ContributorsPublishersAdvertisers

Annie Jump Cannon

abc27.com

May 9, 1922: Annie Jump Cannon, ‘Census Taker of the Sky’

(WHTM) — On May 9, 100 years ago, the International Astronomical Union adopted an “industry standard” for categorizing stars. Its creator was a Harvard “computer” named Annie Jump Cannon. Cannon was born in Delaware in 1863. Early on, she had an interest in the stars....
ASTRONOMY
Picture for May 9, 1922: Annie Jump Cannon, ‘Census Taker of the Sky’
ZME Science

Annie Jump Cannon: the legend behind stellar classification

It is striking that today, we can not only discover but even classify stars that are light-years from Earth — sometimes, even billions of light-years away. Stellar classification often uses the famous Hertzsprung–Russell diagram, which summarises the basics of stellar evolution. The luminosity and the temperature of stars can teach us a lot about their life journey, as they burn their fuel and change chemical composition.
ASTRONOMY
Picture for Annie Jump Cannon: the legend behind stellar classification
RELATED CHANNELS