File:ESO-Betelgeuse.jpg
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原始文件 （1,230 × 1,230像素，文件大小：86 KB，MIME类型：image/jpeg）
摘要
| 描述 |
English: Image of the supergiant star Betelgeuse obtained with the NACO adaptive optics instrument on ESO’s Very Large Telescope. The use of NACO combined with a so-called “lucky imaging” technique, allowed the astronomers to obtain the sharpest ever image of Betelgeuse, even with Earth’s turbulent, image-distorting atmosphere in the way. The resolution is as fine as 37 milliarcseconds, which is roughly the size of a tennis ball on the International Space Station (ISS), as seen from the ground. The image is based on data obtained in the near-infrared, through different filters. The field of view is about half an arcsecond wide, North is up, East is left |
| 日期 | |
| 来源 | https://www.eso.org/public/images/eso0927b/ |
| 作者 | ESO/P. Kervella |
| 授权 (二次使用本文件) |
https://www.eso.org/public/outreach/copyright.html |
许可协议
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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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| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2010年3月3日 (三) 15:31 | | 1,230 × 1,230（86 KB） | wikimediacommons>Luiscalcada | {{Information |Description={{en|1=Image of the supergiant star Betelgeuse obtained with the NACO adaptive optics instrument on ESO’s Very Large Telescope. The use of NACO combined with a so-called “lucky imaging” technique, allowed the astronomers t |
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