Encyclopedia : E : EJ : EJN (4 articles)

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Ejnar Hertzsprung
Ejnar Hertzsprung (October 8, 1873, Copenhagen – October 21, 1967, Roskilde) was a Danish chemist and astronomer. In the period 1911-1913 with Henry Norris Russell, he developed the Hertzsprung-Russell diagram. In 1913 he determined the distances to several Galactic Cepheid stars by statisti..
Ejnar Mikkelsen
Ejnar Mikkelsen (December 23 1880 Vester-Brønderslev - May 3, 1971 Copenhagen), was a Danish polar explorer and author. He is most known for his expenditions to Greenland, some of these recounted in Lost in the Arctic (1913). In 1924 he led an expedition to settle what later came to be Scoresbysu..

 

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