File:Euclid’s view of the Horsehead Nebula ESA25170866.tiff
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摘要
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描述Euclid’s view of the Horsehead Nebula ESA25170866.tiff |
English: Euclid shows us a spectacularly panoramic and detailed view of the Horsehead Nebula, also known as Barnard 33 and part of the constellation Orion. At approximately 1375 light-years away, the Horsehead – visible as a dark cloud shaped like a horse’s head – is the closest giant star-forming region to Earth. It sits just to the south of star Alnitak, the easternmost of Orion’s famous three-star belt, and is part of the vast Orion molecular cloud. Many other telescopes have taken images of the Horsehead Nebula, but none of them are able to create such a sharp and wide view as Euclid can with just one observation. Euclid captured this image of the Horsehead in about one hour, which showcases the mission's ability to very quickly image an unprecedented area of the sky in high detail. Read more about Euclid’s view of the Horsehead Nebula Explore this image at the highest resolution in ESASky Read more about Euclid's first images [Technical details: The data in this image were taken in just five hours of observation. This colour image was obtained by combining VIS data and NISP photometry in Y and H bands; its size is 8800 x 8800 pixels. VIS and NISP enable observing astronomical sources in four different wavelength ranges. Aesthetics choices led to the selection of three out of these four bands to be cast onto the traditional Red-Green-Blue colour channels used to represent images on our digital screens (RGB). The blue, green, red channels capture the Universe seen by Euclid around the wavelength 0.7, 1.1, and 1.7 micron respectively. This gives Euclid a distinctive colour palette: hot stars have a white-blue hue, excited hydrogen gas appears in the blue channel, and regions rich in dust and molecular gas have a clear red hue. Distant redshifted background galaxies appear very red. In the image, the stars have six prominent spikes due to how light interacts with the optical system of the telescope in the process of diffraction. Another signature of Euclid special optics is the presence of a few, very faint and small round regions of a fuzzy blue colour. These are normal artefacts of complex optical systems, so-called ‘optical ghost’; easily identifiable during data analysis, they do not cause any problem for the science goals. ] [Image description: This square astronomical image is divided horizontally by a waving line between a white-orange cloudscape forming a nebula along the bottom portion and a comparatively blue-purple-pink upper portion. From the nebula in the bottom half of the image, an orange cloud shaped like a horsehead sticks out. In the bottom left of the image, a white round glow is visible. The clouds from the bottom half of the image shine purple/blue light into the upper half. The top of the image shows the black expanse of space. Speckled across both portions is a starfield, showing stars of varying sizes and colours. Blue stars are younger and red stars are older.] |
日期 | 2023年11月7日 (上传日期) |
来源 | Euclid’s view of the Horsehead Nebula |
作者 | ESA/Euclid/Euclid Consortium/NASA image processing by J.-C. Cuillandre (CEA Paris-Saclay) G. Anselmi |
其他版本 |
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Activity InfoField | Space Science |
Keyword InfoField | Horsehead Nebula Stars |
Mission InfoField | Euclid |
Set InfoField | Euclid First Images |
许可协议
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This media was created by the European Space Agency (ESA).
Where expressly so stated, images or videos are covered by the Creative Commons Attribution-ShareAlike 3.0 IGO (CC BY-SA 3.0 IGO) licence, ESA being an Intergovernmental Organisation (IGO), as defined by the CC BY-SA 3.0 IGO licence. The user is allowed under the terms and conditions of the CC BY-SA 3.0 IGO license to Reproduce, Distribute and Publicly Perform the ESA images and videos released under CC BY-SA 3.0 IGO licence and the Adaptations thereof, without further explicit permission being necessary, for as long as the user complies with the conditions and restrictions set forth in the CC BY-SA 3.0 IGO licence, these including that:
See the ESA Creative Commons copyright notice for complete information, and this article for additional details.
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![]() ![]() ![]() 本文件采用知识共享署名-相同方式共享 3.0 政府间组织许可协议授权。 署名: ESA/Euclid/Euclid Consortium/NASA, image processing by J.-C. Cuillandre (CEA Paris-Saclay), G. Anselmi, CC BY-SA IGO 3.0
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说明
添加一行文字以描述该文件所表现的内容
Euclid shows us a spectacularly panoramic and detailed view of the Horsehead Nebula, also known as Barnard 33 and part of the constellation Orion.
知识共享署名3.0政府间组织 简体中文(已转写)
image/tiff
8,200 像素
8,200 像素
269,178,138 字节
7 11 2023
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当前 | 2023年11月7日 (二) 18:51 | ![]() | 8,200 × 8,200(256.71 MB) | OptimusPrimeBot | #Spacemedia - Upload of https://esamultimedia.esa.int/img/2023/11/Euclid-ERO-Horsehead.8K8K.tif via Commons:Spacemedia |
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用户备注 | {"shape": [8200, 8200, 3]} |
宽度 | 8,200 px |
高度 | 8,200 px |
压缩方案 | 未压缩 |
像素构成 | RGB |
方向 | 正常 |
色彩组分数 | 4 |
每带行数 | 128 |
水平分辨率 | 1 dpi |
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数据排布 | 大块格式 |
使用软件 | GIMP 2.10.18 |
文件修改日期时间 | 2023年10月29日 (日) 09:54 |
色彩空间 | sRGB |
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