Annie Jump Cannon, astronomer

Dec. 11, 1863-Apr. 13, 1941

How We Are Smart by W. Nikola-Lisa, illustrated by Sean Qualls (Lee & Low Books, 2006)

Cannon was an astronomer and curator of photographs at Harvard Observatory. She was the person responsible for organizing stars into types (O, B, A, F, G, K, M), a classification that is still in use today.

Click on over to the Annie Jump Cannon Homepage at Wellsesly.edu.