Nov 12, 2016 · Henrietta Swan Leavitt was a Harvard "computer" — one of several women in the early 1900s who studied photographic plates for fundamental properties of stars. Leavitt is …

In astronomy, a period-luminosity relation is a relationship linking the luminosity of pulsating variable stars with their pulsation period. The best-known relation is the direct proportionality …

Before Leavitt discovered the period-luminosity relationship for Cepheid variables (sometimes referred to as Leavitt's Law), the only techniques available to astronomers for measuring the …

Dec 8, 2024 · Henrietta Swan Leavitt, American astronomer known for her discovery of the relationship between period and luminosity in Cepheid variables, pulsating stars that vary …

Jul 15, 2024 · The dynamic, lenticular photographs depict the periodic luminosity of 25 Cepheid variable stars that Leavitt first used to ascertain galactic distances. Writing in a 1912 …

Jul 5, 2018 · Leavitt discovered how to determine the size of the universe and distance between the stars by stacking glass plate photos of the night sky taken at different times and comparing …

Leavitt’s study of Cepheid type variable stars in the Magellanic Clouds led to her groundbreaking discovery that there is a relationship between the luminosity of a star and its period of …

Jan 13, 2020 · Henrietta Swan Leavitt’s contribution to the field of astronomy is that she gave us the tools to map out the stars in the universe. She discovered the correlation between Period …

On July 4, 1868, American astronomer Henrietta Swan Leavitt was born. She is best known for her discovery of the relation between the luminosity and the period of Cepheid variable stars. …

American astronomer who established a standard by which to chart the magnitude of the stars and discovered the period-luminosity of Cepheid variable stars during her 26-year career.