The Kapteyn Kamer (Kapteyn Room) at the Kapteyn Astronomical Institute of the University of Groningen (the Netherlands) has been organised in honour to Jacobus Kapteyn. One can find objects, publications, furniture and portrets from Kapteyn's time. [website]

Radio Kootwijk is a former radio station from the Dutch Communication Service (PTT). [more]

The Sterrenwacht Sonnenborgh (Sonneborgh Observatory) in Utrecht (the Netherlands) is an observatory with a long history. It was here that Henk van de Hulst sat down and predicted the existence of 21cm radio emission from hydrogenatoms in the beginning of 1944. Sonneborgh is now a museum and home for the Stichting de Koepel, the executing arm of the Royal Dutch Association for Meteorology and Astronomy (KNVWS) [website, dutch only]

The Oude Sterrewacht Leiden (Old Leiden Observatory, the Netherlands) is an observatory with a very long history. At this observatory Jan Oort worked as a director between 1945 and 1970. [more]

Close to the small town of Hoeven in the province of Brabant (the Netherlands) stands one of the two original Dutch Würzburg antennas with 7.5 meter diameter. [more]

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