来自盖亚的三维银河运动
(原标题: Milky Way Motion in 3D from Gaia)
2022-07-06
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我们的天空因星星的流光而生机勃勃。这张由欧洲航天局盖亚卫星最近拍摄的数据绘制的特色地图清楚地显示了2600万颗银河系恒星的运动。蓝色的星星正在向我们移动，而红色的则表示远离。线条描绘了星星在天空中的运动。地图左边的大片蓝色区域和右边的红色区域给人的整体印象是，银河系中的恒星是围绕中心旋转的。了解恒星运动的细节有助于人类更好地了解银河系的复杂历史和太阳的起源。
查看原文解释
Our sky is alive with the streams of stars. The motions of 26 million Milky Way stars are evident in the featured map constructed from recent data taken by ESA's Gaia satellite. Stars colored blue are moving toward us, while red indicates away. Lines depict the motion of the stars across the sky. The large blue areas on the left and red areas on the map's right give the overall impression that stars in the Milky Way are rotating around the center. Understanding details about the motion of stars is helping humanity to better understand the complex history of our Milky Way galaxy and the origin of our Sun.