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Cambridge, Massachusetts
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The observatory was instrumental in developing the Harvard Classification Scheme, which is still used today to categorize stars based on their spectral characteristics.
The 'Harvard Computers,' a group of women, were pivotal in analyzing astronomical data and made groundbreaking discoveries, including the classification of stars by Annie Jump Cannon.
The observatory houses the world's largest collection of astronomical glass plates, with over 500,000 images dating back to the mid-19th century.
Established in 1839, the Harvard College Observatory is one of the oldest astronomical observatories in the United States.
It is a key component of the Harvard-Smithsonian Center for Astrophysics, which is a collaboration between Harvard University and the Smithsonian Institution.
Researchers at the observatory have been involved in identifying and studying planets outside our solar system, expanding our understanding of the universe.