{"id":1428,"date":"2024-08-01T18:29:00","date_gmt":"2024-08-01T15:29:00","guid":{"rendered":"http:\/\/www.ikizler.org\/?p=1428"},"modified":"2025-10-20T15:47:39","modified_gmt":"2025-10-20T12:47:39","slug":"kuzey-amerika-bulutsusu","status":"publish","type":"post","link":"https:\/\/www.ikizler.org\/index.php\/2024\/08\/01\/kuzey-amerika-bulutsusu\/","title":{"rendered":"Kuzey Amerika Bulutsusu"},"content":{"rendered":"\n
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\"\"<\/figure>\n<\/figure>\n\n\n\n

Kuzey Amerika Bulutsusu<\/strong> ( NGC 7000<\/strong> veya Caldwell 20 ), <\/strong>Ku\u011fu<\/a> tak\u0131my\u0131ld\u0131z\u0131nda , Deneb’e ( <\/a>ku\u011fu<\/a> kuyru\u011fu ve en parlak y\u0131ld\u0131z\u0131<\/a> ) yak\u0131n bir salma bulutsusudur . <\/a>Bulutsunun<\/a> \u015fekli, belirgin bir Meksika K\u00f6rfezi ile tamamlanan Kuzey Amerika<\/a> k\u0131tas\u0131n\u0131n \u015feklini and\u0131r\u0131yor .<\/p>\n\n\n\n

24 Ekim 1786’da \u0130ngiltere, Slough’dan<\/a> g\u00f6zlemleyen William Herschel<\/a> , “baz\u0131 yerlerde olduk\u00e7a parlak olan bu uzaya da\u011f\u0131lm\u0131\u015f hafif, s\u00fctl\u00fc bir bulutsu” kaydetti.  En g\u00f6ze \u00e7arpan b\u00f6lge, 21 A\u011fustos 1829’da o\u011flu John Herschel taraf\u0131ndan kataloglanm\u0131\u015ft\u0131r. <\/a>Yeni Genel Katalog’da<\/a> NGC 7000 olarak listelenmi\u015ftir ve burada “soluk, en a\u015f\u0131r\u0131 derecede b\u00fcy\u00fck, da\u011f\u0131n\u0131k bulutluluk” olarak tan\u0131mlanm\u0131\u015ft\u0131r. <\/p>\n\n\n\n

1890’da \u00f6nc\u00fc Alman astrofotograf <\/a>Max Wolf<\/a> , uzun pozlamal\u0131 bir foto\u011frafta bu bulutsunun karakteristik \u015feklini fark etti ve ona Kuzey Amerika Bulutsusu ad\u0131n\u0131 verdi. <\/p>\n\n\n\n

Amerikal\u0131 g\u00f6kbilimci Stewart Sharpless<\/a> , 1959’da Palomar G\u00f6ky\u00fcz\u00fc Ara\u015ft\u0131rmas\u0131<\/a> levhalar\u0131 \u00fczerindeki bulutsularla ilgili \u00e7al\u0131\u015fmas\u0131nda , Kuzey Amerika Bulutsusu’nun, Pelikan Bulutsusu ile ayn\u0131 <\/a>y\u0131ld\u0131zlararas\u0131 <\/a>iyonize <\/a>hidrojen<\/a> bulutunun ( H II b\u00f6lgesi<\/a> ) bir par\u00e7as\u0131 oldu\u011funu fark etti . ve iki bulutsuyu 313 parlak bulutsudan olu\u015fan ikinci listesinde Sh2-117 olarak listeledi. Amerikal\u0131 astronom Beverly T. Lynds, 1962 karanl\u0131k bulutsu derlemesinde, gizleyen toz bulutunu L935 olarak kataloglad\u0131. Hollandal\u0131 radyo astronomu Gart Westerhout<\/a> , HII b\u00f6lgesi Sh2-117’yi 3\u00b0 \u00e7ap\u0131nda g\u00fc\u00e7l\u00fc bir radyo yay\u0131c\u0131 olarak tespit etti ve 1958 katalo\u011funda W80 olarak g\u00f6r\u00fcn\u00fcyor. Samanyolu<\/a> band\u0131ndaki radyo kaynaklar\u0131<\/a> . <\/p>\n\n\n\n

Kuzey Amerika Bulutsusu, dolunay<\/a> alan\u0131n\u0131n on kat\u0131ndan daha fazla bir alan\u0131 kaplar , ancak y\u00fczey parlakl\u0131\u011f\u0131 d\u00fc\u015f\u00fckt\u00fcr, bu nedenle normalde \u00e7\u0131plak g\u00f6zle g\u00f6r\u00fclemez. Geni\u015f g\u00f6r\u00fc\u015f alanlar\u0131na (yakla\u015f\u0131k 3\u00b0) sahip <\/a>d\u00fcrb\u00fcnler<\/a> ve teleskoplar<\/a> , onu yeterince karanl\u0131k g\u00f6ky\u00fcz\u00fc alt\u0131nda sisli bir \u0131\u015f\u0131k par\u00e7as\u0131 olarak g\u00f6sterecektir. Bununla birlikte, istenmeyen baz\u0131 dalga boylar\u0131n\u0131 filtreleyen bir <\/a>UHC filtresi<\/a> kullan\u0131larak, karanl\u0131k g\u00f6ky\u00fcz\u00fc alt\u0131nda b\u00fcy\u00fctme olmadan g\u00f6r\u00fclebilir. \u015eekli ve k\u0131rm\u0131z\u0131ms\u0131 rengi ( hidrojen<\/a> H\u03b1 emisyon \u00e7izgisinden<\/a> ) yaln\u0131zca b\u00f6lgenin foto\u011fraflar\u0131nda g\u00f6r\u00fclmektedir. <\/p>\n\n\n\n

Bulutsunun Meksika ve Orta Amerika’y\u0131 and\u0131ran k\u0131sm\u0131 Ku\u011fu Duvar\u0131 olarak bilinir. Bu b\u00f6lge en yo\u011fun y\u0131ld\u0131z olu\u015fumunu<\/a> sergiler . <\/p>\n\n\n\n

Optik dalga boylar\u0131nda, Kuzey Amerika Bulutsusu ve Pelikan Bulutsusu ( IC 5070), <\/a>y\u0131ld\u0131zlararas\u0131 toz<\/a> L935’in karanl\u0131k band\u0131n\u0131n sil\u00fcetiyle ayr\u0131ld\u0131klar\u0131 i\u00e7in farkl\u0131 g\u00f6r\u00fcn\u00fcrler. Ancak kara bulut, radyo dalgalar\u0131na ve k\u0131z\u0131l\u00f6tesi radyasyona kar\u015f\u0131 \u015feffaft\u0131r ve bu dalga boylar\u0131, Sh2-117’nin s\u0131radan bir teleskopla g\u00f6r\u00fclemeyen merkezi b\u00f6lgelerini ortaya \u00e7\u0131kar\u0131r; bu, pek \u00e7ok \u00e7ok parlak y\u0131ld\u0131z da dahil olmak \u00fczere. <\/p>\n\n\n\n

Kuzey Amerika ve Pelikan bulutsular\u0131na olan mesafeler tart\u0131\u015fmal\u0131yd\u0131, \u00e7\u00fcnk\u00fc bir HII b\u00f6lgesinin ne kadar uzakta oldu\u011funu belirlemek i\u00e7in birka\u00e7 kesin y\u00f6ntem var. 2020 y\u0131l\u0131na kadar \u00e7o\u011fu g\u00f6kbilimci 2.000 \u0131\u015f\u0131ky\u0131l\u0131 de\u011ferini kabul etti, ancak tahminler 1.500 ila 3.000 \u0131\u015f\u0131ky\u0131l\u0131 aras\u0131nda de\u011fi\u015fiyordu. <\/p>\n\n\n\n

Ancak 2020’de Gaia astrometri uzay arac\u0131<\/a> , HII b\u00f6lgesinde yer alan 395 y\u0131ld\u0131za olan mesafeleri \u00f6l\u00e7erek Kuzey Amerika ve Pelikan bulutsular\u0131na 2.590 \u0131\u015f\u0131ky\u0131l\u0131 (795\u00b125 parsek) mesafe verdi. T\u00fcm HII b\u00f6lgesi Sh2-117’nin 140 \u0131\u015f\u0131ky\u0131l\u0131 geni\u015fli\u011finde oldu\u011fu tahmin edilmektedir ve Kuzey Amerika bulutsusu kuzeyden g\u00fcneye 90 \u0131\u015f\u0131ky\u0131l\u0131 boyunca uzanmaktad\u0131r. <\/p>\n\n\n\n

HII b\u00f6lgeleri, hidrojen gazlar\u0131n\u0131n s\u0131cak bir y\u0131ld\u0131zdan gelen ultraviyole radyasyon<\/a> taraf\u0131ndan iyonize edilmesi nedeniyle parlar . 1922’de Edwin Hubble<\/a> , Deneb’in Kuzey Amerika Bulutsusu’nun ayd\u0131nlat\u0131lmas\u0131ndan sorumlu olabilece\u011fini \u00f6ne s\u00fcrd\u00fc, ancak k\u0131sa s\u00fcre sonra yeterince s\u0131cak olmad\u0131\u011f\u0131 anla\u015f\u0131ld\u0131: Deneb’in y\u00fczey s\u0131cakl\u0131\u011f\u0131 8,500 K iken, bulutsunun tayf\u0131 taraf\u0131ndan \u0131s\u0131t\u0131ld\u0131\u011f\u0131n\u0131 g\u00f6steriyor. 30.000 K’dan daha s\u0131cak bir y\u0131ld\u0131z. Ayr\u0131ca Deneb, Kuzey Amerika\/Pelikan nebula kompleksinin (Sh2-117) ortas\u0131ndan olduk\u00e7a uzaktad\u0131r ve 1958’de George Herbig<\/a> , iyonla\u015ft\u0131r\u0131c\u0131 y\u0131ld\u0131z\u0131n merkezi kara bulutun arkas\u0131nda olmas\u0131 gerekti\u011fini fark etti. L935. 2004 y\u0131l\u0131nda Avrupal\u0131 \u200b\u200bg\u00f6kbilimciler Fernando Comer\u00f3n ve Anna Pasquali, L935’in arkas\u0131ndaki iyonla\u015ft\u0131r\u0131c\u0131 y\u0131ld\u0131z\u0131 k\u0131z\u0131l\u00f6tesi dalga boylar\u0131nda arad\u0131lar.2MASS<\/a> ara\u015ft\u0131rmas\u0131 ve ard\u0131ndan \u0130spanya’daki Calar Alto G\u00f6zlemevi’nde<\/a> 2,2 m’lik teleskopla olas\u0131 \u015f\u00fcphelilerin ayr\u0131nt\u0131l\u0131 g\u00f6zlemlerini yapt\u0131 . Katalogda J205551.3+435225 olan bir y\u0131ld\u0131z t\u00fcm kriterleri kar\u015f\u0131lad\u0131. 40.000 K’nin \u00fczerinde bir s\u0131cakl\u0131\u011fa sahip Sh2-117’nin tam merkezinde yer alan bu y\u0131ld\u0131z, neredeyse kesinlikle Kuzey Amerika ve Pelikan bulutsular\u0131 i\u00e7in iyonla\u015ft\u0131r\u0131c\u0131 y\u0131ld\u0131zd\u0131r. <\/p>\n\n\n\n

Daha sonraki g\u00f6zlemler, J205551.3+435225’in y\u00f6r\u00fcngede ba\u015fka bir s\u0131cak y\u0131ld\u0131z (O8) ile birlikte tayfsal tipte bir O3.5 y\u0131ld\u0131z oldu\u011funu ortaya \u00e7\u0131kard\u0131. <\/a>J205551.3+435225, Kuzey Amerika Bulutsusu’nun “Florida sahilinin” hemen d\u0131\u015f\u0131nda yer al\u0131r, bu nedenle daha uygun bir \u015fekilde Bajamar Y\u0131ld\u0131z\u0131 olarak adland\u0131r\u0131lm\u0131\u015ft\u0131r (“Islas de Bajamar”, \u0130spanyolca’da “gelgit adalar\u0131” anlam\u0131na gelir, orijinal ad\u0131d\u0131r. Bahamalar<\/a> , \u00e7\u00fcnk\u00fc bir\u00e7o\u011fu sadece gelgit s\u0131ras\u0131nda bir gemiden kolayca g\u00f6r\u00fclebilir). <\/p>\n\n\n\n

Bajamar Y\u0131ld\u0131z\u0131ndan gelen \u0131\u015f\u0131k, karanl\u0131k bulut L935 taraf\u0131ndan 9.6 kadir (neredeyse 10.000 kat) kadar karart\u0131lsa da, 13.2 kadirde optik dalga boylar\u0131nda zay\u0131f bir \u015fekilde g\u00f6r\u00fclebilir. Bu y\u0131ld\u0131z\u0131 s\u00f6nmemi\u015f olarak g\u00f6rseydik, 3.6 kadir parlakl\u0131\u011f\u0131nda, neredeyse ku\u011fu ba\u015f\u0131n\u0131 i\u015faretleyen Albireo<\/a> kadar parlak olurdu . <\/p>\n\n\n\n

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

<\/p>\n\n\n\n

Foto\u011fraf: U\u011fur \u0130K\u0130ZLER
Tarih: 31.07.2024 \u2013 01.08.2024
Saat: 23:48 – 01:52
Yer: Mudanya – Bursa 40.36023 \u00b0 N – 28.90191 \u00b0 E<\/p>\n\n\n\n

Optik : Canon EF 70-200mm f\/2.8L IS II USM  ( 200 mm-f\/2.8 )<\/p>\n\n\n\n

Kundak: El yap\u0131m\u0131 kundak
Kamera : Canon EOS 6D Full Spectrum Modified<\/p>\n\n\n\n

Otomatik takip: PHD, Bower mirror lens  500 mm f\/6.3- ZWO ASI 120 MC-S<\/p>\n\n\n\n

ISO: 400<\/p>\n\n\n\n

Poz: Light  57 x 120 sn. \u2013 Dark 30 \u2013 Flat 20 \u2013 Bias 25<\/p>\n\n\n\n

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

<\/p>\n\n\n\n

\n
\"\"<\/figure>\n<\/figure>\n\n\n\n

<\/p>\n\n\n\n

Obje Ad\u0131: Kuzey Amerika \u2013 Pelikan Bulutsusu<\/p>\n\n\n\n

Foto\u011fraf: U\u011fur \u0130K\u0130ZLER
Tarih: 29.04.2022
Saat: 03:07 – 04:56
Yer: Mudanya – Bursa 40.36023 \u00b0 N – 28.90191 \u00b0 E<\/p>\n\n\n\n

Optik (G\u00f6r\u00fcnt\u00fcleme): EF 70-200mm f\/2.8L IS II USM  ( 200 mm-f\/2.8 )
Kundak: El yap\u0131m\u0131 kundak
Kamera (G\u00f6r\u00fcnt\u00fcleme): Canon EOS 6D Beader Astro Conversion Filter Modified<\/p>\n\n\n\n

ISO: 400<\/p>\n\n\n\n

Poz: Light  66 x 90 sn. \u2013 Dark 30 \u2013 Flat 20 \u2013 Bias 25 Yaz\u0131l\u0131m: Pix\u0130nsight 1.8, Photoshop CC 2015<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Obje Ad\u0131: Deneb, Pelikan Bulutsu, Kuzey Amerika Bulutsu<\/p>\n\n\n\n

Foto\u011fraf: U\u011fur \u0130K\u0130ZLER
Tarih: 12.05.2021
Saat: 00:51 – 03:30
Yer: Mudanya – Bursa 40.36023 \u00b0 N – 28.90191 \u00b0 E<\/p>\n\n\n\n

Optik (G\u00f6r\u00fcnt\u00fcleme): EF 70-200mm f\/2.8L IS II USM  (200 mm-f\/2.8)<\/p>\n\n\n\n

Kundak: El yap\u0131m\u0131 kundak
Kamera (G\u00f6r\u00fcnt\u00fcleme): Canon EOS 6D Beader Astro Conversion Filter Modified<\/p>\n\n\n\n

ISO: 400<\/p>\n\n\n\n

Poz: Light  84 x 90 sn. \u2013 Dark 30 \u2013 Flat 20 \u2013 Bias 25<\/p>\n\n\n\n

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

<\/p>\n\n\n\n

<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Obje Ad\u0131: NGC 7000 – Kuzey Amerika Bulutsusu<\/p>\n\n\n\n

Foto\u011fraf: U\u011fur \u0130K\u0130ZLER
Tarih: 14.08.2020
Saat: 21:38 – 23:56
Yer: Mudanya – Bursa 40.36023 \u00b0 N – 28.90191 \u00b0 E<\/p>\n\n\n\n

Optik (G\u00f6r\u00fcnt\u00fcleme): EF 70-200mm f\/2.8L IS II USM  (200 mm-f\/2.8)
Kundak: El yap\u0131m\u0131 kundak
Kamera (G\u00f6r\u00fcnt\u00fcleme): Canon EOS 6D Full Spectrum Modified<\/p>\n\n\n\n

ISO: 800<\/p>\n\n\n\n

Poz: Light  137 x 45 sn. \u2013 Dark 30 \u2013 Flat 20 \u2013 Bias 25<\/p>\n\n\n\n

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

\"\"<\/a><\/figure>\n\n\n\n

Obje Ad\u0131: Kuzey Amerika Bulutsusu  ( NGC 7000 )<\/p>\n\n\n\n

Foto\u011fraf: U\u011fur \u0130K\u0130ZLER
Tarih: 12.06.2018
Saat: 00:17 \u2013 03:03
Yer: Mudanya – Bursa 40.36023 \u00b0 N – 28.90191 \u00b0 E<\/p>\n\n\n\n

Optik (G\u00f6r\u00fcnt\u00fcleme): Bower mirror lens  500 mm f\/6.3
Kundak: El yap\u0131m\u0131 kundak
Kamera (G\u00f6r\u00fcnt\u00fcleme): Canon EOS 6 D
ISO H\u0131z\u0131: ISO 1600
Poz s\u00fcresi: Light  106 x 60 sn. \u2013 Dark 18 \u2013 Flat 25 \u2013 Bias 30
Yaz\u0131l\u0131m: Pix\u0130nsight 1.8, Photoshop CC 2015<\/p>\n\n\n\n

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

Kuzey Amerika Bulutsusu ( NGC 7000 veya Caldwell 20 ), Ku\u011fu tak\u0131my\u0131ld\u0131z\u0131nda , Deneb’e ( ku\u011fu kuyru\u011fu ve en parlak y\u0131ld\u0131z\u0131 ) yak\u0131n bir salma bulutsusudur . Bulutsunun \u015fekli, belirgin bir Meksika K\u00f6rfezi ile tamamlanan Kuzey Amerika k\u0131tas\u0131n\u0131n \u015feklini and\u0131r\u0131yor . 24 Ekim 1786’da \u0130ngiltere, Slough’dan g\u00f6zlemleyen William Herschel , “baz\u0131 yerlerde olduk\u00e7a parlak olan bu uzaya da\u011f\u0131lm\u0131\u015f hafif, s\u00fctl\u00fc bir bulutsu” kaydetti.  En g\u00f6ze \u00e7arpan b\u00f6lge, 21 A\u011fustos 1829’da o\u011flu John Herschel taraf\u0131ndan kataloglanm\u0131\u015ft\u0131r. Yeni Genel Katalog’da NGC 7000 olarak listelenmi\u015ftir ve burada…<\/p>\n","protected":false},"author":1,"featured_media":1429,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[22],"tags":[],"class_list":["post-1428","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bulutsular","wpcat-22-id"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.ikizler.org\/wp-content\/uploads\/2021\/06\/Deneb_Pelikan_Kuzey_Amerika_Nebula-e1653698643799.png?fit=1000%2C652&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/posts\/1428","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=1428"}],"version-history":[{"count":8,"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/posts\/1428\/revisions"}],"predecessor-version":[{"id":5268,"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/posts\/1428\/revisions\/5268"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/media\/1429"}],"wp:attachment":[{"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/media?parent=1428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/categories?post=1428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ikizler.org\/index.php\/wp-json\/wp\/v2\/tags?post=1428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}