恒星根据它们的光谱被分为典型的几类，这就是摩根-基南（Morgan-Keenan ）分类法，即MK系统。
Stars are typically classified by their spectrum in what is known as the Morgan-Keenan or MK system.
一种实用的恒星分类法是基于测得的光谱类型序列。
A convenient classification of stars is based upon the observed sequence of spectral types.
一种实用的恒星分类法是基于测得的光谱类型序列。
A convenient classification of stars is based upon the observed sequence of spectral types.
应用推荐