161es\u0165hrann\u00fdch segmentov, ktor\u00e9 sa daj\u00fa individu\u00e1lne nat\u00e1\u010da\u0165.<\/p>\n<h3>Jeho misia by mohla trva\u0165 a\u017e 20 rokov<\/h3>\n<p>Na z\u00e1klade doteraj\u0161ej spotreby paliva vedci vypo\u010d\u00edtali, \u017ee vesm\u00edrny\u00a0teleskop Jamesa Webba by <strong>mal vo vesm\u00edre vydr\u017ea\u0165 20 rokov<\/strong>. Nedok\u00e1\u017eu v\u0161ak predpoveda\u0165, ak\u00fd dopad na jeho prev\u00e1dzkyschopnos\u0165 bud\u00fa ma\u0165 \u010fal\u0161ie kol\u00edzie s mikrometeoroidmi.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #999999\">Zdroje: Technology News, Global News, Space.com, The Indian Express, Nature<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Vedci pracuj\u00faci s\u00a0vesm\u00edrnym teleskopom Jamesa Webba sa mo\u017eno bud\u00fa musie\u0165 za\u010da\u0165 vyh\u00fdba\u0165 \u010dast\u00e9mu nasmerovaniu teleskopu v\u00a0smere jeho orbit\u00e1lneho pohybu, aby minimalizovali riziko po\u0161kodenia zrkadla v\u00e4\u010d\u0161\u00edmi<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[],"class_list":["post-7820","post","type-post","status-publish","format-standard","hentry","category-archiv","two-columns"],"_links":{"self":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts\/7820","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/comments?post=7820"}],"version-history":[{"count":0,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts\/7820\/revisions"}],"wp:attachment":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/media?parent=7820"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/categories?post=7820"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/tags?post=7820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}