{"id":47398,"date":"2014-10-14T05:06:45","date_gmt":"2014-10-14T03:06:45","guid":{"rendered":"http:\/\/stockportal.hu\/?p=47398"},"modified":"2014-10-13T19:28:00","modified_gmt":"2014-10-13T17:28:00","slug":"ustokossel-randevuzik-vasarnap-a-mars","status":"publish","type":"post","link":"https:\/\/gazdasagportal.hu\/index.php\/ustokossel-randevuzik-vasarnap-a-mars\/","title":{"rendered":"\u00dcst\u00f6k\u00f6ssel &#8222;randev\u00fazik&#8221; vas\u00e1rnap a Mars"},"content":{"rendered":"<p><strong>\u00dcst\u00f6k\u00f6ssel &#8222;randev\u00fazik&#8221;\u00a0\u00a0vas\u00e1rnap, okt\u00f3ber 19-\u00e9n a Mars, a kom\u00e9ta mind\u00f6ssze 139 500 kilom\u00e9terre rep\u00fcl el a v\u00f6r\u00f6s bolyg\u00f3 mellett.<\/strong><br \/>\n<div class=\"ads-in-post1\"><div id=\"gazdasagportal.hu_fullbanner_wideboard\"><\/div>\r\n<\/div>\n<p>A C\/2013 A1 (Siding Spring) a Naprendszer k\u00fcls\u0151 tartom\u00e1ny\u00e1b\u00f3l, az 50-100000 csillag\u00e1szati egys\u00e9gnyire l\u00e9v\u0151, \u00fagynevezett Oort-felh\u0151b\u0151l \u00e9rkezik, ahol milli\u00e1rdnyi \u00fcst\u00f6k\u00f6smag kering. Ezek a jeges objektumok a 4,6 milli\u00e1rd \u00e9ve sz\u00fcletett Naprendszer &#8222;t\u00f6rmel\u00e9kanyaga&#8221; &#8211; olvashat\u00f3 a NASA honlapj\u00e1n.<br \/>\nAz \u00fcst\u00f6k\u00f6s okt\u00f3ber 19-\u00e9n k\u00f6z\u00e9p-eur\u00f3pai id\u0151 szerint 20 \u00f3ra 27 perckor k\u00f6zel\u00edti meg a legkisebb t\u00e1vols\u00e1gra a Marsot, amikor a v\u00f6r\u00f6s bolyg\u00f3t\u00f3l 139 500 kilom\u00e9ter v\u00e1lasztja el. Ez a F\u00f6ld-Hold t\u00e1vols\u00e1g fele, \u00e9s alig egytizede annak a t\u00e1vols\u00e1gnak, amelyre bolyg\u00f3nkat eddig az \u00fcst\u00f6k\u00f6s\u00f6k megk\u00f6zel\u00edtett\u00e9k. Az \u00e9gitest sebess\u00e9ge 56 kilom\u00e9ter m\u00e1sodpercenk\u00e9nt.<br \/>\nA rendk\u00edv\u00fcli k\u00f6zels\u00e9g igen kedvez\u0151 lehet\u0151s\u00e9get biztos\u00edt a megfigyel\u00e9sekhez. &#8222;Kozmikus aj\u00e1nd\u00e9k sz\u00e1munkra ez az \u00fcst\u00f6k\u00f6s, amely m\u00e9g sohasem j\u00e1rt a Naprendszer bels\u0151 r\u00e9gi\u00f3iban. \u00cdgy friss adatokkal szolg\u00e1l Naprendszer\u00fcnk korai gyermekkor\u00e1r\u00f3l&#8221; &#8211; hangs\u00falyozta John Grunsfeld asztronauta, a NASA tudom\u00e1nyos k\u00fcldet\u00e9sek igazgat\u00f3s\u00e1g\u00e1nak vezet\u0151je.<br \/>\nA Siding Spring nagy portartalma mindazon\u00e1ltal vesz\u00e9lyt jelent a v\u00f6r\u00f6s bolyg\u00f3 k\u00f6r\u00fcl kering\u0151 amerikai \u0171rszond\u00e1k, a Mars Odyssey, a Mars Reconnaissance Orbiter, valamint a k\u00f6zelm\u00faltban a NASA marsi &#8222;flott\u00e1j\u00e1hoz&#8221; csatlakozott l\u00e9gk\u00f6rmegfigyel\u0151 MAVEN sz\u00e1m\u00e1ra. Egy porban igen gazdag \u00fcst\u00f6k\u00f6sr\u0151l van ugyanis sz\u00f3, \u00e9s ahogy az \u00e9gitest k\u00f6zeledik a Naphoz, n\u0151 a g\u00e1z- \u00e9s porkibocs\u00e1t\u00f3 aktivit\u00e1sa, sok meteoritikus anyag sz\u00f3r\u00f3dik ki.<br \/>\nA legvesz\u00e9lyesebb id\u0151szak a legnagyobb k\u00f6zels\u00e9g ut\u00e1n m\u00e1sf\u00e9l \u00f3r\u00e1val kezd\u0151dik \u00e9s 20 percen \u00e1t tart. A &#8222;randev\u00fara&#8221; k\u00e9sz\u00fclve a NASA ez\u00e9rt man\u0151vereket hajt v\u00e9gre az \u0171rszond\u00e1kkal, hogy elker\u00fclj\u00e9k a vesz\u00e9lyt. A Mars l\u00e9gk\u00f6re, b\u00e1r sokkal v\u00e9konyabb, mint a F\u00f6ld\u00e9, megv\u00e9di a k\u00e9t amerikai marsj\u00e1r\u00f3t, az Opportunity-t \u00e9s a Curiosity-t a meteoritokt\u00f3l.<br \/>\nA marsi l\u00e9gk\u00f6r megfigyel\u00e9se sor\u00e1n vizsg\u00e1lj\u00e1k az esetlegesen becsap\u00f3d\u00f3 meteoritok p\u00e1lya\u00edv\u00e9t, a semleges \u00e9s t\u00f6lt\u00f6tt r\u00e9szecsk\u00e9k megoszl\u00e1s\u00e1t, valamint azt, hogy mik\u00e9nt hat az \u00fcst\u00f6k\u00f6s a l\u00e9gk\u00f6r h\u0151m\u00e9rs\u00e9klet\u00e9re \u00e9s a felh\u0151kre. A f\u00f6ldi telep\u00edt\u00e9s\u0171 teleszk\u00f3pok \u00e9s csillag\u00e1szati m\u0171holdak, bele\u00e9rtve a NASA ikonikus \u0171rt\u00e1vcs\u00f6v\u00e9t, a Hubble-t, szint\u00e9n v\u00e9geznek megfigyel\u00e9seket. A felv\u00e9teleket \u00e9s az adatokat a NASA folyamatosan friss\u00edteni fogja a honlapj\u00e1n.<\/p>\n<p><strong><a title=\"Hely megnyit\u00e1sa\" href=\"http:\/\/www.nasa.gov\/press\/2014\/october\/nasa-prepares-its-science-fleet-for-oct-19-mars-comet-encounter\/\" target=\"_blank\" rel=\"noopener\">http:\/\/www.nasa.gov\/press\/2014\/october\/nasa-prepares-its-science-fleet-for-oct-19-mars-comet-encounter\/<\/a><\/strong><\/p>\n<p>&nbsp;<\/p><div id=\"gazda-2798649688\" class=\"gazda-tartalomban gazda-entity-placement\"><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-6t+ed+2i-1n-4w\"\r\n     data-ad-client=\"ca-pub-1959107119989764\"\r\n     data-ad-slot=\"4008251320\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u00dcst\u00f6k\u00f6ssel &#8222;randev\u00fazik&#8221;\u00a0\u00a0vas\u00e1rnap, okt\u00f3ber 19-\u00e9n a Mars, a kom\u00e9ta mind\u00f6ssze 139 500 kilom\u00e9terre rep\u00fcl el a v\u00f6r\u00f6s bolyg\u00f3 mellett. A C\/2013 A1 (Siding Spring) a Naprendszer k\u00fcls\u0151 tartom\u00e1ny\u00e1b\u00f3l, az 50-100000 csillag\u00e1szati egys\u00e9gnyire l\u00e9v\u0151, \u00fagynevezett Oort-felh\u0151b\u0151l \u00e9rkezik, ahol milli\u00e1rdnyi \u00fcst\u00f6k\u00f6smag kering. Ezek a jeges objektumok a 4,6 milli\u00e1rd \u00e9ve sz\u00fcletett Naprendszer &#8222;t\u00f6rmel\u00e9kanyaga&#8221; &#8211; olvashat\u00f3 a NASA honlapj\u00e1n. &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[],"_links":{"self":[{"href":"https:\/\/gazdasagportal.hu\/index.php\/wp-json\/wp\/v2\/posts\/47398"}],"collection":[{"href":"https:\/\/gazdasagportal.hu\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gazdasagportal.hu\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gazdasagportal.hu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gazdasagportal.hu\/index.php\/wp-json\/wp\/v2\/comments?post=47398"}],"version-history":[{"count":1,"href":"https:\/\/gazdasagportal.hu\/index.php\/wp-json\/wp\/v2\/posts\/47398\/revisions"}],"predecessor-version":[{"id":47399,"href":"https:\/\/gazdasagportal.hu\/index.php\/wp-json\/wp\/v2\/posts\/47398\/revisions\/47399"}],"wp:attachment":[{"href":"https:\/\/gazdasagportal.hu\/index.php\/wp-json\/wp\/v2\/media?parent=47398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gazdasagportal.hu\/index.php\/wp-json\/wp\/v2\/categories?post=47398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gazdasagportal.hu\/index.php\/wp-json\/wp\/v2\/tags?post=47398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}