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GAIA-MAPPING A BILLION STARS

机译:GAIA绘制十亿颗星

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On 20 September Giuseppe Sarri, Gaia Project Manager, European Space Agency (ESA), gave a fascinating presentation in the Bill Boeing Lecture Theatre on the ESA's Gaia mission which will create the largest and most precise three-dimensional chart of our galaxy, the Milky Way. For decades to come, astronomers will use this information to find clues to the origin, structure and evolution, not only of our home galaxy, but of the universe as a whole. Gaia continues ESA's legacy of star charting that began with Hipparcos, the High Precision PARallax Collecting Satellite, launched in 1989, which improved our knowledge of the positions and velocities of 120,000 stars by three orders of magnitude. Gaia will improve that knowledge three orders of magnitude further and this time for more than a billion stars, extending Europe's pre-eminent position in this most fundamental form of astronomy.
机译:9月20日,欧洲航天局(ESA)盖亚项目经理朱塞佩·萨里(Giuseppe Sarri)在比尔·波音演讲厅作了关于欧空局盖亚任务的精彩演讲,该任务将创建我们银河系银河系最大,最精确的三维海图道路。在未来的几十年中,天文学家将使用这些信息来寻找线索,不仅是我们家星系的起源,结构和演化的线索,还包括整个宇宙的线索。盖亚(Gaia)继承了欧洲航天局(ESA)留下的星图遗产,始于1989年发射的高精度PARallax收集卫星Hipparcos,它使我们对12万颗星的位置和速度的了解提高了三个数量级。盖亚将进一步提高知识水平三个数量级,这次将超过十亿颗恒星,从而扩大欧洲在这一最基本的天文学形式中的杰出地位。

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