天体距离

天体距离测量的理论依据

Research on theories basis that measure of heavenly body distance

天体距离的测定

Determination of distance between celestial bodies

又到了大喊答题节目环节。下面哪个天体距离你9300万英里远？

Time for the Shoutout , which of the following objects is 93 million miles away from you ?

这颗有望成为第九大行星的天体距离太阳最近时是200亿英里，最远时可能是1000亿英里。

The potential ninth planet , at its closest , would be about 20 billion miles away ; at its farthest , it could be 100 billion miles away .

知道天文单位和光年是用来丈量天体之间距离的单位。

Know astronomical unit and light year are used for expressing the distance between celestial bodies .

其次，引力的强度还取决于天体之间的距离。

Secondly , the strength of gravitation depends on the distance between the bodies .

用解球面三角形的方法，通过两天体的球面距离，求得星位角，从而求得船位的经纬度。

Through the solution , the star position angle can be found with so-called " star distance "( Short for the spherical distance between two stars ) determined So as to have the fix solved .

测量两个天体之间的角距离；类似于八分仪。

An instrument for measuring the angular distance between celestial objects ; resembles an octant .

通过比较表观亮度和已知的绝对亮度，即可得出该天体和我们的距离。

The distance to such an object can be worked out by comparing its apparent brightness with its known , absolute brightness .

以太阳为中心的最远点；在天体运行轨道上距离太阳最远的点。

Apoapsis in solar orbit ; the point in the orbit of a planet or comet that is at the greatest distance from the sun .