Уикицитат

Файл:Crab Nebula.jpg

Оригинален файл (3864 × 3864 пиксела, големина на файла: 13,84 МБ, MIME-тип: image/jpeg)

Този файл е от Общомедия и може да се използва от други проекти. Следва информация за файла, достъпна през оригиналната му описателна страница.

Резюме

Описание
English: This is a mosaic image, one of the largest ever taken by NASA's Hubble Space Telescope, of the Crab Nebula, a six-light-year-wide expanding remnant of a star's supernova explosion. Japanese and Chinese astronomers recorded this violent event in 1054 CE.

The orange filaments are the tattered remains of the star and consist mostly of hydrogen. The rapidly spinning neutron star embedded in the center of the nebula is the dynamo powering the nebula's eerie interior bluish glow. The blue light comes from electrons whirling at nearly the speed of light around magnetic field lines from the neutron star. The neutron star, like a lighthouse, ejects twin beams of radiation that appear to pulse 30 times a second due to the neutron star's rotation. A neutron star is the crushed ultra-dense core of the exploded star.

The Crab Nebula derived its name from its appearance in a drawing made by Irish astronomer Lord Rosse in 1844, using a 36-inch telescope. When viewed by Hubble, as well as by large ground-based telescopes such as the European Southern Observatory's Very Large Telescope, the Crab Nebula takes on a more detailed appearance that yields clues into the spectacular demise of a star, 6,500 light-years away.

The newly composed image was assembled from 24 individual Wide Field and Planetary Camera 2 exposures taken in October 1999, January 2000, and December 2000. The colors in the image indicate the different elements that were expelled during the explosion. Blue in the filaments in the outer part of the nebula represents neutral oxygen, green is singly-ionized sulfur, and red indicates doubly-ionized oxygen.
Français : Cette image, une des plus grandes de la Nébuleuse du Crabe jamais prises par le télescope spatial Hubble de la NASA, est en réalité une mosaïque de plusieurs clichés. La nébuleuse s'étend sur une distance de six années-lumière et est composée des restes de l'explosion d'une supernova. Les astronomes chinois et japonais ont observé cette violente explosion il y a environ un millénaire, en 1054.

Les filaments oranges sont les restes en lambeaux de l'étoile et se composent principalement d'hydrogène. L'étoile à neutrons qui tourne rapidement sur elle-même, intégrée dans le centre de la nébuleuse, est la dynamo alimentant l'intérieur de la nébuleuse de l'étrange lueur bleuâtre. La lumière bleue provient des électrons tourbillonnant presque à la vitesse de la lumière autour de lignes du champ magnétique de l'étoile à neutrons. L'étoile à neutrons, comme un phare, émet des faisceaux de rayonnements jumeaux qui semblent battre 30 fois par seconde en raison de la rotation de l'étoile à neutrons. Une étoile à neutrons est le noyau écrasé ultra-dense de l'étoile qui a explosé.

L'image est formée de l'assemblage de 24 prises individuelles de la Wide Field and Planetary Camera 2 datant d'octobre 1999, janvier 2000 et décembre 2000. Les couleurs de l'image indiquent les différents éléments qui ont été expulsé lors de l'explosion. Le bleu dans les filaments de la partie extérieure de la nébuleuse représente l'oxygène neutre, le vert est le souffre ionisé I, et le rouge indique l'oxygène ionisé II.
العربية: هذه الصورة المركبة, هي واحدة من أكبر الصور على الإطلاق التي التقطها تلسكوب هبل لسديم السرطان, وهو بقايا مستعر أعظم تمتد على مساحة قطرها 6 سنوات ضوئية. قام الفلكيون القدماء العرب والصينيون بتسجيل هذا الحدث قبل 1,000 عام في سنة 1054م, كما فعل ذلك البحارة الأمريكيون (بالرغم من أنه ليس من المؤكد تماماً أن ما سجلوه هو هذا).

الخيوط البرتقالية الظاهرة في الصورة هي أشلاء وشظايا متبقّية من النجم الذي انفجر (وكوّن السديم) وهي تتركب بشكل رئيسي من الهيدروجين. النجم النيوتروني سريع "الدوران المحوري" المتواري في وسط السديم يَعمل كمولد طاقة يُسبب البريق المُزرقّ الغريب المُشع من وسط السديم. وهذا الضوء الأزرق قادم من إلكترونات تدور بما يُقارب سرعة الضوء حول الحقل المغناطيسي للنجم النيوتروني. النجم النيوتروني, مثل المنارة, يُطلق شعاعين من الضوء في اتجاهين مختلفين يَجعلناه يبدو كأنه ينبض 30 مرة في الثانية نتيجة لدورانه المحوري السريع (النجوم النيوترونية تُتم بضعة دورات حول نفسها في الثانية على الأقل). والنجم النيوتروني هو نواة مسحوقة شديدة الكثافة لنجم انفجر.

هذه الصورة المركبة رُكّبت من 24 صورة بعضها التطقت في تشرين الأول (أكتوبر) 1999, وكانون الثاني (يناير) 2000, وكانون الأول (ديسمبر) 2000. الألوان في الصورة تدل على عناصر مختلفة قذفت أثناء الانفجار. اللون الأزرق في الشعيرات في الجزء الخارجي من السديم هو لأكسجين طبيعي, والأخضر لكبريت متأين فردياً, والأحمر لأكسجين متأين.
Дата
Източник HubbleSite: gallery, release.
Автор NASA, ESA, J. Hester and A. Loll (Arizona State University)
Права
(Повторно използване на файла)		 Material credited to STScI on this site was created, authored, and/or prepared for NASA under Contract NAS5-26555. Unless otherwise specifically stated, no claim to copyright is being asserted by STScI and it may be freely used as in the public domain in accordance with NASA's contract. However, it is requested that in any subsequent use of this work NASA and STScI be given appropriate acknowledgement. STScI further requests voluntary reporting of all use, derivative creation, and other alteration of this work. Such reporting should be sent to copyright@stsci.edu.
други версии https://www.flickr.com/photos/gsfc/4398655649/ and https://www.flickr.com/photos/nasahubble/27747556420/

Лицензиране

Public domain
This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.

The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org.

For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.


Assessment

Featured изображение

ОбщомедияУикипедия

This is a featured picture on Wikimedia Commons (Featured pictures) and is considered one of the finest images. See its nomination here.
Уикипедия
 This is a featured picture on the Arabic language Wikipedia (صور مختارة) and is considered one of the finest images. See its nomination here.
 This is a featured picture on the German language Wikipedia (Exzellente Bilder) and is considered one of the finest images. See its nomination here.
 This is a featured picture on the English language Wikipedia (Featured pictures) and is considered one of the finest images. See its nomination here.
 This is a featured picture on the Spanish language Wikipedia (Recursos destacados) and is considered one of the finest images. See its nomination here.
 This is a featured picture on the Persian language Wikipedia (نگاره‌های برگزیده) and is considered one of the finest images. See its nomination here.
 This is a featured picture on the Tamil language Wikipedia (இன்றைய சிறப்புப் படம்) and is considered one of the finest images. See its nomination here.
 This is a featured picture on the Turkish language Wikipedia (Seçkin resimler) and is considered one of the finest images. See its nomination here.
 This is a featured picture on the Chinese language Wikipedia (特色图片) and is considered one of the finest images. See its nomination here.

If you have an image of similar quality that can be published under a suitable copyright license, be sure to upload it, tag it, and nominate it.

This image was selected as picture of the day on Vietnamese Wikipedia.
Annotations
InfoField
This image is annotated: View the annotations at Commons

Описания

Add a one-line explanation of what this file represents
The Crab Nebula as seen by the Hubble Space Telescope (HST). The Nebula is a Supernova Nebula — One formed from a supernova which left a millisecond pulsar at its center.

дата на създаване

1 декември 2005

media type английски

image/jpeg

Commons quality assessment английски

Wikimedia Commons featured picture английски

checksum английски

70fd7d0343e373fa0ac4735eeaf1fe26fe26e548

метод на определяне: SHA-1

data size английски

14 508 851 Байт

височина

3864 пиксел

ширина

3864 пиксел

История на файла

Избирането на дата/час ще покаже как е изглеждал файлът към онзи момент.

Дата/ЧасМиникартинкаРазмерПотребителКоментар
текуща14:56, 25 ноември 2012Миникартинка на версията към 14:56, 25 ноември 20123864 × 3864 (13,84 МБ)Hawky.diddizLossless optimization
10:13, 17 май 2012Миникартинка на версията към 10:13, 17 май 20123864 × 3864 (14,61 МБ)MetrónomoHigher quality
09:31, 20 юни 2009Миникартинка на версията към 09:31, 20 юни 20093864 × 3864 (6,18 МБ)TryphonHigher resolution.
21:26, 9 март 2006Миникартинка на версията към 21:26, 9 март 20062224 × 2212 (3,08 МБ)Stianbhlarger version
00:35, 16 януари 2006Миникартинка на версията към 00:35, 16 януари 2006400 × 400 (23 КБ)DragonFire1024Image: A New View of the Helix Nebula Source: http://hubblesite.org/gallery/album/entire_collection/pr2004032d/ Copyright Notice: Material credited to STScI on this site was created, authored, and/or prepared for NASA under Contract NAS5-26555. Unless

Няма страници, използващи файла.

Глобално използване на файл

Метаданни

Файлът съдържа допълнителни данни, обикновено добавяни от цифровите апарати или скенери. Ако файлът е редактиран след създаването си, то някои параметри може да не съответстват на текущото изображение.

Взето от „https://bg.wikiquote.org/wiki/Файл:Crab_Nebula.jpg“.