{"id":89,"date":"2024-12-05T10:25:24","date_gmt":"2024-12-05T09:25:24","guid":{"rendered":"https:\/\/kids.esa.int\/proba-3_when_two_satellites_are_better_than_one\/"},"modified":"2026-10-08T00:23:58","modified_gmt":"2026-10-07T22:23:58","slug":"proba-3_when_two_satellites_are_better_than_one","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/ro\/proba-3_when_two_satellites_are_better_than_one\/","title":{"rendered":"Proba-3: c\u00e2nd doi sateli\u021bi sunt mai buni dec\u00e2t unul singur"},"content":{"rendered":"<p>Ce-ar fi dac\u0103 doi sateli\u021bi ar putea pluti \u00een spa\u021biu, la o distan\u021b\u0103 de 144 de metri unul de cel\u0103lalt, dar ar colabora at\u00e2t de perfect \u00eenc\u00e2t s\u0103 se comporte ca o singur\u0103 ma\u0219in\u0103rie gigantic\u0103? Acesta este obiectivul noii misiuni Proba-3 a ESA, care tocmai a fost lansat\u0103 \u00een misiunea de a dezv\u0103lui secretele Soarelui nostru!\u00a0<\/p>\n<p><b>Soarele nostru misterios\u00a0<\/b><\/p>\n<p>Ai asistat vreodat\u0103 la o eclips\u0103 solar\u0103? C\u00e2nd Luna acoper\u0103 Soarele, aceasta dezv\u0103luie atmosfera exterioar\u0103 slab luminoas\u0103 a Soarelui, numit\u0103 coroan\u0103. Aceast\u0103 regiune misterioas\u0103 are o temperatur\u0103 cu milioane de grade mai ridicat\u0103 dec\u00e2t suprafa\u021ba Soarelui \u2014 o enigm\u0103 pe care oamenii de \u0219tiin\u021b\u0103 \u00eencearc\u0103 s\u0103 o dezlege. Din coroan\u0103 izbucnesc, de asemenea, explozii uria\u0219e numite ejec\u021bii de mas\u0103 coronal\u0103, care cauzeaz\u0103 probleme astronau\u021bilor, sateli\u021bilor \u0219i chiar re\u021belelor electrice de pe P\u0103m\u00e2nt. Cu toate acestea, coroana este de un milion de ori mai slab\u0103 dec\u00e2t Soarele \u0219i este vizibil\u0103 doar c\u00e2teva minute \u00een timpul unei eclipse solare. Acest lucru face ca studierea ei s\u0103 fie foarte dificil\u0103.\u00a0<br \/>\u00a0<br \/>V\u0103 prezent\u0103m misiunea Proba-3! Este vorba despre o pereche de sateli\u021bi care vor \u00eencepe \u00een cur\u00e2nd s\u0103 colaboreze pentru a rezolva aceast\u0103 provocare.\u00a0<\/p>\n<ul>\n<li>\n<p>Satelitul \u201eOcculter\u201d este prev\u0103zut cu un disc circular de mari dimensiuni menit s\u0103 blocheze lumina orbitoare a Soarelui, cre\u00e2nd astfel o eclips\u0103 artificial\u0103 care va fi observat\u0103 de satelitul s\u0103u partener.\u00a0<\/p>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<p>Satelitul Coronagraph este echipat cu un telescop special pentru a studia \u00een detaliu coroana solar\u0103.\u00a0\u00a0<\/p>\n<\/li>\n<\/ul>\n<p>\u00cempreun\u0103, ace\u0219ti sateli\u021bi inovatori vor genera eclipse de lung\u0103 durat\u0103 \u00een spa\u021biu, permi\u021b\u00e2nd oamenilor de \u0219tiin\u021b\u0103 s\u0103 observe coroana solar\u0103 timp de p\u00e2n\u0103 la \u0219ase ore la r\u00e2nd!\u00a0<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"6336\" data-credit=\"ESA - P. Sebirot\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2024\/04\/Proba-3_Occulter_and_Coronagraph_spacecraft\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2024\/04\/proba-3_occulter_and_coronagraph_spacecraft\/26009762-1-eng-GB\/Proba-3_Occulter_and_Coronagraph_spacecraft.jpg\" alt=\"Proba-3 Occulter and Coronagraph spacecraft\"><figcaption>Nava spa\u021bial\u0103 Proba-3, echipat\u0103 cu un dispozitiv de ocultare \u0219i un coronograf<\/figcaption><\/figure>\n<p><b>3, 2, 1 \u2013 decolare!\u00a0<\/b><\/p>\n<p>Lansarea a doi sateli\u021bi \u00een spa\u021biu nu a fost u\u0219oar\u0103, dar ESA a planificat totul la perfec\u021bie. Proba-3 a fost lansat la bordul puternicei rachete indiene PSLV-XL de la Centrul Spa\u021bial Satish Dhawan, un cosmodrom renumit din India.\u00a0<br \/>\u00a0<br \/>Ajun\u0219i acum \u00een siguran\u021b\u0103 \u00een spa\u021biu, cei doi sateli\u021bi se \u00eendreapt\u0103 c\u0103tre o orbit\u0103 care se \u00eentinde la 60.000 de kilometri distan\u021b\u0103 de P\u0103m\u00e2nt \u2013 suficient de departe pentru a avea o vedere perfect\u0103 \u0219i ne\u00eentrerupt\u0103 asupra Soarelui. Dup\u0103 o scurt\u0103 perioad\u0103 de configurare, sateli\u021bii \u00ee\u0219i vor \u00eencepe incredibilul \u201cbalet spa\u021bial\u201d, zbur\u00e2nd \u00een forma\u021bie pentru a-\u0219i desf\u0103\u0219ura experimentele.\u00a0<br \/>\u00a0<br \/>A urm\u0103ri cum Proba-3 a p\u0103r\u0103sit P\u0103m\u00e2ntul \u00een c\u0103l\u0103toria sa de a studia Soarele a fost un eveniment emo\u021bionant pentru pasiona\u021bii de spa\u021biu din \u00eentreaga lume. \u00cen cur\u00e2nd, va \u00eencepe adev\u0103rata cercetare \u0219tiin\u021bific\u0103!\u00a0<\/p>\n<p><i><b>Un fapt interesant:<\/b> Proba-3 seam\u0103n\u0103 cu un dans spa\u021bial coregrafiat cu mare aten\u021bie, cei doi sateli\u021bi zbur\u00e2nd la o distan\u021b\u0103 exact\u0103 de 144 de metri unul de cel\u0103lalt, cu o precizie de doar c\u00e2\u021biva milimetri. Aceasta o face s\u0103 fie prima misiune din lume de zbor \u00een forma\u021bie de precizie!\u00a0<\/i><\/p>","protected":false},"excerpt":{"rendered":"<p>What if two satellites could float in space, 144 meters apart, but work together so perfectly that they behave like one giant machine? That is the goal of ESA\u2019s new [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2024\/11\/proba-3_occulter_eclipsing_sun_for_coronagraph_spacecraft\/26474797-1-eng-GB\/Proba-3_Occulter_eclipsing_Sun_for_Coronagraph_spacecraft.jpg","esa_banner_description":"Proba-3 Occulter eclipsing Sun for Coronagraph spacecraft","esa_banner_credit":"ESA-P. 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