绝对星等 meaning in Chinese
absolute magnitude
Examples
- We can also talk about the absolute magnitudes of objects like star clusters , galaxies , etc
绝对星等的概念可推广至星团星系等。 - For example , the apparent magnitude of our sun is - 26 . 8 , but its absolute magnitude is just 4 . 8 . the absolute magnitude describes the
例如太阳的视星等为- 26 . 9等，但它的绝对星等只有4 . 8等。 - We know the luminosity is directly related to the absolute magnitude . so , in practice , we usually use absolute magnitudes instead
由于光度和绝对星等有直接的对应关系，所以很多时赫罗图会选用绝对星等。 - The hertzsprung - russell diagram serves this purpose . it is a plot of absolute magnitude against surface temperature i . e . , spectral type of stars
简单来说，赫罗图把大量恒星的绝对星等和表面温度或谱型关系以图表方式显示出来。 - This is the apparent magnitude of an object at some standard distance from us . this standard distance is chosen to be about 32 light years 10 parsecs , see below
绝对星等是恒星距离为约32光年或10秒差距请参阅下一节时的星等。