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39 results for "DASCH"

39 results for "DASCH"

Using 19th Century Technology to Time Travel to the Stars

Miscellaneous

In the late 19th century, astronomers developed the technique of capturing telescopic images of stars and galaxies on glass photographic plates. This allowed them to study the night sky in detail. Over 500,000 glass plate images taken from 1885 to 1992...

High Speed Scanner: Digital Access to a Sky-Century

Miscellaneous Section

It is now feasible to design and build a high speed scanner system that can digitize astronomical images recorded on glass plates (8 x 10 in) to high photometric accuracy in under 30 sec. This makes possible the digital preservation of large volumes of...

How To Time Travel To a Star - Shelf Life | #5

Miscellaneous

Museum astrophysicists are searching through early photographs of the night sky and, with the help of high school students, helping to digitize them along the way. For more about astronomical instrumentation through the ages, head over to the episode...

Plate Stacks Collection Timeline

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This extensive timeline specifically includes dates associated with the Harvard Plate Stacks and individuals associated with it. It has been created and expanded for the over a decade. We will work to include citations for the dates in the future, but for...

Special Collections

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The Harvard Plate Stacks Special Collections include both archival materials and other specially curated content. Please see our Collections Access Policy for comprehensive information about accessing archival materials.