File:A hazy nebula.jpg
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[編輯]描述A hazy nebula.jpg |
English: This new image from Hubble’s Wide Field Planetary Camera 2 showcases NGC 1501, a complex planetary nebula located in the large but faint constellation of Camelopardalis (The Giraffe). Discovered by William Herschel in 1787, NGC 1501 is a planetary nebula that is just under 5000 light-years away from us. Astronomers have modelled the three-dimensional structure of the nebula, finding it to be a cloud shaped as an irregular ellipsoid filled with bumpy and bubbly regions. It has a bright central star that can be seen easily in this image, shining brightly from within the nebula’s cloud. This bright pearl embedded within its glowing shell inspired the nebula’s popular nickname: the Oyster Nebula. While NGC 1501's central star blasted off its outer shell long ago, it still remains very hot and luminous, although it is quite tricky for observers to spot through modest telescopes. This star has actually been the subject of many studies by astronomers due to one very unusual feature: it seems to be pulsating, varying quite significantly in brightness over a typical timescale of just half an hour. While variable stars are not unusual, it is uncommon to find one at the heart of a planetary nebula. It is important to note that the colours in this image are arbitrary. A version of this image was entered into the Hubble’s Hidden Treasures image processing competition by contestant Marc Canale. Links Marc Canale on Flickr |
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來源 | http://www.spacetelescope.org/images/potw1444a/ |
作者 |
ESA/Hubble & NASA Acknowledgement: Marc Canale |
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[編輯]This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. | |
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目前 | 2014年11月4日 (二) 01:24 | 1,280 × 1,270(406 KB) | Jmencisom(對話 | 貢獻) | User created page with UploadWizard |
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下列4個頁面有用到此檔案:
- File:A hazy nebula (15706456952).jpg (檔案重新導向)
- File:Hubble views a cosmic oyster and pearl in NGC 1501 (28892679534).jpg (檔案重新導向)
- File:NGC 1501.jpg (檔案重新導向)
- File:The Oyster Nebula.jpg (檔案重新導向)
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製作/提供者 | ESA/Hubble & NASAAcknowledgement: Marc Canale |
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來源 | ESA/Hubble |
簡稱 |
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影像標題 |
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使用條款 |
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資料產生的日期時間 | 2014年11月3日 (一) 10:00 |
使用軟體 | Adobe Photoshop CC 2014 (Windows) |
原始文件唯一識別碼 | xmp.did:dac45761-66cc-214e-a0fb-42211136ecb9 |
關鍵字 | NGC 1501 |
聯絡資訊 |
http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM 版本 | 4 |