Category:Ejnar Hertzsprung

**Ejnar Hertzsprung**
	Danish astronomer and chemist
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Name in native language	Ejnar Hertzsprung;
Date of birth	8 October 1873; Frederiksberg
Date of death	21 October 1967; Roskilde
Country of citizenship	Kingdom of the Netherlands; Denmark; Kingdom of Denmark;
Doctoral advisor	Wilhelm Ostwald (first doctoral advisor); Hans E. Lau (second doctoral advisor); Karl Schwarzschild (third doctoral advisor);
Doctoral student	Willem Jacob Luyten (1921); Gerard Kuiper (1933); Pieter Oosterhoff (1933); Hendrik van Gent (1932); Aernout de Sitter (1936); Adriaan Wesselink (1938); Lukas Plaut (1939); Jacobus Gijsbertus Ferwerda; Willem Christiaan Martin;
Occupation	astronomer; chemist; university teacher;
Employer	Leiden University; University of Göttingen; Leiden University (Faculteit der Wiskunde en Natuurwetenschappen, Q65561104, 1920–); Leiden University (Dutch ordinary professor, 1935–1944);
Member of	Royal Swedish Academy of Sciences; American Academy of Arts and Sciences; Royal Danish Academy of Sciences and Letters; Royal Netherlands Academy of Arts and Sciences;
Field of work	astronomy;
Work location	Leiden Observatory;
Notable work	discoverer of asteroids; Hertzsprung–Russell diagram;
Award received	Gold Medal of the Royal Astronomical Society (1929); Bruce Medal (1937);
Authority file
	Q295099; ISNI: 0000000031536407; VIAF ID: 54402399; GND ID: 118550098; Library of Congress authority ID: n94121075; Bibliothèque nationale de France ID: 146261404; IdRef ID: 08137464X; Biografisch Portaal van Nederland ID: 36220914; Nationale Thesaurus voor Auteursnamen ID: 070258600; NUKAT ID: n99007961; BabelNet ID: 03754828n; Open Library ID: OL1847925A; Mathematics Genealogy Project ID: 112140
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Ejnar Hertzsprung (1873—1967) — German astronomer.

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