其中，速度表示星系后退的速度，H0为哈勃常数，也即宇宙膨胀速率的参数，而距离指的是星系与相比较星系之间的距离。
H0 is the Hubble constant, or parameter that indicates the rate at which the universe is expanding; and distance is the galaxy's distance from the one with which it's being compared.
那之后不久，埃德温.哈勃开始使用威尔逊山上新的胡克天文望远镜进行观测，作出了惊人的发现——还存在其它星系，我们依然不是它们的中心，而且它们正在以惊人的速度移动着。
Shortly thereafter, Edwin Hubble started making observations with the new Hooker Telescope on Mount Wilson and observed astounding facts. There are other galaxies.
科学家们利用哈勃望远镜计算出该恒星行进的方向和离银河系中心的距离，连同他的质量、年龄和速度一起计算。
The scientists used the Hubble to figure out the direction of the star's travels and the distance from the galactic center, along with the star's mass, age and speed.
应用推荐