{"id":1751,"date":"2019-09-17T09:03:00","date_gmt":"2019-09-17T09:03:00","guid":{"rendered":"http:\/\/www.ikizler.org\/?p=1751"},"modified":"2021-07-14T10:21:52","modified_gmt":"2021-07-14T10:21:52","slug":"lyra-calgi-takimyildizi","status":"publish","type":"post","link":"https:\/\/www.ikizler.org\/index.php\/2019\/09\/17\/lyra-calgi-takimyildizi\/","title":{"rendered":"Lyra ( \u00c7alg\u0131 ) Tak\u0131my\u0131ld\u0131z\u0131"},"content":{"rendered":"\n
\"\"<\/a><\/figure>\n\n\n\n

Vega<\/strong>, Lir Tak\u0131my\u0131ld\u0131z\u0131<\/a>‘nda yer alan en parlak y\u0131ld\u0131z<\/a>. G\u00f6\u011f\u00fcn be\u015finci parlak y\u0131ld\u0131z\u0131d\u0131r. Kuzey yar\u0131k\u00fcresinde<\/a> Arcturus<\/a>\u2019tan sonra ikinci parlak y\u0131ld\u0131zd\u0131r. G\u00fcne\u015f\u2019e 25,3 \u0131\u015f\u0131k y\u0131l\u0131 uzakl\u0131kta oldu\u011fundan G\u00fcne\u015f\u2019e nispeten yak\u0131n bir y\u0131ld\u0131z say\u0131l\u0131r. Yakla\u015f\u0131k M\u00d6 12.000 y\u0131llar\u0131nda Kutup y\u0131ld\u0131z\u0131<\/a> oldu ve yakla\u015f\u0131k 12.000 y\u0131l\u0131nda yeniden kutup y\u0131ld\u0131z\u0131 olacakt\u0131r. G\u00fcne\u015f<\/a>\u2019ten sonra foto\u011fraf\u0131 \u00e7ekilen ilk y\u0131ld\u0131zd\u0131r.<\/p>\n\n\n\n

Vega s\u00f6zc\u00fc\u011f\u00fc Arap\u00e7a<\/a> en nasr el vak\u00ee<\/em> ( av\u0131na \u00e7ullanan kartal ) ifadesindeki vak\u00ee<\/em> (d\u00fc\u015fen) kelimesinden Latince<\/a> yoluyla T\u00fcrk\u00e7eye<\/a> ge\u00e7mi\u015ftir. \u015eems\u00fcl \u015f\u00fcmus olarak da bilinir. D\u00fcnya<\/a>‘dan yakla\u015f\u0131k 26 \u0131\u015f\u0131k y\u0131l\u0131<\/a> uzakta olan Vega, belirgin bir mavi \u0131\u015f\u0131kla parlar ve 0,03 ile 0,04 aras\u0131nda de\u011fi\u015fen g\u00f6r\u00fcn\u00fcr b\u00fcy\u00fckl\u00fc\u011f\u00fcyle<\/a>, g\u00f6ky\u00fcz\u00fcn\u00fcn en parlak 5. y\u0131ld\u0131z\u0131d\u0131r. 1840<\/a> y\u0131l\u0131nda Vega’n\u0131n paralaks\u0131n\u0131n<\/a> (Biri D\u00fcnya’n\u0131n merkezinden, di\u011feri yery\u00fcz\u00fcnde bulunan bir kimsenin g\u00f6z\u00fcnden \u00e7\u0131kan iki do\u011frunun, bir g\u00f6kcisminin merkezinde birle\u015ferek olu\u015fturduklar\u0131 d\u00fc\u015f\u00fcn\u00fclen a\u00e7\u0131.) Rus<\/a> g\u00f6kbilimci Friedrich Georg Wilhelm von Struve<\/a> taraf\u0131ndan bulunmas\u0131, y\u0131ld\u0131zlararas\u0131 uzakl\u0131klar\u0131n hesaplanmas\u0131 bak\u0131m\u0131ndan \u00f6nemli bir olayd\u0131r. Vega ayn\u0131 zamanda, G\u00fcne\u015f<\/a>\u2019ten sonra foto\u011fraf\u0131 \u00e7ekilen ilk y\u0131ld\u0131zd\u0131r (1850<\/a>).<\/p>\n\n\n\n

Lir Tak\u0131my\u0131ld\u0131z\u0131’nda yer alan Vega, Kartal Tak\u0131my\u0131ld\u0131z\u0131<\/a>‘ndaki Altair<\/a> ve Ku\u011fu Tak\u0131my\u0131ld\u0131z\u0131<\/a>‘ndaki Deneb<\/a>‘le birlikte yaz \u00fc\u00e7geninin k\u00f6\u015felerini olu\u015fturan y\u0131ld\u0131zlardan biridir. Vega, bir zamanlar “Kutup y\u0131ld\u0131z\u0131<\/a>“yd\u0131. G\u00fcne\u015f<\/a> ve Ay’\u0131n \u00e7ekim kuvvetlerinin etkisiyle, D\u00fcnya’n\u0131n ekvator<\/a> b\u00f6lgesindeki \u015fi\u015fkinlik, gezegenin eksensel hareketinde bir teredd\u00fcte yol a\u00e7maktad\u0131r. Buna ba\u011fl\u0131 olarak 26.000 y\u0131lda bir olu\u015fan y\u00f6r\u00fcngesel sal\u0131n\u0131m, y\u0131ld\u0131zlar\u0131n g\u00f6ky\u00fcz\u00fcndeki konumlar\u0131n\u0131 da yava\u015f yava\u015f de\u011fi\u015ftirmektedir. Bu nedenle Vega, yakla\u015f\u0131k 11.500 y\u0131l sonra tekrar “kutup y\u0131ld\u0131z\u0131” konumunda olacakt\u0131r.<\/p>\n\n\n\n

Tayf<\/a> t\u00fcr\u00fc A, y\u00fczey s\u0131cakl\u0131\u011f\u0131 9.500 Kelvin derece olan Vega, G\u00fcne\u015f’ten yakla\u015f\u0131k 50 kat daha parlak bir y\u0131ld\u0131zd\u0131r. K\u00fctlesi ise G\u00fcne\u015f’in k\u00fctlesinin 2,5 kat\u0131ndan fazlad\u0131r. Bu nedenle, i\u00e7 yak\u0131t\u0131n\u0131 G\u00fcne\u015f’ten \u00e7ok daha h\u0131zl\u0131 t\u00fcketmektedir. Vega’n\u0131n \u00f6mr\u00fcn\u00fcn G\u00fcne\u015f’in \u00f6mr\u00fcn\u00fcn %10’undan bile k\u0131sa olaca\u011f\u0131 tahmin edimektedir. Buna g\u00f6re Vega, yakla\u015f\u0131k 1 milyar y\u0131l sonra s\u00f6nm\u00fc\u015f bir y\u0131ld\u0131z olacakt\u0131r.<\/p>\n\n\n\n

1983<\/a> y\u0131l\u0131nda K\u0131z\u0131l\u00f6tesi G\u00f6kbilim Uydusu (“Infrared Astronomy Satellite”, IRAS), y\u0131ld\u0131z\u0131n k\u0131z\u0131l\u00f6tesi<\/a> \u0131\u015f\u0131n yayan ve taneciklerden olu\u015fan b\u00fcy\u00fck bir haleyle \u00e7evrelendi\u011fini saptad\u0131. Disk bi\u00e7imindeki bu hale daha \u00e7ok s\u0131cak bir toz bulutuna benzemektedir ve y\u0131ld\u0131z\u0131n merkezinden yakla\u015f\u0131k 815 astronomik birim<\/a> uza\u011fa kadar yay\u0131lmaktad\u0131r. Vega’ya benzer pek \u00e7ok ba\u015fka y\u0131ld\u0131z da (Fomalhaut<\/a>, Denebola<\/a>, Merak<\/a> gibi) benzer bir diske sahiptir. Vega’n\u0131n d\u00f6n\u00fc\u015f ekseninin D\u00fcnya’ya dik oldu\u011fu, onu \u00e7evreleyen disk bi\u00e7imli toz bulutunun ise y\u00fcz\u00fcn\u00fcn bize d\u00f6n\u00fck oldu\u011fu g\u00f6zlenmi\u015ftir. Yani, y\u0131ld\u0131z\u0131 \u00e7evreleyen disk, G\u00fcne\u015f’i \u00e7evreleyen ve gezegenleri i\u00e7eren ku\u015fa\u011fa benzer bi\u00e7imde konumlanm\u0131\u015ft\u0131r. Bu nedenle, Vega’n\u0131n bir gezegen sistemi olabilece\u011fi ya da b\u00f6yle bir sistemin olu\u015fmakta oldu\u011fu d\u00fc\u015f\u00fcncesi a\u011f\u0131rl\u0131k kazanm\u0131\u015ft\u0131r.<\/p>\n\n\n\n

Kaynak: .wikipedia.org<\/p>\n\n\n\n

Obje Ad\u0131: Lyra ( \u00c7alg\u0131 ) Tak\u0131my\u0131ld\u0131z\u0131 – Vega<\/p>\n\n\n\n

Foto\u011fraf: U\u011fur \u0130K\u0130ZLER
Tarih: 17.09.2019 
Saat: 20:30 – 22:37
Yer: Mudanya – Bursa 40.36023 \u00b0 N – 28.90191 \u00b0 E<\/p>\n\n\n\n

Optik (G\u00f6r\u00fcnt\u00fcleme): EF24-105mm f\/3.5-5.6 IS STM ( 105 mm f\/5.6 )<\/p>\n\n\n\n

Kundak: El yap\u0131m\u0131 kundak
Kamera (G\u00f6r\u00fcnt\u00fcleme): Canon EOS 6 D
ISO H\u0131z\u0131: ISO 400
Poz s\u00fcresi:  25 x 312 sn.  20 Flat,  25 Bias,  10 Dark<\/p>\n\n\n\n

Yaz\u0131l\u0131m: Pix\u0130nsight 1.8, Photoshop CC 2015<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Vega, Lir Tak\u0131my\u0131ld\u0131z\u0131‘nda yer alan en parlak y\u0131ld\u0131z. G\u00f6\u011f\u00fcn be\u015finci parlak y\u0131ld\u0131z\u0131d\u0131r. Kuzey yar\u0131k\u00fcresinde Arcturus\u2019tan sonra ikinci parlak y\u0131ld\u0131zd\u0131r. G\u00fcne\u015f\u2019e 25,3 \u0131\u015f\u0131k y\u0131l\u0131 uzakl\u0131kta oldu\u011fundan G\u00fcne\u015f\u2019e nispeten yak\u0131n bir y\u0131ld\u0131z say\u0131l\u0131r. Yakla\u015f\u0131k M\u00d6 12.000 y\u0131llar\u0131nda Kutup y\u0131ld\u0131z\u0131 oldu ve yakla\u015f\u0131k 12.000 y\u0131l\u0131nda yeniden kutup y\u0131ld\u0131z\u0131 olacakt\u0131r. G\u00fcne\u015f\u2019ten sonra foto\u011fraf\u0131 \u00e7ekilen ilk y\u0131ld\u0131zd\u0131r. Vega s\u00f6zc\u00fc\u011f\u00fc Arap\u00e7a en nasr el vak\u00ee ( av\u0131na \u00e7ullanan kartal ) ifadesindeki vak\u00ee (d\u00fc\u015fen) kelimesinden Latince yoluyla T\u00fcrk\u00e7eye ge\u00e7mi\u015ftir. \u015eems\u00fcl…<\/p>\n","protected":false},"author":1,"featured_media":1752,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[37],"tags":[],"class_list":["post-1751","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-takimyildizlar","wpcat-37-id"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.ikizler.org\/wp-content\/uploads\/2021\/06\/Lyra-e1653814158500.png?fit=1000%2C691&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/posts\/1751","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/comments?post=1751"}],"version-history":[{"count":1,"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/posts\/1751\/revisions"}],"predecessor-version":[{"id":1753,"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/posts\/1751\/revisions\/1753"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/media\/1752"}],"wp:attachment":[{"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/media?parent=1751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/categories?post=1751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/tags?post=1751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}