Telescope (Moonwatch)

This small refracting telescope was made for Operation Moonwatch, a satellite tracking program organized in the 1950s. It has an aluminum tube, and an objective lens of 50 mm (about 2 inches) aperture. It carries the numbers “7580251” and “7638223.” It belonged to Everett Harrington Hurlburt, a professional astronomer and physicist.
Currently not on view
date made
ca 1956
around 1957
overall: 76 mm x 60.3 mm x 34.3 mm; 3 in x 2 3/8 in x 1 3/8 in
overall: 13 1/4 in x 4 in x 2 7/16 in; 33.655 cm x 10.16 cm x 6.19125 cm
ID Number
accession number
catalog number
Credit Line
Evelyn Hurlburt
See more items in
Medicine and Science: Physical Sciences
Science & Mathematics
Data Source
National Museum of American History, Kenneth E. Behring Center


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