A straight line can readily be drawn among each of the two series of points corresponding to the maxima and minima, thus showing that there is a simple relation between the brightness of the variables and their periods.
A straight line can readily be drawn among each of the two series of points corresponding to the maxima and minima, thus showing that there is a simp… - Henrietta Swan Leavitt
A straight line can readily be drawn among each of the two series of points corresponding to the maxima and minima, thus showing that there is a simp…
- Henrietta Swan Leavitt
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