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     • Henrietta Swan Leavitt (born July 4, 1868, Lancaster, Massachusetts, U.S.—died December 12, 1921, Cambridge, Massachusetts) was an American astronomer known for her discovery of the relationship between period and luminosity in Cepheid variables, pulsating stars that vary regularly in brightness in periods ranging from a few days to several months.
     www.britannica.com › biography › Henrietta-Swan-Leavitt

     Henrietta Swan Leavitt | Biography & Facts | Britannica

2. www.britannica.com › biography › Henrietta-Swan-LeavittHenrietta Swan Leavitt | Biography & Facts | Britannica

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   Jun 30, 2024 · Henrietta Swan Leavitt, American astronomer known for her discovery of the relationship between period and luminosity in Cepheid variables, pulsating stars that vary regularly in brightness in periods ranging from a few days to several months.

   • Oberlin College

     Oberlin College, private coeducational institution of higher...

   • Photometry

     photometry, in astronomy, the measurement of the brightness...

   • Cepheid Variable

     In 1912 Henrietta Leavitt of Harvard Observatory discovered...

3. People also ask

   What did Henrietta Leavitt discover?

   • "Overlooked No More: Henrietta Leavitt, Who Unraveled Mysteries of the Stars - The portrait that emerged from her discovery, called Leavitt's Law, showed that the universe was hundreds of times bigger than astronomers had imagined". The New York Times. Archived from the original on March 27, 2024.

   Henrietta Swan Leavitt - Wikipedia

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   How did Leavitt contribute to astronomy?

   • Leavitt's careful work measuring the brightness of variable stars, forms the basis of astronomical understanding of such topics as distances in the universe and the evolution of stars. Such luminaries as astronomer Edwin P. Hubble praised her, stating that his own discoveries rested largely on her accomplishments.

   Biography of Astronomer Henrietta Leavitt - ThoughtCo

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   Did Leavitt discover space?

   • “All of those major discoveries rested on Leavitt’s discovery,” Wendy L. Freedman, a professor of astronomy and astrophysics at the University of Chicago, said in a phone interview, referring to the explosion of knowledge about space over the last century.

   Overlooked No More: Henrietta Leavitt, Who Unraveled Mysteries of the

   www.nytimes.com/2024/03/27/obituaries/henrietta-leavitt-overlooked.html

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   What was Leavitt's main focus?

   • NASA/STSCI Leavitt's main focus was a certain type of star called a Cepheid variable. These are stars that have very steady and regular variations in their brightnesses. She discovered a number of them in the photographic plates and carefully cataloged their luminosities and the period of time between their minimum and maximum brightnesses.

   Biography of Astronomer Henrietta Leavitt - ThoughtCo

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4. en.wikipedia.org › wiki › Henrietta_Swan_LeavittHenrietta Swan Leavitt - Wikipedia

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   Henrietta Swan Leavitt (/ ˈ l ɛ v ɪ t /; July 4, 1868 – December 12, 1921) was an American astronomer. Her discovery of how to effectively measure vast distances to remote galaxies led to a shift in the scale and understanding of the scale and the nature of the universe.

5. www.nytimes.com › 2024/03/27 › obituariesOverlooked No More: Henrietta Leavitt, Who Unraveled ...

   www.nytimes.com › 2024/03/27 › obituaries

   Mar 27, 2024 · In the early 20th century, when Henrietta Leavitt began studying photographs of distant stars at the Harvard College Observatory, astronomers had no idea how big the universe was.

6. www.thoughtco.com › astronomer-henrietta-leavittBiography of Astronomer Henrietta Leavitt - ThoughtCo

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   Jul 3, 2019 · Henrietta Swan Leavitt (1868-1921) was a U.S. astronomer whose work guided the field to understand distances in the universe. At a time when women's contributions were undervalued, attributed to male scientists, or ignored, Leavitt's findings were seminal to astronomy as we understand it today.

   • Author: Carolyn Collins Petersen

7. www.astronomy.com › science › meet-henrietta-leavittMeet Henrietta Leavitt, the woman who gave us a universal ruler

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   Feb 4, 2019 · Henrietta Swan Leavitt was one of many women “computers” who worked at Harvard University, cataloging stars around the turn of the last century. Women could be paid less than men, and were...

8. www.vox.com › unexplainable › 22547100How big is the universe? Henrietta Leavitt led Edwin ... - Vox

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   Jan 19, 2023 · Leavitt’s discovery — linking the pulse of one type of star to their actual brightness, as described in the graphic above — was the key to measuring objects farther and farther out into space.

9. www.space.com › annie-jump-cannon-henrietta-swanHow Annie Jump Cannon and Henrietta Swan Leavitt ...

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   Jun 27, 2023 · Henrietta Swan Leavitt discovered a relationship between the period of a star's brightness cycle to its absolute magnitude. The discovery made it possible to...