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.
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。
Henize 2-10, located about 30 million light-years away in the direction of the constellation Pixes, is neither massive nor bulging with a metropolis of stars at its center.
向着Pixes星座的方向,距我们3千万光年之遥的Henize 2 - 10质量又不大,而且在其中心也没有聚集大量恒星的核球。
For example, in addition to the location, direction, and color of the light, it's possible to control the Angle of the spotlight cone and the center bias of the cone.
例如,除了位置、方向和光线颜色,它还能够控制spotlight锥角和锥体离心值。
This particle is constantly changing its direction, but it therefore has an acceleration and the acceleration, we have shown here, is pointing towards the center.
这个质点恒定地改变它的运动方向,因此它具有加速度,而且这个加速度,我们前面也讲过了,指向圆心
It tells you when a particle moves in a circle, it has an acceleration in a negative R direction, namely directed towards the center.
它告诉你当一个物体在圆周上运动时,它有一个在 -R 方向的加速度,也就是说是直接指向圆心的
If you want to write it as a vector equation, you want to write it as v square over r minus-- I want to say that it's pointing in the direction toward the center.
如果要写出矢量方程,就应该写成 -v^2 / r,也就是说,方向就向圆心
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