July 4, 1868

“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.” Henrietta Swan Levitt

Henrietta Swan Leavitt American astronomer is born.

Henrietta Swan Leavitt was an American astronomer who discovered how to calculate the distance of a Star to Earth.

Henrietta Swan Leavitt   – Astronomer – Associated Links:


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Link to Photo Credit: Henrietta Swan Leavitt
Link to Photo Credit: Henrietta Swan Levitt

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