Solar Spectrum
Solar Spectrum
Usage conditions apply
- Description
- “PHOTOGRAPHIC MAP OF THE SOLAR SPECTRUM / MADE BY PROF. H. A. ROWLAND, JOHNS HOPKINS UNIVERSITY.” The scale extends from 44.8 to 49.4 units.
- Henry A. Rowland, the first professor of physics at Johns Hopkins University in Baltimore, Md., produced a photographic map of the solar spectrum using concave diffraction gratings made with his own ruling engine. This is a section of the first edition, published in 1886.
- Ref: “Photograph of the Normal Solar Spectrum. Made by Professor H. A. Rowland,” Johns Hopkins University Circular 5 (1886).
- Location
- Currently not on view
- Object Name
- spectrum photograph
- date made
- 1886
- maker
- Rowland, Henry A.
- place made
- United States: Maryland, Baltimore
- Measurements
- overall: 11 1/8 in x 35 3/8 in; 28.2575 cm x 89.8525 cm
- ID Number
- PH.322957.05
- accession number
- 79596Z12
- 249200
- catalog number
- 322957.05
- Credit Line
- Columbia University
- See more items in
- Medicine and Science: Physical Sciences
- Science & Mathematics
- Data Source
- National Museum of American History
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