alb5413541

Stellar Spectrum, Variable Stars,1890s

The Henry Draper Catalogue is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications. By comparing the absorption lines of the Sun with emission spectra of known gases, the chemical composition of stars can be determined. The Henry Draper Memorial by Annie Jump Cannon, 1915. No photographer credited, 1890s (cropped and cleaned).
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Stellar Spectrum, Variable Stars,1890s
The Henry Draper Catalogue is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications. By comparing the absorption lines of the Sun with emission spectra of known gases, the chemical composition of stars can be determined. The Henry Draper Memorial by Annie Jump Cannon, 1915. No photographer credited, 1890s (cropped and cleaned).
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Album / Science Source
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Tamaño imagen:
3295 x 4800 px | 45.2 MB
Tamaño impresión:
27.9 x 40.6 cm | 11.0 x 16.0 in (300 dpi)