File:Main image deep field smacs0723.png
原始文件 (4,537 × 4,630像素,文件大小:28.51 MB,MIME类型:image/png)
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摘要[编辑]
描述Main image deep field smacs0723.png |
English: NASA’s James Webb Space Telescope has produced the deepest and sharpest infrared image of the distant universe to date. Known as Webb’s First Deep Field, this image of galaxy cluster SMACS 0723 is overflowing with detail.
Thousands of galaxies – including the faintest objects ever observed in the infrared – have appeared in Webb’s view for the first time. This slice of the vast universe covers a patch of sky approximately the size of a grain of sand held at arm’s length by someone on the ground. This deep field, taken by Webb’s Near-Infrared Camera (NIRCam), is a composite made from images at different wavelengths, totaling 12.5 hours – achieving depths at infrared wavelengths beyond the Hubble Space Telescope’s deepest fields, which took weeks. The image shows the galaxy cluster SMACS 0723 as it appeared 4.6 billion years ago. The combined mass of this galaxy cluster acts as a gravitational lens, magnifying much more distant galaxies behind it. Webb’s NIRCam has brought those distant galaxies into sharp focus – they have tiny, faint structures that have never been seen before, including star clusters and diffuse features. |
日期 | |
来源 | https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-delivers-deepest-infrared-image-of-universe-yet / https://webbtelescope.org/contents/media/images/2022/038/01G7JGTH21B5GN9VCYAHBXKSD1 / full-res : https://stsci-opo.org/STScI-01G7JJADTH90FR98AKKJFKSS0B.png |
作者 | NASA, ESA, CSA, and STScI |
许可协议[编辑]
Public domainPublic domainfalsefalse |
This file is in the public domain because it was created by NASA, ESA and CSA. NASA Webb material 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/CSA is credited as the source of the material. This license does not apply if source material from other organizations is in use. The material was created for NASA by Space Telescope Science Institute under Contract NAS5-03127. Copyright statement at webbtelescope.org. For material created by the European Space Agency on the esawebb.org site, use the {{ESA-Webb}} tag. |
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作者 | Space Telescope Science Institute Office of Public Outreach |
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提供人 | NASA, ESA, CSA, STScI, Webb ERO Production Team |
来源 | STScI |
使用条款 | |
数据生成日期时间 | 2022年7月12日 (二) 00:00 |
联系信息 | outreach@stsci.edu
3700 San Martin Drive Baltimore, MD, 21218 USA |
关键词 | SMACS 0723-73 |
水平分辨率 | 118.11 dpc |
垂直分辨率 | 118.11 dpc |
文件修改日期时间 | 2022年7月7日 (四) 13:12 |