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Digitizing a Century of Astronomical Images

A high-speed scanner is being used to create a digital database of more than 500,000 glass photonegatives.

Thomas L. Vogelsong and David W. Gardner, Salvador Imaging Inc., Robert J. Simcoe, Harvard College Observatory, and Jonathan E. Grindlay, Harvard University

From the early 1880s to the late 1980s, observers from Harvard College Observatory in Cambridge, Mass., took more than 500,000 astronomical images of the night sky from Harvard telescopes around the world. Most of that collection is stored at Harvard in the form of 8 × 10-in. glass...Read full article

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