Vopel Armillary Sphere

Description
This small instrument shows the relative positions of the equator, ecliptic, and other important astronomical circles. The signature on the Tropic of Cancer reads: “CASPAR VOPEL ARTE.” At the center, presumably representing the earth, is a small ivory ball.
Caspar Vopel (1511-1561) worked in Cologne teaching mathematics and making mathematical instruments.
Location
Currently not on view
date made
ca 1550
maker
Vopel, Caspar
Physical Description
brass (overall material)
Measurements
overall: 26.5 cm x 13 cm; 10 7/16 in x 5 1/8 in
overall: 10 in x 5 1/4 in; 25.4 cm x 13.335 cm
ID Number
PH.327302
catalog number
327302
accession number
272528
subject
Astronomy
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Trigonometry
Spherical Trigonometry
Astronomy
Data Source
National Museum of American History, Kenneth E. Behring Center

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