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hertzsprung russell diagram
Hertzsprung-Russell diagram noun phr. [,hǝ:tssprʌŋ'rʌs(ǝ)l ,dʌɪǝgram]
تردید، دودلی، درنگ، نجوم: ن
Hertzsprung-Russell diagram noun phr. [,hǝ:tssprʌŋ'rʌs(ǝ)l ,dʌɪǝgram] M20.[from E. Hertzsprung (1873-1967), Danish astronomer + H. N. Russell (1877-1957), US astronomer.]Astronomy. A diagram in which the visual magnitudes of stars are plotted against their spectral types or surface temperatures.
[TahlilGaran] English Dictionary ▲