In my opinion the separation of the c- and ac-stars is the most important advancement in stellar classification since the trials by Vogel and Secchi ... To neglect the c-properties in classifying stellar spectra, I think, is nearly the same thing as if a zoologist, who has detected the deciding differences between a whale and a fish, would continue classifying them together.
-Ejnar Hertzsprung
Select a background
More quotes by Ejnar Hertzsprung
Popular Authors
A curated listing of popular authors.