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Object Number: 
Overall: 1 1/2 x 8 1/8 x 6 1/8 in. ( 3.8 x 20.6 x 15.6 cm )
Brass astrolabe; disk with three circular holes in upper half, numbered scale divided into quandrants incised around edge, and rotating bar across center with pierced right-angled tabs at either end; ring swivel-mounted at top.
Gallery Label: 
This brass astrolabe was among the objects on the 1909 replica of Henry Hudson's ship, "Half Moon." The English explorer set sail from Amsterdam in 1609 with backing from the Dutch East India Company, dropped anchor in the lower bay of what is now New York harbor, and then sailed up what was later named the Hudson River.
Credit Line: 
Gift of the Half Moon Committee of the Hudson-Fulton Exhibition, 1909
Due to ongoing research, information about this object is subject to change.
Creative: Tronvig Group