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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.
- The Editors of Encyclopaedia Britannica
Ejnar Hertzsprung was a Danish astronomer who discovered the main sequence and the period-luminosity relation for Cepheid variables. He also measured the distance to the Small Magellanic Cloud and the proper motions, colors, and magnitudes of thousands of stars.
May 9, 2018 · Learn about the life and achievements of Ejnar Hertzsprung, a Danish astronomer who discovered the main sequence of stars and the relation between stellar spectra and luminosity. Find out how he used photography, spectroscopy, and blackbody radiation to study the physical nature of stars.
The Hertzsprung–Russell diagram (abbreviated as H–R diagram, HR diagram or HRD) is a scatter plot of stars showing the relationship between the stars' absolute magnitudes or luminosities and their stellar classifications or effective temperatures.
Learn about the Danish astronomer who introduced the concept of absolute magnitude and the Hertzsprung-Russell diagram. Find out his biography, achievements, and publications in this comprehensive article.
Oct 8, 2022 · Learn about the life and achievements of Ejnar Hertzsprung, a Danish chemist and astronomer who developed the Hertzsprung-Russell diagram with Henry Norris Russell. The diagram shows the relationship between the stars' luminosity and temperature, and is a fundamental tool for studying stellar evolution.
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