absolute magnitude中文什么意思

• 【天文学】绝对星等。

• absolute:    adj. 1.绝对的 (opp. r ...
• magnitude:    n. 广大，巨大；伟大，重大，重要性 ...
• absolute bolometric magnitude:    绝对热星等

例句与用法

1. Problems of urbanization are widely noted and studied, not only because of their absolute magnitude but also because of their visibility .
   城市化的问题正在受到广泛的注意和研究，不仅因为这些问题十分重要，而且非常突出。
2. 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。
3. 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。
4. 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。
5. This greatly simplifies the various analyses , for example , their relative apparent magnitudes are equal to their relative absolute magnitudes
   当然，成员星和地球的距离亦会差不多，因此大大简化了对成员星的分析。

英文释义

名词

1. (astronomy) the magnitude that a star would have if it were viewed from a distance of 10 parsecs (32.62 light years) from the earth

百科释义

Absolute magnitude (also known as absolute visual magnitude when measured in the standard V photometric band) is the measure of a celestial object's intrinsic brightness. It is also the apparent magnitude a star would have if it were 32.