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单词 harvard classification
释义

Harvard classification

/ (ˈhɑːvəd) /

noun

a classification of stars based on the characteristic spectral absorption lines and bands of the chemical elements presentSee spectral type

Word Origin for Harvard classification

C20: named after the observatory at Harvard, Massachusetts, where it was prepared and published as part of The Henry Draper Catalogue (1924)

Words nearby Harvard classification

haruspex, haruspicy, Harvard, Harvard beets, Harvard chair, Harvard classification, Harvard frame, Harve, harvest, harvest bug, harvester
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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更新时间:2025/1/25 1:27:37