演化恒星的色球活动与恒星自转周期间存在很好的相关性。

The relation between stellar chromospheric activity and rotation of evolution stars have a good relativity.

youdao

演化恒星的色球活动与恒星自转周期间存在很好的相关性。

The relation between stellar chromospheric activity and rotation of evolution stars have a good relativity.

youdao