Harvard-Draper sequence

Harvard-Draper sequence

[¦här·vərd ′drā·pər ‚sē·kwəns]
(astronomy)
A system of classification of stellar spectra based on features that are found to vary in a smooth way from one star to another, and on the star's color. Also known as Harvard sequence
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Full browser ?