单词 | Hertzsprung-Russell diagram |
释义 | Hertzsprung-Russell diagram(ˈhɜːtssprʌŋˈrʌsəl) noun a graph in which the spectral types of stars are plotted against their absolute magnitudes. Stars fall into different groupings in different parts of the graph See also main sequence Word origin C20: named after Ejnar Hertzsprung and Henry Norris Russell |
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