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1916 in science
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==Astronomy== * [[Barnard's Star]] is discovered by [[Edward Emerson Barnard]]. * [[Harlow Shapley]] finds that the spectrum of [[S Sagittae]] and other [[Cepheid variable]]s varies with brightness, recording it as [[spectral type]] F0 leading to maximum, F4 at maximum, and G3 just before minimum brightness.<ref>{{cite journal|last=Shapley|first=Harlow|date=1916|title=The variations in spectral type of twenty Cepheid variables|journal=[[The Astrophysical Journal]]|volume=44|pages=273β91|doi=10.1086/142295|bibcode=1916ApJ....44..273S|doi-access=free}}</ref>
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