Annie Jump Cannon
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Annie Jump Cannon was an American astronomer whose cataloging work was instrumental in the development of contemporary stellar classification. With Edward C. Pickering, she is credited with the creati
Cannon in 1922
Cannon with Henrietta Swan Leavitt, 1913
Annie Jump Cannon at her desk at the Harvard College Observatory
Historical marker noting the building (right) where Cannon first observed stars at Wesley College
Henrietta Swan Leavitt
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Henrietta Swan Leavitt was an American astronomer. Her discovery of how to effectively measure vast astronomical distances led to a shift in the understanding of the scale and nature of the universe.
Annie Jump Cannon
…In 1901, Cannon published her first catalog of stellar spectra. Cannon and the other women at the observatory, including Henrietta Swan Leavitt, Antonia Maury, and Florence Cushman, were criticized at first for being "out of their place" and not being housewives. Women did not commonly rise…
Leavitt, c. 1898
The observatory at Harvard where Henrietta Swan Leavitt worked.
Henrietta Leavitt (third from left) is shown working among "The Harvard Computers" who assisted astronomer Edward Charles Pickering at the Harvard College Observatory. The assistants also included Annie Jump Cannon, Williamina Fleming, and Antonia Maury.
Leavitt working at her desk in the Harvard College Observatory.