Armillary Sphere
date: label: date made
content: ca 1550
name: label: maker
content: Vopel, Caspar
notes: label: Description
content: This small instrument shows the relative positions of the equator, ecliptic, and other important astronomical circles. At the center, presumably representing the earth, is a small ivory ball. The “CASPAR VOPEL ARTE” inscription on the Tropic of Cancer refers to Caspar Vopel (1511-1561) of Cologne who taught mathematics and made mathematical instruments.
label: Location
content: Currently not on view
topic: label: Subject
content: Astronomy
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content: Medicine and Science: Physical Sciences
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content: Astronomy
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content: Trigonometry
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content: Measuring & Mapping
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content: Spherical Trigonometry
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.327302
label: catalog number
content: 327302
label: accession number
content: 272528
objectType: label: Object Name
content: armillary sphere
physicalDescription: label: Physical Description
content: brass (overall material)
label: Measurements
content: overall: 26.5 cm x 13 cm; 10 7/16 in x 5 1/8 in
label: Measurements
content: overall: 10 in x 5 1/4 in; 25.4 cm x 13.335 cm