| 1. | And stars in this region are called main sequence stars
，位于此区域的星则称为主序星。 |
| 2. | It takes about 0 . 1 to 100 million years for the cloud to become a main sequence star
这个收缩过程需要十万至一亿年，才能演化成一颗主序星。 |
| 3. | The corona activity of late - type main sequence stars also depend on the stellar spectral type
晚型主序星的冕球活动也表现出对恒星光谱型的依赖性。 |
| 4. | We will discuss what will happen to a main sequence star with a mass over about 8 solar masses
假若恒星的质量超过八个太阳质量的话，它会怎样演化呢？ |
| 5. | Similar to other main sequence stars , hydrogen nuclei will be fused to helium nuclei in the core
和其他恒星一样，大质量恒星会在主序阶段把氢转化为氦。 |
| 6. | Main sequence stars have stable luminosities and sizes . to be honest , they are quite boring compare to their deaths
主序星的光度和大小十分稳定，或者你可以说相对于恒星的死亡舞曲，主序阶段相当沈闷。 |
| 7. | For example , light emits from the surface of a typical main sequence star falls mainly in the optical window . that is why we can see our sun in daytime and countless stars at nighttime
例如，大部分主序星表面发射出来的辐射是可见光，因此我们能够在日间看见太阳，夜间看到漫天星斗。 |
| 8. | Furthermore , we also reserch the influence of setllar age to stellar activity of late - type stars . the relation of stellar chromospheric activity and rotation of late - type main sequence stars depend on stellar spectral type
大样本分析显示晚型主序恒星的色球活动与恒星自转参量的研究晚型主序恒星的色球活动与恒星自转参量间的关系表现出对恒星光谱型的依赖。 |
