<i>Sphaera Armillaris Copernicana</i>
date: label: date made
content: 1711
notes: label: Description
content: Stevin Tracy was an artisan in Rotterdam who, around 1670, made a magnificent mechanical model of the solar system. This model depicted the Sun, Mercury, Venus, Earth and Moon, Mars, Jupiter and its four largest moons, and Saturn. Peter Vander Aa, an engraver in Leyden, produced this engraved image of Tracy’s instrument in 1711, the year after the instrument was given to the University of Leyden. The explanatory text is in Latin and French.
label: Description
content: Ref: Henry C. King and John R. Millburn, <i>Geared to the Stars. The Evolution of Planetariums, Orreries, and Astronomical Clocks</i> (Toronto, 1978), pp. 213-214.
label: Location
content: Currently not on view
place: label: place made
content: Netherlands: South Holland, Leyden
topic: label: Subject
content: Astronomy
setName: label: See more items in
content: Medicine and Science: Physical Sciences
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content: Science & Mathematics
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content: Prints from the Physical Sciences Collection
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.323343
label: catalog number
content: 323343
label: accession number
content: 251006
objectType: label: Object Name
content: print
physicalDescription: label: Measurements
content: overall: 20 3/4 in x 15 3/8 in; 52.705 cm x 39.0525 cm