英语词汇“distance modulus”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	distance modulus
释义	distance modulus noun astronomy a measure of the distance, r, of a celestial object too far away to show measurable parallax. It is given by m–M = 5 log (r/10), where m is its apparent magnitude (corrected for interstellar absorption) and M is its absolute magnitude
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