* Astronomy

American observational astronomer Edwin Fath (23 August 1880 - 26 January 1959) made four significant discoveries: that spiral nebulae have spectra-like star clusters; as an exception to that observation, that a few spiral nebulae have broad emission lines; that the spectrum of zodiacal light is that of reflected sunlight; and that there is a class of pulsating variables with more than one pulsation period per star.
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