\n<\/p>\n
G\u00fcne\u015f<\/a> Sistemi\u2019ne en yak\u0131n \u00f6tegezegenler, k\u0131rm\u0131z\u0131 c\u00fcce y\u0131ld\u0131z Proxima Centauri\u2019nin y\u00f6r\u00fcngesinde yer al\u0131yor. Bu k\u00fc\u00e7\u00fck y\u0131ld\u0131z, G\u00fcne\u015f\u2019e benzeyen iki daha b\u00fcy\u00fck y\u0131ld\u0131zla (Alpha Centauri A ve Alpha Centauri B) birlikte ayn\u0131 sistemin par\u00e7as\u0131.<\/p>\n Y\u0131llard\u0131r bu y\u0131ld\u0131zlar\u0131n etraf\u0131nda gezegenler olabilece\u011fi d\u00fc\u015f\u00fcn\u00fcl\u00fcyordu ancak kesin bir kan\u0131t elde edilememi\u015fti. \u015eimdi ise yeni g\u00f6zlemler, Alpha Centauri A \u00e7evresinde bir gezegen olas\u0131l\u0131\u011f\u0131n\u0131 g\u00fc\u00e7lendirdi.<\/p>\n Alpha Centauri A’n\u0131n y\u00f6r\u00fcngesinde bulundu\u011fu d\u00fc\u015f\u00fcn\u00fclen bu gezegen aday\u0131, y\u0131ld\u0131z\u0131n ya\u015fanabilir b\u00f6lgesinde yer al\u0131yor. E\u011fer varl\u0131\u011f\u0131 do\u011frulan\u0131rsa, bu gezegen G\u00fcne\u015f\u2019e benzeyen bir y\u0131ld\u0131z\u0131n ya\u015fanabilir b\u00f6lgesinde ke\u015ffedilmi\u015f en yak\u0131n gezegen olacak.<\/p>\n Ancak bilim insanlar\u0131, bu gezegenin D\u00fcnya gibi kayal\u0131k de\u011fil, b\u00fcy\u00fck olas\u0131l\u0131kla Sat\u00fcrn b\u00fcy\u00fckl\u00fc\u011f\u00fcnde bir gaz devi oldu\u011funu d\u00fc\u015f\u00fcn\u00fcyor.<\/p>\n NASA \u00d6tegezegen Bilim Enstit\u00fcs\u00fc Direkt\u00f6r\u00fc ve \u00e7al\u0131\u015fman\u0131n ortak yazar\u0131 Charles Beichman, IFLScience\u2019a yapt\u0131\u011f\u0131 a\u00e7\u0131klamada, \u201cSadece 4 \u0131\u015f\u0131k y\u0131l\u0131 uzakl\u0131kta. Alpha Centauri, G\u00fcne\u015f\u2019imize en \u00e7ok benzeyen en yak\u0131n y\u0131ld\u0131z” dedi ve ekledi:<\/p>\n “Bu y\u0131ld\u0131za yak\u0131n olas\u0131 bir ya\u015fanabilir gezegenin varl\u0131\u011f\u0131, on y\u0131llard\u0131r hem bilim hem de bilimkurgu a\u00e7\u0131s\u0131ndan b\u00fcy\u00fck merak konusu. \u015eimdi elimizde g\u00fc\u00e7l\u00fc bir gezegen aday\u0131 var. Her ne kadar bu gezegenin kendisi ya\u015fanabilir olmasa da bu ke\u015fif, aray\u0131\u015fta \u00f6nemli bir d\u00f6n\u00fcm noktas\u0131.”<\/p>\n Ke\u015ffin ard\u0131nda, James Webb Uzay Teleskobu\u2019nun orta k\u0131z\u0131l\u00f6tesi g\u00f6zlem yetenekleri bulunuyor. Teleskop, y\u0131ld\u0131z\u0131n \u0131\u015f\u0131\u011f\u0131n\u0131 engellemek i\u00e7in koronagrafik maske diye bilinen bir teknik kullan\u0131yor. Ancak bu durumda en b\u00fcy\u00fck zorluk, yak\u0131n\u0131ndaki Alpha Centauri B\u2019nin \u0131\u015f\u0131\u011f\u0131n\u0131 da bast\u0131rmakt\u0131.<\/p>\n Ara\u015ft\u0131rma ekibi, her iki y\u0131ld\u0131z\u0131n \u0131\u015f\u0131\u011f\u0131n\u0131 veri i\u015flemeyle dikkatlice \u00e7\u0131kartarak, y\u0131ld\u0131zdan 10 bin kat daha s\u00f6n\u00fck olan gezegen sinyalini tespit etti.<\/p>\n Beichman, \u201cBu proje, teleskobun f\u0131rlat\u0131lmas\u0131ndan y\u0131llar \u00f6nce ba\u015flad\u0131. Farkl\u0131 uzmanl\u0131k alanlar\u0131ndan uluslararas\u0131 bir ekip, g\u00f6zlemleri planlad\u0131, verileri i\u015fledi ve sonu\u00e7lar\u0131 yorumlad\u0131” diye konu\u015ftu.<\/p>\n “James Webb teleskobunun ola\u011fan\u00fcst\u00fc kararl\u0131l\u0131\u011f\u0131 ve hassasiyeti, bu kadar s\u00f6n\u00fck bir hedefin ortaya \u00e7\u0131kar\u0131lmas\u0131n\u0131 m\u00fcmk\u00fcn k\u0131ld\u0131.”<\/p>\n E\u011fer bu gezegen do\u011frulan\u0131rsa, G\u00fcne\u015f\u2019e benzeyen bir y\u0131ld\u0131z etraf\u0131nda do\u011frudan g\u00f6r\u00fcnt\u00fclenen ilk gezegen ve \u015fimdiye kadar ke\u015ffedilen en yak\u0131n \u00f6tegezegen olacak.<\/p>\nYA\u015eANAB\u0130L\u0130R B\u00d6LGEDE<\/strong><\/h3>\n
KE\u015eF\u0130N ARDINDA \u00dcNL\u00dc TELESKOP VAR<\/strong><\/h3>\n