File:The_Galactic_Centre_and_Bulge_above_the_ESO_3.6-metre_telescope.jpg
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摘要
描述The Galactic Centre and Bulge above the ESO 3.6-metre telescope.jpg |
English: The ESO 3.6-metre telescope at La Silla, during observations. The Milky Way, our own galaxy, stretches across the picture: it is a disc-shaped structure seen perfectly edge-on. Above the telescope´s dome, here lit by the Moon, and partially hidden behind dark dust clouds, is the yellowish and prominent central bulge of the Milky Way. The whole plane of the galaxy is populated by about a hundred thousand million stars, as well as significant amounts of interstellar gas and dusts. The dust absorbs visible light and reemits it at longer wavelength, appearing totally opaque at our eyes. The ancient Andean civilizations saw in these dark lanes their animal-shaped constellations. By following the dark lane which seems to grow from the centre of the Galaxy toward the top, we find the reddish nebula around Antares (Alpha Scorpii). The Galactic Centre itself lies in the constellation of Sagittarius and reaches its maximum visibility during the austral winter season. The ESO 3.6-metre telescope, inaugurated in 1976, currently operates with the HARPS spectrograph, the most precise exoplanet “hunter” in the world. Located 600 km north of Santiago, at 2400 metres altitude in the outskirts of the Chilean Atacama Desert, La Silla was first ESO site in Chile and the largest observatory of its time. |
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来源 | http://www.eso.org/public/images/360-cm-la-silla-cc/ |
作者 | ESO/S. Brunier |
许可协议
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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知识共享署名4.0国际 简体中文(已转写)
12 9 2013
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来源 | European Southern Observatory |
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提供人 | ESO/S. Brunier |
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数据生成日期时间 | 2013年9月12日 (四) 12:00 |
关键词 | La Silla |
联系信息 |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |