搜尋結果
Harvard classification
- IPA[ˈhärvərd ˌklasəfəˌkāSH(ə)n]
美式
- a system of classification of stars based on their spectral types, the chief classes (O, B, A, F, G, K, M) forming a series from hot bluish-white stars to cool dull red stars.
noun: Harvard classification, plural noun: Harvard classifications