<\/p>\n
\n\t3I\/ATLAS, insanl\u0131k taraf\u0131ndan g\u00f6zlemlenen \u00fc\u00e7\u00fcnc\u00fc y\u0131ld\u0131zlararas\u0131 ziyaret\u00e7i olarak kay\u0131tlara ge\u00e7ti. G\u00fcne\u015f sistemine saniyede 58 kilometre (saatte 210 bin km) h\u0131zla giren kuyruklu y\u0131ld\u0131z\u0131n, 7 milyar y\u0131ldan uzun s\u00fcredir Samanyolu\u2019nun d\u0131\u015f b\u00f6lgelerinde dola\u015ft\u0131\u011f\u0131 tahmin ediliyor.<\/p>\n
\n\tTemmuz ay\u0131nda ke\u015ffedilen 3I\/ATLAS, Ekim ba\u015f\u0131nda Mars\u2019a yak\u0131n bir ge\u00e7i\u015f yapt\u0131ktan sonra G\u00fcne\u015f\u2019in arkas\u0131na ge\u00e7ti\u011fi i\u00e7in birka\u00e7 hafta boyunca D\u00fcnya\u2019dan g\u00f6zlemlenemedi. \u015eimdi ise tekrar g\u00f6r\u00fcn\u00fcr h\u00e2le geliyor.<\/p>\n
\n\tKuyruklu y\u0131ld\u0131z ilk g\u00f6zlemlendi\u011finde k\u0131rm\u0131z\u0131 bir parlakl\u0131\u011fa sahipti. Uzmanlar bunun, y\u00fczeyinden kopan yo\u011fun toz nedeniyle olu\u015ftu\u011funu belirtiyor.<\/p>\n
\n\tEyl\u00fcl ay\u0131nda ye\u015fil bir par\u0131lt\u0131 g\u00f6zlemlendi, bu da kuyruklu y\u0131ld\u0131z\u0131n atmosferinde siyan\u00fcr veya \u00e7ift karbon (C\u2082) gibi gazlar\u0131n varl\u0131\u011f\u0131na i\u015faret ediyordu.<\/p>\n
\n\tSon g\u00f6zlemlerdeyse kuyruklu y\u0131ld\u0131z\u0131n mavimsi bir \u0131\u015f\u0131lt\u0131 kazand\u0131\u011f\u0131 tespit edildi. Ara\u015ft\u0131rmac\u0131lar bunun muhtemelen karbon monoksit veya amonyak gaz\u0131n\u0131n s\u0131zmas\u0131ndan kaynakland\u0131\u011f\u0131n\u0131 d\u00fc\u015f\u00fcn\u00fcyor. Ancak bu g\u00f6zlemler hen\u00fcz hakem de\u011ferlendirmesinden ge\u00e7medi.<\/p>\n
\n\tKuyruklu y\u0131ld\u0131z, G\u00fcne\u015f\u2019e en yak\u0131n noktas\u0131na (130 milyon mil \/ 210 milyon km) 29 Ekim\u2019de ula\u015ft\u0131. Bu s\u0131rada ani bir parlama ve parlakl\u0131k art\u0131\u015f\u0131 ya\u015fand\u0131.<\/p>\n
\n\tBilim insanlar\u0131 bu art\u0131\u015f\u0131n nedenini hen\u00fcz a\u00e7\u0131klayam\u0131yor; G\u00fcne\u015f\u2019e yakla\u015fmak tek ba\u015f\u0131na bu kadar g\u00fc\u00e7l\u00fc bir reaksiyonu tetiklememeli.<\/p>\n
\n\t\u00d6n\u00fcm\u00fczdeki haftalarda 3I\/ATLAS, Kuzey Yar\u0131mk\u00fcre\u2019de teleskoplarla izlenebilecek kadar g\u00f6r\u00fcn\u00fcr h\u00e2le gelecek. Ancak \u00e7\u0131plak g\u00f6zle g\u00f6rmek m\u00fcmk\u00fcn olmayacak.<\/p>\n
\n\tKuyruklu y\u0131ld\u0131z, 19 Aral\u0131k\u2019ta D\u00fcnya\u2019ya en yak\u0131n konumuna (270 milyon km) ula\u015facak.<\/p>\n
\n\tAvrupa Uzay Ajans\u0131\u2019n\u0131n (ESA) iki uzay arac\u0131 da bu s\u00fcre\u00e7te kuyruklu y\u0131ld\u0131z\u0131n kuyru\u011fundan ge\u00e7ebilir \u2014 bu, g\u00f6k cisminin bile\u015fimini do\u011frudan \u00f6l\u00e7mek i\u00e7in e\u015fsiz bir f\u0131rsat olacak.<\/p>\n
\n\t3I\/ATLAS, \u015fimdiye kadar al\u0131\u015f\u0131lmad\u0131k bir\u00e7ok \u00f6zellik sergiledi: y\u00fcksek karbon dioksit oran\u0131, beklenenden fazla su buhar\u0131 sal\u0131n\u0131m\u0131 ve ters y\u00f6nde uzanan bir \u201canti-kuyruk\u201d<\/p>\n
\n\tBu s\u0131ra d\u0131\u015f\u0131 davran\u0131\u015flar nedeniyle baz\u0131 ara\u015ft\u0131rmac\u0131lar, cismin \u201cyapay\u201d bir k\u00f6kene sahip olabilece\u011fini \u00f6ne s\u00fcrd\u00fc. Ancak \u00e7o\u011fu bilim insan\u0131, 3I\/ATLAS\u2019\u0131n normal bir kuyruklu y\u0131ld\u0131z gibi davrand\u0131\u011f\u0131 g\u00f6r\u00fc\u015f\u00fcnde.<\/p>\n