Annie Jump Cannon (astronomer)

Annie Jump Cannon was an American astronomer known for her groundbreaking work in classifying stars. In the early 20th century, she developed the Harvard Classification Scheme, which categorizes stars based on their temperature and spectral characteristics. Cannon's system laid the foundation for modern astrophysics and significantly advanced our understanding of stellar evolution. Despite the challenges faced by women in science during her time, she became a key figure at the Harvard College Observatory and contributed to the cataloging of over 350,000 stars. Her work has had a lasting impact on the field of astronomy.