Annie Jump Cannon Book order

Annie Jump Cannon was a pioneering astronomer whose systematic cataloging work laid the foundation for contemporary stellar classification. Alongside Edward Charles Pickering, she co-created the Harvard Classification Scheme, the first serious attempt to organize stars based on their temperatures. Her dedication and meticulousness earned her the nickname "Census Taker of the Sky" for classifying over 300,000 stars. Cannon was instrumental in advancing the acceptance and respect of women within the scientific community, paving the way for future female astronomers.