Pieter Johannes van Rhijn
Pieter Johannes van Rhijn (March 24, 1886 – May 9, 1960) was a Dutch astronomer. Born in Gouda, he studied at Groningen. He served as director at the Sterrenkundig Laboratorium (Kapteyn Astronomical Institute) in Groningen and later served for many years as president of the International Astronomical Union (1932-1958).
- Stamboom geslacht Van Rhijn (Dutch language source)
- Biografie van Rhijn, Pieter Johannes van (Dutch language source)
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