Williamina Fleming, Antonia Maury, Henrietta Swan Leavitt, and Annie Jump Cannon feature prominently, as does Pickering's successor, Harlow Shapley.
As Annie Jump Cannon noted after participating in the international Committee on Classification of Stellar Spectra, "They sat at a long table, these men of many nations, and I was the only woman.
Among those profiled areAaAaAeAeAaAeAeA Annie Jump Cannon
, who created the Har Classification Scheme that organizes stars by their apparent magnitude and Sally Ride, the first American woman in space.
Project leader Emily Levesque of the University of Colorado Boulder, who earlier this year was awarded the American Astronomical Society's Annie Jump Cannon
Award, said studying these objects is exciting because it represents a completely new model of how stellar interiors can work.
This work is dedicated to the memory of Miss Beckly [28, p.134], Annie Scott Dill Russell [28, p.144-146], Margaret Huggins , Henrietta Swan Leavitt [30,31], Annie Jump Cannon
[32-34], Antonia Maury , Williamina Paton Stevens Fleming [36-38], Cecilia Payne-Gaposchkin  and the forgotten women of astronomy [39,40].
The notion of spectral classes came of age, however, with the work of the American astronomer Annie Jump Cannon
(1863-1941) who in 1918 began the meticulous and time-consuming task of studying and classifying the spectra of many thousands of stars.
Annie Jump Cannon
had been valedictorian of her class at Wellesley College.
Originally, the system classified stars alphabetically, but astronomer Annie Jump Cannon
, who studied the spectra of more than 325,000 individual stars, rearranged and merged the classes into seven basic groups: O, B, A, F, G, K, and M.
Chesterton (circa-1900 writer) to Robert Osserman (modern mathematician) to Einstein to Richard Feynman to John Wheeler to Annie Jump Cannon
(early 20th-century pioneer in stellar classification).
Around 1919 Annie Jump Cannon
, working at Radcliffe Observatory, detected the first DIB at a wavelength of 4430 angstroms in the spectrum of the star HD 80077.
Annie and the Stars of Many Colors takes us back to that age as a group of sixth graders explores the Harvard archives in search of the life and science of Annie Jump Cannon