恒星光度 meaning in English

stellar luminosit
◇恒星光度计 astrophotometer; astrometer

Is the most important diagram in discussing stellar evolution . it is a plot of the surface temperature versus the brightness or luminosity of stars
是研究恒星演化最重要的工具，它显示了恒星表面温度和恒星光度的关系。
To tell others how bright a star is . it is a log scale in intensity . thus , magnitude and intensity both are scales for brightness of a star
来标示恒星的亮度，这是恒星光度的对数log ，所以，等数及光度皆可用来标示恒星的亮度。
If the distance between the star and the observer is double , we will see only 1 4 of the original intensity . this is the inverse square law
若恒星和观测者的距离倍增，那么看到的恒星光度便只及原来的四分之一，这就是平方反比定律。