Pyrheliometer
notes: label: Description
content: Samuel Pierpont Langley, the founding directory of the Smithsonian Astrophysical Observatory, was keen to map the intensity of solar radiation at different points in the spectrum, and this project continued long after Langley’s death in 1906. Charles Greeley Abbot unveiled his silver-disk pyrheliometer in around 1910 and, in time, Andrew Kramer, the SAO instrument maker, made nearly 100 copies for observers around the world. The “J. L. Rose / Upsala” inscription on the bracket is that of Josef Leonard Rose, an instrument maker in Uppsala.
label: Description
content: Ref: C. G. Abbot, “The Astrophysical Observatory of the Smithsonian Institution,” Astronomical Society of the Pacific Leaflet 16 (1947).
label: Location
content: Currently not on view
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.314882.01
label: catalog number
content: 314882.01
label: accession number
content: 211531
objectType: label: Object Name
content: pyrheliometer
physicalDescription: label: Measurements
content: overall: 15 1/4 in x 3 1/8 in x 5 1/2 in; 38.735 cm x 7.9375 cm x 13.97 cm