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| Description: Classifying the Spectra of Stars (b) Annie Jump Cannon, analyzed hundreds of thousands of spectra. Social conventions of the time prevented most female astronomers from using research telescopes or receiving salaries comparable to those of men Picture Stats: Views: 1076 Filesize: 274.34kB Height: 900 Width: 1239 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=18387 |