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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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Titre:
Stellar Spectrum, Variable Stars,1890s
Légende: Voir la traduction automatique
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).
Crédit:
Album / Science Source
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Modèle: Non - Propriété: Non
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Taille de l'image:
3295 x 4800 px | 45.2 MB
Taille d'impression:
27.9 x 40.6 cm | 11.0 x 16.0 in (300 dpi)
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