File:La Silla.jpg
![File:La Silla.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/6/6b/La_Silla.jpg/800px-La_Silla.jpg?20130304134516)
原始文件 (3,871 × 2,513像素,文件大小:3.06 MB,MIME类型:image/jpeg)
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说明
摘要
[编辑]描述La Silla.jpg |
English: In this photograph, three telescopes are portrayed, all looking very different from each other. To the right of the water tanks is the ESO New Technology Telescope (NTT), which had its first light on 23 March 1989. This 3.58-metre telescope was the first ever to have a computer-controlled main mirror, which could adjust its shape during observations to optimise image quality. The octagonal enclosure housing the NTT is another technological breakthrough, ventilated by a system of flaps that makes air flow smoothly across the mirror, reducing turbulence and leading to sharper images.
To the right of the NTT is the Swiss 1.2-metre Leonhard Euler Telescope, which has a more traditional dome-shaped enclosure. It is operated by the Geneva Observatory at the Université de Genève in Switzerland, and had its first light on 12 April 1998. It is used to search for exoplanets in the southern sky; with its first discovery being a planet in orbit around the star Gliese 86. The telescope also observes variable stars, gamma-ray bursts and active galactic nuclei. In the foreground on the right is a building nicknamed the sarcofago (sarcophagus). This houses the TAROT (Télescope à Action Rapide pour les Objets Transitoires, or Rapid Action Telescope for Transient Objects), which started work at La Silla on 15 September 2006. This is the present-day photograph from the Then and Now Picture of the Week, Three Very Different Telescopes at La Silla. |
日期 | |
来源 | http://www.eso.org/public/images/potw1219b/ |
作者 | ESO |
其他版本 |
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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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Leonhard Euler Telescope
NTT
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在线著作权声明 | |
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提供者 | ESO |
来源 | European Southern Observatory |
使用条款 |
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简短标题 |
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图像标题 |
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数据生成日期时间 | 2012年5月7日 (一) 10:00 |
著作权状况 | 著作权状况未设置 |
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联系信息 |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |