spheric luminosity of light

例句：

1. 1.The spheric luminosity of the star is a mystery that scientists are still trying to solve.
   这颗星的球体发光亮度是一个科学家仍在试图解决的谜。
2. 2. The planet's spheric luminosity is measured in units of brightness, just like how we measure the brightness of our own eyes.
   行星的球体发光亮度是以亮度单位来衡量的，就像我们衡量自己眼睛的亮度一样。
3. 3. The spheric luminosity of the sun is so high that it can be seen from space.
   太阳的球体发光亮度如此之高，以至于从太空中都能看到。