Labels:text | font | screenshot | document OCR: 1868 Born on July 4 in Lancaster, Massachusetts. 1892 Develops an interest in astronomy while studying at Radcliffe College, Harvard University. 1895 Becomes a volunteer research assistant at Harvard College Observatory. She works on the cataloging of variable stars and, later, the measurement of stellar magnitudes under the guidance of Edward Pickering (1846-1919), a pioneer in this field. Her work, however, is interrupted by an illness that leaves her partially deaf. 1902 Becomes a permanent member of staff at Harvard College Observatory. 1908 Publishes a preliminary report on her findings for 25 Cepheid variable stars. 1912 Discovers what we now call the period-luminosity relationship for Cepheid variable stars. Two astronomers, Ejnar Hertzsprung (1873-1967) and Harlow Shapley (1885-197 ...
