{"id":32510,"date":"2019-02-19T01:01:24","date_gmt":"2019-02-18T22:01:24","guid":{"rendered":"https:\/\/bilimvegelecek.com.tr\/?p=32510"},"modified":"2019-02-18T19:41:44","modified_gmt":"2019-02-18T16:41:44","slug":"yildiz-kaymasi-nedir","status":"publish","type":"post","link":"https:\/\/bilimvegelecek.com.tr\/index.php\/2019\/02\/19\/yildiz-kaymasi-nedir","title":{"rendered":"Y\u0131ld\u0131z kaymas\u0131 nedir?"},"content":{"rendered":"

\u0130nsanl\u0131\u011f\u0131n, ba\u015f\u0131n\u0131 kald\u0131r\u0131p g\u00f6\u011fe bakmaya ba\u015flad\u0131\u011f\u0131 ilk \u00e7a\u011flardan beri ilgisini \u00e7eken do\u011fa olaylardan biri hi\u00e7 \u015f\u00fcphesiz y\u0131ld\u0131z kaymas\u0131 gelir. Sakin ve bulutsuz bir gecede aniden parlay\u0131p uzayan ve hemen s\u00f6n\u00fcveren bir \u0131\u015f\u0131k huzmesi\u2026 Bunun neden oldu\u011funa ve neleri do\u011furaca\u011f\u0131na ili\u015fkin her dinde ve k\u00fclt\u00fcrde baz\u0131 do\u011fa\u00fcst\u00fc yan\u0131tlar da verilmi\u015ftir.<\/p>\n

Bundan birka\u00e7 y\u00fczy\u0131l \u00f6ncesine kadar y\u0131ld\u0131z kaymas\u0131n\u0131n neden ve nas\u0131l oldu\u011funa ili\u015fkin net bir bilgi sahibi de\u011fildik. Y\u0131ld\u0131z kaymas\u0131n\u0131n ne oldu\u011funa ili\u015fkin detayl\u0131 bir a\u00e7\u0131klama i\u00e7in \u00c7a\u011flar Sunay\u2019\u0131n 50 Soruda Evren<\/em><\/a> kitab\u0131ndaki (1) \u015fu b\u00f6l\u00fcme g\u00f6z atabiliriz:<\/p>\n

Y\u0131ld\u0131z kaymas\u0131 nedir?<\/strong>
\nG\u00f6ky\u00fcz\u00fcn\u00fcn a\u00e7\u0131k oldu\u011fu bir gece, \u0131\u015f\u0131k kirlili\u011finin de olmad\u0131\u011f\u0131 bir yerde, g\u00f6ky\u00fcz\u00fcnde y\u0131ld\u0131z kaymas\u0131 g\u00f6rme olas\u0131l\u0131\u011f\u0131n\u0131z y\u00fcksektir. Halk aras\u0131nda \u201cakan y\u0131ld\u0131z\u201d ya da \u201ckayan y\u0131ld\u0131z\u201d diye adland\u0131r\u0131lan bu \u0131\u015f\u0131k g\u00f6sterisine bilim insanlar\u0131 meteor der. Meteorlar\u0131n olu\u015fmas\u0131na yol a\u00e7anlar, y\u0131ld\u0131zlar de\u011fildir. Asl\u0131nda meteor uzayda de\u011fil, atmosferde -yerden 75 km ile 100 km aras\u0131 y\u00fckseklikte- ger\u00e7ekle\u015fen bir \u0131\u015f\u0131k olay\u0131d\u0131r. Her g\u00fcn D\u00fcnya\u2019ya bin tonun \u00fczerinde uzay tozu ve minik g\u00f6kta\u015f\u0131 \u201cd\u00f6k\u00fcl\u00fcr\u201d. Bunlar\u0131n, \u00e7ap\u0131 10 m\u2019ye kadar olanlar\u0131na meteoroit denir. Meteoroitler, asteroit ya da kuyrukluy\u0131ld\u0131zlardan kopan par\u00e7alard\u0131r. Bunlar\u0131n aras\u0131nda birka\u00e7 milimetre ile birka\u00e7 santimetre \u00e7ap\u0131nda olanlar, saatte 10.000 km ile 70.000 km aras\u0131nda bir h\u0131zla atmosfere girip renkli ve \u00e7ok parlak \u0131\u015f\u0131klar \u00e7\u0131kararak \u201cyanar\u201d ve buharla\u015f\u0131rlar. Atmosferin bir par\u00e7as\u0131 olurlar. Geceleri \u201cy\u0131ld\u0131z kaymas\u0131\u201d olarak g\u00f6rd\u00fcklerimiz, i\u015fte bu parlamalard\u0131r. Meteoroitlerin i\u00e7erdi\u011fi maddelerin t\u00fcr\u00fcne g\u00f6re meteorun rengi de\u011fi\u015fir. E\u011fer atmosfere giren meteoroit daha b\u00fcy\u00fckse, yanma s\u00fcresi -yani g\u00f6ky\u00fcz\u00fcnde g\u00f6r\u00fcnme s\u00fcresi- daha uzun olur ve daha parlak g\u00f6r\u00fcn\u00fcr. Boyutlar\u0131 metrelerle \u00f6l\u00e7\u00fclenler, k\u00fctlelerinin b\u00fcy\u00fck b\u00f6l\u00fcm\u00fcn\u00fc atmosferde yitirmelerine kar\u015f\u0131n, yery\u00fcz\u00fcne ula\u015fabilir. Bunlar da genellikle okyanuslara ya da insan yerle\u015fiminin olmad\u0131\u011f\u0131 bo\u015f alanlara d\u00fc\u015fer.(*) Yery\u00fcz\u00fcne her g\u00fcn d\u00fc\u015fen binlerce minik meteoridin aras\u0131nda ortalama bir tane 40 cm \u00e7ap\u0131nda meteorit olur; yery\u00fcz\u00fcne ula\u015fabilen meteoroitlere meteorit denir. Y\u0131lda ortalama bir tane 4 m \u00e7ap\u0131nda ve y\u00fczy\u0131lda bir de 20 m \u00e7ap\u0131nda meteorit D\u00fcnya\u2019ya \u00e7arpar. Yery\u00fcz\u00fcne d\u00fc\u015fen -\u00e7arpan- g\u00f6kta\u015flar\u0131n\u0131n b\u00fcy\u00fckl\u00fckleriyle d\u00fc\u015fme s\u0131kl\u0131klar\u0131 ters orant\u0131l\u0131d\u0131r. \u00c7ap\u0131 300 m\u2019den b\u00fcy\u00fck asteroitlerden her 2 milyon y\u0131lda bir tane D\u00fcnya\u2019ya \u00e7arpar ve \u00e7ap\u0131 yakla\u015f\u0131k 5 km\u2019lik bir krater olu\u015fturman\u0131n yan\u0131 s\u0131ra, d\u00fc\u015ft\u00fc\u011f\u00fc b\u00f6lgede (y\u00fcz binlerce kilometrekarelik bir alanda) b\u00f6lgesel bir y\u0131k\u0131ma yol a\u00e7ar.<\/p>\n

\"\"
Her y\u0131l 12-13 A\u011fustos tarihlerinde Perseid meteor ya\u011fmuru en \u00fcst d\u00fczeye \u00e7\u0131kar. Bu gecelerde \u0131\u015f\u0131k kirlili\u011finin olmad\u0131\u011f\u0131 b\u00f6lgelerde, saatte ortalama 50 kayan y\u0131ld\u0131z g\u00f6rmek olas\u0131d\u0131r. Perseid meteor ya\u011fmuruna Swift-Tuttle kuyrukluy\u0131ld\u0131z\u0131n\u0131n geride b\u0131rakt\u0131\u011f\u0131 d\u00f6k\u00fcnt\u00fcler yol a\u00e7ar. Lewis Swift ve Horace Tuttle taraf\u0131ndan, birbirlerinden ba\u011f\u0131ms\u0131z olarak, 1862\u2019de ke\u015ffedilen bu kuyrukluy\u0131ld\u0131z\u0131n periyodu 135 y\u0131ld\u0131r.<\/figcaption><\/figure>\n

Y\u0131l\u0131n belli gecelerinde y\u0131ld\u0131z kaymas\u0131 say\u0131s\u0131nda art\u0131\u015f olur. Bunlar Ay\u2019\u0131n ve \u0131\u015f\u0131k kirlili\u011finin olmad\u0131\u011f\u0131 yerlerden izlendi\u011finde, ger\u00e7ekten de \u00e7ok etkileyici g\u00f6r\u00fcnt\u00fcler sunar. Bu olaylara meteor ya\u011fmuru denir. B\u00f6yle gecelerde saatte ortalama 20-100 kayan y\u0131ld\u0131z g\u00f6rebilirsiniz. Bunun nedeni, o s\u0131rada D\u00fcnya\u2019n\u0131n uzay\u0131n meteoroitlerle dolu bir b\u00f6lgesinden ge\u00e7iyor olmas\u0131d\u0131r. Meteoroitlerle dolu b\u00f6lgeler, asl\u0131nda bir zamanlar baz\u0131 kuyrukluy\u0131ld\u0131zlar\u0131n ge\u00e7ti\u011fi ve kuyruklar\u0131ndaki d\u00f6k\u00fcnt\u00fcleri geride b\u0131rakt\u0131\u011f\u0131 y\u00f6r\u00fcngelerdir.<\/p>\n

G\u00f6kbilimciler kuyrukluy\u0131ld\u0131zlara \u201ckirli kartoplar\u0131\u201d da der. \u00c7\u00fcnk\u00fc bir kuyrukluy\u0131ld\u0131z\u0131n b\u00fcy\u00fck b\u00f6l\u00fcm\u00fcn\u00fc buz ve k\u00fc\u00e7\u00fck kaya par\u00e7alar\u0131, ta\u015flar ve toz olu\u015fturur. Kuyrukluy\u0131ld\u0131z, y\u00f6r\u00fcngesinin G\u00fcne\u015f\u2019e uzak b\u00f6lgelerindeyken bu i\u00e7erik, donmu\u015f bir halde birbirine s\u0131k\u0131 \u015fekilde ba\u011fl\u0131 durur. Kuyrukluy\u0131ld\u0131z G\u00fcne\u015f\u2019e yakla\u015ft\u0131k\u00e7a buz erir ve buharla\u015f\u0131r. Kuyrukluy\u0131ld\u0131z\u0131 olu\u015fturan madde art\u0131k gev\u015fek bir \u015fekilde bir aradad\u0131r. Zamanla k\u00fc\u00e7\u00fck ta\u015flar ve tozlar da gazlarla birlikte ana k\u00fctleden geride kal\u0131r ve kuyrukluy\u0131ld\u0131z\u0131n milyonlarca kilometre uzunluktaki kuyru\u011funu olu\u015fturur. Kuyruktaki bu par\u00e7alardan bir b\u00f6l\u00fcm\u00fc kuyrukluy\u0131ld\u0131zla ba\u011f\u0131n\u0131 kopar\u0131p y\u00f6r\u00fcnge \u00fczerinde kal\u0131r. B\u00f6ylece t\u0131pk\u0131 gezegenler ve kuyrukluy\u0131ld\u0131zlar gibi bu d\u00f6k\u00fcnt\u00fcler de G\u00fcne\u015f\u2019in \u00e7evresinde d\u00f6nmeye ba\u015flar. Ne zaman D\u00fcnya, d\u00f6k\u00fcnt\u00fclerle kapl\u0131 bu y\u00f6r\u00fcngelerden birinin i\u00e7inden ge\u00e7se, o g\u00fcn D\u00fcnya\u2019ya her zamankinden daha \u00e7ok say\u0131da meteoroit d\u00fc\u015fer! Yani daha \u00e7ok kayan y\u0131ld\u0131z g\u00f6r\u00fcl\u00fcr. E\u011fer kuyrukluy\u0131ld\u0131z birka\u00e7 ay ya da birka\u00e7 y\u0131l gibi k\u0131sa bir s\u00fcre \u00f6nce ge\u00e7mi\u015fse, arkas\u0131nda bol miktarda yeni d\u00f6k\u00fcnt\u00fc b\u0131rakm\u0131\u015f olur. D\u00fcnya b\u00f6ylesi bir y\u00f6r\u00fcngenin i\u00e7inden ge\u00e7erken meteor say\u0131s\u0131nda s\u0131ra d\u0131\u015f\u0131 bir art\u0131\u015f olur. Bu \u00f6zel gecelerde, saatte binlerce y\u0131ld\u0131z kaymas\u0131 g\u00f6zlemlenebilir. Bu olaya meteor f\u0131rt\u0131nas\u0131 denir.<\/p>\n

Kayan y\u0131ld\u0131zlar kadar s\u0131k olmasa da, birka\u00e7 y\u0131lda bir G\u00fcne\u015f Sistemi\u2019nin i\u00e7 b\u00f6lgelerine giren kuyrukluy\u0131ld\u0131zlar da geceleri g\u00f6ky\u00fcz\u00fcnde etkileyici bir g\u00f6r\u00fcnt\u00fc olu\u015fturur, hem de uzun bir s\u00fcre. K\u00fc\u00e7\u00fck \u00e7ekirdeklerinin \u00e7evresi yakla\u015f\u0131k 100.000 km \u00e7apl\u0131 parlak bir gaz ve toz bulutuyla kaplan\u0131r. Kuyrukluy\u0131ld\u0131z b\u00fcy\u00fckse, arkas\u0131nda (G\u00fcne\u015f\u2019in tersi y\u00f6nde) milyonlarca, hatta on milyonlarca kilometre uzunlu\u011funda parlak bir kuyruk olu\u015fur. Bu kuyruk hep G\u00fcne\u015f\u2019e ters y\u00f6nde olur; \u00e7\u00fcnk\u00fc g\u00fcne\u015f r\u00fczg\u00e2r\u0131 da\u011f\u0131n\u0131k haldeki bu hafif maddeleri s\u00fcrekli G\u00fcne\u015f\u2019in tersi y\u00f6ne do\u011fru \u201c\u00fcf\u00fcr\u00fcr\u201d. B\u00f6ylesi kuyrukluy\u0131ld\u0131zlar geceleri g\u00f6ky\u00fcz\u00fcnde \u00e7ok daha g\u00fczel g\u00f6r\u00fcn\u00fcr. Kuyrukluy\u0131ld\u0131zlar i\u00e7eriklerinin b\u00fcy\u00fck b\u00f6l\u00fcm\u00fcn\u00fcn buz, ta\u015f, toz ve gaz olmas\u0131yla ve bunlar\u0131n birbirine gev\u015fek bir bi\u00e7imde ba\u011flanmas\u0131yla asteroitlerden ayr\u0131l\u0131r.<\/p>\n

\"\"
Kuyrukluy\u0131ld\u0131zlar\u0131n kuyruklar\u0131 her zaman G\u00fcne\u015f\u2019in tersi y\u00f6nde uzar. Kuyrukluy\u0131ld\u0131zlar Orta\u00e7a\u011f Avrupas\u0131\u2019nda u\u011fursuz olaylar\u0131n habercisi olarak g\u00f6r\u00fcl\u00fcrd\u00fc.<\/figcaption><\/figure>\n

G\u00fcne\u015f Sistemi\u2019nde milyonlarca kuyrukluy\u0131ld\u0131z vard\u0131r. \u015eu ana de\u011fin ancak 900 kadar\u0131n\u0131n y\u00f6r\u00fcngesi saptanabilmi\u015ftir. Bunlar\u0131n 200 kadar\u0131 periyodiktir. K\u0131sa periyotlu kuyrukluy\u0131ld\u0131zlar\u0131n -yani periyodu 20 y\u0131ldan k\u0131sa olanlar\u0131n- bir\u00e7o\u011funun periyodu yedi y\u0131l dolay\u0131ndad\u0131r. Kuiper Ku\u015fa\u011f\u0131\u2019ndan geldikleri tahmin edilen bu kuyrukluy\u0131ld\u0131zlar\u0131n G\u00fcne\u015f\u2019in \u00e7evresindeki y\u00f6r\u00fcngesi J\u00fcpiter\u2019e kadard\u0131r ve gezegenlerle ayn\u0131 y\u00f6nde olur. Zaten J\u00fcpiter\u2019in k\u00fctle\u00e7ekim etkisi nedeniyle bu b\u00f6lgede hapsolmu\u015flard\u0131r. Bu kuyrukluy\u0131ld\u0131zlar\u0131n b\u00fcy\u00fck bir b\u00f6l\u00fcm\u00fc k\u0131sa y\u00f6r\u00fcngelerinde dola\u015f\u0131rken s\u00fcrekli madde yitirir (y\u00f6r\u00fcngesinde b\u0131rak\u0131r), k\u00fc\u00e7\u00fcl\u00fcr ve yok olur. K\u00fc\u00e7\u00fck bir b\u00f6l\u00fcm\u00fc de J\u00fcpiter\u2019in k\u00fctle\u00e7ekim etkisiyle G\u00fcne\u015f Sistemi\u2019nin uzak b\u00f6lgelerine g\u00f6nderilir. Orta periyotlu -periyodu 20 ile 200 y\u0131l aras\u0131nda olan- ve uzun periyotlu -periyodu 200 y\u0131ldan uzun- kuyrukluy\u0131ld\u0131zlar\u0131n Oort Bulutu\u2019ndan geldikleri tahmin edilmektedir. Bunlar\u0131n y\u00f6r\u00fcnge d\u00fczlemleri ekliptikle b\u00fcy\u00fck a\u00e7\u0131lar yapabilir.<\/p>\n

D\u00fcnya\u2019n\u0131n geli\u015fiminde kuyrukluy\u0131ld\u0131zlar\u0131n b\u00fcy\u00fck \u00f6nemi olmu\u015ftur. Bir\u00e7ok g\u00f6kbilimci yery\u00fcz\u00fcndeki suyun b\u00fcy\u00fck bir b\u00f6l\u00fcm\u00fcn\u00fcn D\u00fcnya\u2019ya \u00e7arpan kuyrukluy\u0131ld\u0131zlar taraf\u0131ndan getirildi\u011fini d\u00fc\u015f\u00fcnmektedir. Ayr\u0131ca ya\u015fam\u0131n ortaya \u00e7\u0131kmas\u0131nda b\u00fcy\u00fck rol\u00fc oldu\u011fu d\u00fc\u015f\u00fcn\u00fclen organik maddelerin bir b\u00f6l\u00fcm\u00fcn\u00fcn de yine kuyrukluy\u0131ld\u0131zlarla geldi\u011fi d\u00fc\u015f\u00fcn\u00fcl\u00fcr.<\/p>\n

Dipnot:<\/strong>
\n* \u0130nsan yerle\u015fimleri D\u00fcnya y\u00fczeyinde y\u00fczde 5\u2019ten daha az yer kaplad\u0131\u011f\u0131 i\u00e7in, istatistiksel olarak meteoritler \u00e7o\u011funlukla bu alanlar\u0131n d\u0131\u015f\u0131na d\u00fc\u015fer.<\/p>\n

Kaynak:<\/strong> Sunay, \u00c7a\u011flar, 50 Soruda Evren<\/em>, Bilim ve Gelecek Kitapl\u0131\u011f\u0131, \u0130stanbul, 2011, ss. 144-148.<\/p>\n

Meteor ya\u011fmurlar\u0131<\/strong>
\nY\u0131l\u0131n belli g\u00fcnlerinde (gecelerinde) olan meteor ya\u011fmurlar\u0131n\u0131n say\u0131s\u0131 70\u2019in \u00fczerindedir. Bunlar aras\u0131nda en \u00e7ok \u201ckayan y\u0131ld\u0131z\u201d g\u00f6r\u00fclen baz\u0131lar\u0131 \u015funlard\u0131r:
\nKuadrantidler\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1-5 Ocak
\nLiridler\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 15-28 Nisan
\nEta Akuaridler\u00a0 \u00a0 \u00a0 \u00a0 19 Nisan-28 May\u0131s
\nPerseidler\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a017 Temmuz-24 A\u011fustos
\nOrionidler\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 2 Ekim-7 Kas\u0131m
\nLeonidler\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 14-21 Kas\u0131m
\nGeminidler\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 12-16 Aral\u0131k<\/p>\n

Oort Bulutu<\/strong><\/p>\n

\"\"
\nNept\u00fcn\u2019\u00fcn \u00f6tesinde yer alan simit \u015feklindeki Kuiper Ku\u015fa\u011f\u0131\u2019nda k\u00fc\u00e7\u00fckl\u00fc b\u00fcy\u00fckl\u00fc bir milyar dolay\u0131nda g\u00f6kcismi bulundu\u011fu tahmin ediliyor. Bunlar\u0131n b\u00fcy\u00fck b\u00f6l\u00fcm\u00fc y\u00f6r\u00fcngelerinde kararl\u0131 bir \u015fekilde d\u00f6nseler de bazen aralar\u0131ndan biri, gaz devi gezegenlerden birinin k\u00fctle\u00e7ekim etkisiyle y\u00f6r\u00fcngesinden sapar. \u00c7ok bas\u0131k bir elips \u015feklindeki yeni bir y\u00f6r\u00fcngeye girer ve k\u0131sa periyotlu bir kuyrukluy\u0131ld\u0131z oluverir. G\u00fcne\u015f Sistemi\u2019nin i\u00e7lerine do\u011fru yol almaya ba\u015flar.<\/p>\n

Uzun periyotlu kuyrukluy\u0131ld\u0131zlar\u0131n kayna\u011f\u0131 olarak g\u00f6r\u00fclen b\u00f6lgeyse Kuiper Ku\u015fa\u011f\u0131\u2019n\u0131n da \u00f6tesinde yer alan ve onu ku\u015fatan Oort Bulutu\u2019dur. Oort Bulutu\u2019nun k\u00fcresel bir yap\u0131s\u0131 vard\u0131r; yani onu olu\u015fturan g\u00f6kcisimleri G\u00fcne\u015f\u2019in \u00e7evresinde -ekliptik gibi belli bir d\u00fczlemin dolaylar\u0131nda de\u011fil de- k\u00fcresel bir da\u011f\u0131l\u0131m g\u00f6sterir. S\u0131n\u0131rlar\u0131 tam olarak bilinmese de 50.000 AB uzakl\u0131\u011fa kadar uzand\u0131\u011f\u0131 tahmin edilmektedir. Oort Bulutu\u2019nun i\u00e7erdi\u011fi 1 km\u2019den b\u00fcy\u00fck \u00e7apl\u0131 trilyonlarca g\u00f6kcisminin de toplam k\u00fctlesinin yakla\u015f\u0131k be\u015f D\u00fcnya k\u00fctlesi kadar oldu\u011fu d\u00fc\u015f\u00fcn\u00fclmektedir. Yukar\u0131daki resimde -resme s\u0131\u011fabilmesi i\u00e7in- Oort Bulutu\u2019nun \u00e7ap\u0131 binde bir oran\u0131nda k\u00fc\u00e7\u00fclt\u00fclm\u00fc\u015ft\u00fcr.<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

\u0130nsanl\u0131\u011f\u0131n, ba\u015f\u0131n\u0131 kald\u0131r\u0131p g\u00f6\u011fe bakmaya ba\u015flad\u0131\u011f\u0131 ilk \u00e7a\u011flardan beri ilgisini \u00e7eken do\u011fa olaylardan biri hi\u00e7 \u015f\u00fcphesiz y\u0131ld\u0131z kaymas\u0131 gelir. Sakin ve bulutsuz bir gecede aniden parlay\u0131p uzayan ve hemen s\u00f6n\u00fcveren bir \u0131\u015f\u0131k huzmesi\u2026 Bunun neden oldu\u011funa ve neleri do\u011furaca\u011f\u0131na ili\u015fkin her dinde ve k\u00fclt\u00fcrde baz\u0131 do\u011fa\u00fcst\u00fc yan\u0131tlar da verilmi\u015ftir. Bundan birka\u00e7 y\u00fczy\u0131l \u00f6ncesine kadar y\u0131ld\u0131z […]<\/p>\n","protected":false},"author":453,"featured_media":32511,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30,19,3256],"tags":[4567,2815,3438,2816,392,1780,3439],"class_list":["post-32510","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomi","category-bilim-gundemi","category-uzay-ve-havacilik","tag-kuyruklu-yildiz","tag-meteor","tag-meteor-yagmuru","tag-perseid","tag-uzay","tag-yildiz","tag-yildiz-kaymasi"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t