National Museum of American History
Celestial Planisphere Called Astrolabe for Latitude 41
De Witt, Simeon · 1780
This small,,square paper instrument is the oldest surviving Anglo-American star map. It was drawn by hand in 1780 by Simeon de Witt, geographer to George Washington and the Continental army. It shows the bright stars visible in Ringwood, New Jersey, where he was stationed.
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