ASTRONOMER

Jacobus Kapteyn

1851 - 1922

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Jacobus Cornelius Kapteyn (19 January 1851 – 18 June 1922) was a Dutch astronomer. He carried out extensive studies of the Milky Way. He found that the apparent movement of stars was not randomly distributed but had two preferential directions: the two star streams. This discovery was later reinterpreted as evidence for galactic rotation. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Jacobus Kapteyn is the 154th most popular astronomer (up from 180th in 2019), the 213th most popular biography from Netherlands (up from 324th in 2019) and the 6th most popular Dutch Astronomer.

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Among ASTRONOMERS

Among astronomers, Jacobus Kapteyn ranks 154 out of 644. Before him are Wilhelm Beer, Hermann Carl Vogel, Adelard of Bath, James Dunlop, Eugène Joseph Delporte, and Maslama al-Majriti. After him are Jeremiah Horrocks, Bernard Lyot, Ingrid van Houten-Groeneveld, Joseph-Nicolas Delisle, William Parsons, 3rd Earl of Rosse, and Eleanor F. Helin.

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Contemporaries

Among people born in 1851, Jacobus Kapteyn ranks 20. Before him are Frederick Francis III, Grand Duke of Mecklenburg-Schwerin, Vincent d'Indy, Adolf von Harnack, Martinus Beijerinck, Friedrich von Wieser, and Knut Wicksell. After him are Charles Joseph Bonaparte, Bernardino Machado, Torakusu Yamaha, Charles Dupuy, Guillaume Bigourdan, and Arne Garborg. Among people deceased in 1922, Jacobus Kapteyn ranks 41. Before him are Hermann Alexander Diels, Alessandro Moreschi, Rafael Moreno Aranzadi, Giovanni Verga, Catherine Dolgorukov, and Wolfgang Kapp. After him are Lothar von Richthofen, Ōkuma Shigenobu, Wilhelm Voigt, Vlaho Bukovac, Edmund Leighton, and Gaston, Count of Eu.

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In Netherlands

Among people born in Netherlands, Jacobus Kapteyn ranks 213 out of 1,646. Before him are William I, Count of Hainaut (1287), Erik ten Hag (1970), Wesley Sneijder (1984), Salomon van Ruysdael (1602), Saskia Sassen (1947), and Johan Jongkind (1819). After him are Dries van Agt (1931), William I, Count of Holland (1167), Hendrick ter Brugghen (1588), Carel Struycken (1948), Geertgen tot Sint Jans (1460), and Wim Jansen (1946).

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Among ASTRONOMERS In Netherlands

Among astronomers born in Netherlands, Jacobus Kapteyn ranks 6. Before him are Jan Oort (1900), Antonie Pannekoek (1873), Gerard Kuiper (1905), Pieter van Musschenbroek (1692), and Tom Gehrels (1925). After him are Cornelis Johannes van Houten (1920), John Goodricke (1764), Adriaan Blaauw (1914), Maarten Schmidt (1929), Hendrik van Gent (1900), and Michael van Langren (1598).

Dutch born Astronomers

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