الصوره الاصليه(1,103 × 1,101 بكسل حجم الفايل: 467 كيلوبايت، نوع MIME: image/jpeg)
الملف دا من ويكيميديا كومنز و ممكن تستعمله المشاريع التانيه.
الوصف بتاعه صفحة وصف الملف هناك معروض تحت..
الخلاصة
وصفNGC 6753 by Hubble Space Telescope.jpg
English: Despite the advances made in past decades, the process of galaxy formation remains an open question in astronomy. Various theories have been suggested, but since galaxies come in all shapes and sizes — including elliptical, spiral, and irregular — no single theory has so far been able to satisfactorily explain the origins of all the galaxies we see throughout the Universe.
To determine which formation model is correct (if any), astronomers hunt for the telltale signs of various physical processes. One example of this is galactic coronas, which are huge, invisible regions of hot gas that surround a galaxy’s visible bulk, forming a spheroidal shape. They are so hot that they can be detected by their X-ray emission, far beyond the optical radius of the galaxy. Because they are so wispy, these coronas are extremely difficult to detect. In 2013, astronomers highlighted NGC 6753, imaged here by the NASA/ESA Hubble Space Telescope, as one of only two known spiral galaxies that were both massive enough and close enough to permit detailed observations of their coronas. Of course, NGC 6753 is only close in astronomical terms — the galaxy is nearly 150 million light-years from Earth.
NGC 6753 is a whirl of colour in this image — the bursts of blue throughout the spiral arms are regions filled with young stars glowing brightly in ultraviolet light, while redder areas are filled with older stars emitting in the cooler near-infrared.
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نسبه ل – لازم يتنسب العمل للى مألفه بشكل مناسب و توفير رابط للرخصه وتحديد اذا حصلت تغييرات. ممكن ده يتعمل بأى طريقه معقوله، لكن مش بطريقه تشير ان مانح الرخصه بيوافقك على الاستعمال.
https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue
الملف ده فيه معلومات إضافيه، غالبا ما تكون أضيفت من الديجيتال كاميرا أو السكانر ح الضوئى المستخدم فى نقل الملف للكومبيوتر.
إذا كان الملف اتعدل عن حالته الأصلية، فبعض التفاصيل مش ها تعبر عن الملف المعدل.
الرصيد/المزود
ESA/Hubble & NASAAcknowledgement: Judy Schmidt
المصدر
ESA/Hubble
عنوان قصير
More than meets the eye
عنوان الصورة
Despite the advances made in past decades, the process of galaxy formation remains an open question in astronomy. Various theories have been suggested, but since galaxies come in all shapes and sizes — including elliptical, spiral, and irregular — no single theory has so far been able to satisfactorily explain the origins of all the galaxies we see throughout the Universe. To determine which formation model is correct (if any), astronomers hunt for the telltale signs of various physical processes. One example of this is galactic coronas, which are huge, invisible regions of hot gas that surround a galaxy’s visible bulk, forming a spheroidal shape. They are so hot that they can be detected by their X-ray emission, far beyond the optical radius of the galaxy. Because they are so wispy, these coronas are extremely difficult to detect. In 2013, astronomers highlighted NGC 6753, imaged here by the NASA/ESA Hubble Space Telescope, as one of only two known spiral galaxies that were both massive enough and close enough to permit detailed observations of their coronas. Of course, NGC 6753 is only close in astronomical terms — the galaxy is nearly 150 million light-years from Earth. NGC 6753 is a whirl of colour in this image — the bursts of blue throughout the spiral arms are regions filled with young stars glowing brightly in ultraviolet light, while redder areas are filled with older stars emitting in the cooler near-infrared.
شروط الاستخدام
Creative Commons Attribution 4.0 International License