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Ejnar Hertzsprung (Copenaghen, 8 ottobre 1873 – Roskilde, 21 ottobre 1967) è stato un astronomo e chimico danese. Negli anni 1911 - 1913 sviluppò, assieme ad Henry Norris Russell , il Diagramma Hertzsprung-Russell .
Ejnar Hertzsprung ( Danish: [ˈɑjnɐ ˈhɛɐ̯tsˌpʁɔŋ]; 8 October 1873 – 21 October 1967) was a Danish chemist and astronomer. Career. Hertzsprung was born in Frederiksberg, Denmark, the son of Severin and Henriette. He studied chemical engineering at Copenhagen Polytechnic Institute, graduating in 1898.
Ejnar Hertzsprung (born Oct. 8, 1873, Frederiksberg, near Copenhagen, Den.—died Oct. 21, 1967, Roskilde) was a Danish astronomer who classified types of stars by relating their colour to their absolute brightness—an accomplishment of fundamental importance to modern astronomy.
Ejnar Hertzsprung studied chemical engineering in Copenhagen, worked as a chemist in St. Petersburg, and studied photochemistry in Leipzig before returning to Denmark in 1901 to become an independent astronomer.
Ejnar Hertzsprung nacque a Copenaghen l’8 ottobre 1873. Si laureò in ingegneria chimica al Politecnico di Copenaghen nel 1898, quindi studiò fotochimica all’Università di Lipsia. Si interessò all’astronomia da suo padre, astronomo dilettante.
9 mag 2018 · In his 1907 paper Hertzsprung referred to the open star clusters as a method for deriving the relation between the radiation of a star and its color. Since the physical members of such a cluster would be of equal distance, or nearly so, their apparent magnitudes and colors should reveal this relation.
1 lug 2011 · “Nobody imagined that I should become an astronomer,” said Danish scientist Ejnar Hertzsprung. Indeed, when he was 20, his family sold his late father’s astronomy books. Nevertheless,...
