The Ejnar Hertzsprung reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Ejnar Hertzsprung

Ejnar Hertzsprung (October 8, 1873, Copenhagen - October 21, 1967, Roskilde) was a Danish chemist and astronomer. Along with Henry Norris Russell, he developed the Hertzsprung-Russell diagram (1910). Hertzsprung received the 1937 Bruce Medal.

Discovered the asteroids 1627 Ivar and 1702 Kalahari.

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