Ejnar Hertzsprung

Ejnar Hertzsprung (8 October 1873 – 21 October 1967) was a Danish chemist and astronomer born in Copenhagen. In the period 1911–1913, together with Henry Norris Russell, he helped to create the Hertzsprung–Russell diagram.

Ejnar Hertzsprung
Hertzsprung (right) and Karl Schwarzschild in front of the Göttingen Observatory building (1909)
Born	(1873-10-08)8 October 1873 Copenhagen, Denmark
Died	21 October 1967(1967-10-21) (aged 94) Roskilde, Denmark
Alma mater	Copenhagen Polytechnic (DTU)
Known for	Hertzsprung–Russell diagram
Awards	Bruce Medal 1937
Scientific career
Fields	Chemistry, Astronomy
Institutions	Leiden Observatory

Asteroids discovered

• 1627 Ivar (25 September 1929)
• 1702 Kalahari (7 July 1924)

Awards

• Gold Medal of the Royal Astronomical Society in 1929
• Bruce Medal in 1937

Named after him

• lunar impact crater Hertzsprung
• main-belt asteroid 1693 Hertzsprung

Other websites

• Bruce Medal page
• Awarding of Bruce Medal: PASP 49 (1937) 65
• Awarding of RAS gold medal: MNRAS 89 (1929) 404