Antonie Pannekoek

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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Pannekoek, Antonie


Born Jan. 2, 1873, in Vaassen; died Apr. 28, 1960, in Amsterdam. Dutch astronomer. Member of the Netherlands Academy of Sciences (1925). Active in the Dutch workers’ movement.

Pannekoek was first a lecturer (1918–25) and then a professor of astronomy (1925–42) at the University of Amsterdam. In 1920 he developed a method of determining distances to dark nebulae and in 1921 studied the surface brightness of the Milky Way, disregarding the influence of interstellar light absorption. He was one of the first astronomers (in 1922 and 1926) to study the process of ionization in stellar atmospheres.

Pannekoek was involved in the workers’ movement at the beginning of the 20th century. In 1902 he became a member of the Social Democratic Workers’ Party of the Netherlands. In 1907 he helped found the left-wing Social Democratic paper De Tribune, and, together with other “tribunists,” he founded the Social Democratic Party of the Netherlands in 1909. From 1905 to 1914 he taught at the party school of the German Social Democrats in Berlin and was associated with the left wing of the German Social Democratic Party. He remained an internationalist during World War I and was involved in the publication of the journal Vorbote, organ of the Zimmerwald left. From 1918 to 1921 he was a member of the Communist Party of the Netherlands and until 1921 was active in the Comintern. He was one of the leaders of the ultraleft German Communist Workers’ Party (under the pseudonym K. Horner) and was sharply criticized by V. I. Lenin in “‘Left-wing’ Communism, an Infantile Disorder.”


De wonderbouw der wereld. Amsterdam, 1916.
De bouw en de ontwikkeling der sterren. The Hague, 1927.
“Photographische Photometrie der nördlichen Milchstrasse. …” Publication of the Astronomical Institute of the University of Amsterdam, 1933, no. 3.
In Russian translation:
Istoriia astronomii. Moscow, 1966.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
In 1927, together with the naked-eye Milky Way's greatest observer and illustrator, Antonie Pannekoek, Minnaert obtained from northern Sweden the first solar-eclipse flash spectrum that could be used for quantitative photometry.
Bond's illustrations of M42 and M31 (1876), and Antonie Pannekoek's sweeping naked-eye vistas of the Milky Way (1926) are not only fine works of art but also reveal some sense of the observer's personality.
But today this work is another example of a facet of our science that became nearly forgotten because technical progress led elsewhere." The article included drawings by the "greatest of all naked-eye observers of the galaxy," Antonie Pannekoek. To this day I know of no better renderings than his.