ESA announced three star Tugaya detector contains 1 billion stars to arrive at the Japanese L2 astronomical satellite launch Gaia 1000 days ago, and began work in scientific measurement in July 2014, the release is the deadline to September 2015 based on the first 14 months of the Gaia satellite survey to collect data. Tencent space news according to foreign media reports, the European Space Agency today published a drawing of the first astronomical satellite Gaia catalogue, the catalog includes 1 billion stars, is by far the largest area survey results all day long. In the process of stitching up the most detailed three-dimensional distribution of the Milky Way Galaxy in the history of the world, Gaia has determined the brightness of the 1 billion 14 million 200 thousand stars and their precise location in space. The project also struck a subsequent Gaia meter included more star chart. As an attempt to make this kind of star map, the star map released today gives the distance and the self information of more than 2 million stars in the space to the solar system. The European Space Agency’s science director Alvaro Nez said, Gimé the Gaia project is the forefront of contemporary astronomy research, we had never reached the accuracy of drawing all day long area map. It is just the tip of the iceberg that is waiting for us in front of us, and these data will bring a revolution in our understanding of the distribution and motion of stars in the galaxy. Gaia astronomical satellite launched in 1000 days ago, and began work in scientific measurement in July 2014, the release is based on data as of September 2015, the first 14 months of the Gaia satellite survey collected. Gaia probe was launched in 2014. Project scientist Timo Prusti said Gaia, released today the subtle chart reveals the stars distribution density measured in the entire space of Gaia to us, let us confirm the Gaia to the mass data collected in the first year of work. The stripes and some natural pattern chart, this is Gaia survey left by the shooting trajectory, reflects how the sky of gaia. With a 5 year mission Gaia constantly surveys, these patterns will gradually disappear. Dr Prusti added that the satellite works well. And we have shown that we are capable of working on the data of one billion stars. Although the present is still preliminary data, we still want to let them open as soon as possible, so that they can be used for the entire astronomical community. The transformation of the original information beyond precision satellite collected over the star position data is useful and reliable is a very complex process, this work was commissioned one composed of about 450 scientists and software engineers in the pan European cooperation organization and analysis of community physical Gaia data (DPAC) to complete. The chairman of the community, Anthony Brown of Leiden University in Holland, said that today’s release is the result of the hard work of the organization over the past ten years. Since the entire organization is made up of experts from various fields, the staff will have to do their homework before they can begin to observe, and then start processing the data. Experts will hit the raw data相关的主题文章: