Astronomical Quadrant (replica)
name: label: maker
content: Elkington & Co.
notes: label: Description
content: Wilhelm IV (1532-1592), Landgrave of Hesse, established an observatory and began work on a new star catalog. One instrument at his disposal was a brass and iron azimuth quadrant that was associated with the Danish astronomer, Tycho Brahe, and that probably dates from the 1570s. The Royal Museum in Kassel sent that historic quadrant to London in 1876, for the Special Loan Collection of Scientific Instruments, and Elkington & Co. made a replica for the Science Museum. That same Birmingham firm made this replica for the Smithsonian in the early 1890s. William A. Rogers, Professor of Physics and Astronomy at Colby College, determined the errors of its circles.
label: Description
content: Ref: <i>Catalogue of the Special Loan Collection of Scientific Apparatus</i> (London, 1876), pp. 346-347.
label: Description
content: William A. Rogers, “Determination of the Errors of the Circles of an Electrotype Copy of Tycho Brahe’s Altitude Azimuth Instrument now in Possession of the Smithsonian Institution,” paper read to National Academy of Sciences in 1894.
label: Location
content: Currently not on view
place: label: place made
content: United Kingdom: England, Birmingham, Birmingham
setName: label: See more items in
content: Medicine and Science: Physical Sciences
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.181130
label: catalog number
content: 181130
label: accession number
content: 24885
objectType: label: Object Name
content: Astronomical Quadrant (replica)
physicalDescription: label: Measurements
content: overall: 42 in x 37 in x 37 in; 106.68 cm x 93.98 cm x 93.98 cm