公里秒 meaning in English
kmps
Examples
- Expansion rate hubble constant value ho 71 km sec mpc with only 5 percents margin of error
71公里秒百万秒差，误差只有百分之五。 - This means galaxies further away will move away faster . one could argue that the hubble s constant is the most difficult parameter to measure in astronomy . different astronomers using different methods have found different values of h . it ranges from 50km s mpc to about 100km s mpc , with the most accepted value around 60km s mpc
哈勃常数可能是最难以量度的天文参数，不同的天文学家用不同的方法，得出不同的结果，计算出的数值由50公里秒百万秒差距至100公里秒百万秒差距不等，现在最被广泛接受的数值约为60公里秒百万秒差距。