The Largest Collection of Astronomical Glass Plate Negatives located at the CfA

The Harvard Plate Stacks is the most extensive collection of its kind in the world and spans over 550,000 glass plate negatives of the Universe. It was studied by Women Astronical Computers for over a century making discoveries we still use today.

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Harvard Plate Stacks, Astronomical glass plate negatives

Harvard Plate Stacks

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