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Results for "Astronomical observatories"
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Subject: De Sitter
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Astronomy (2)
De Sitter (2)
Leiden Observatory (2)
Sterrewacht Leiden (2)
Willem (2)
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Showing results 1 - 2 of 2 for
Astronomical observatories
Willem de Sitter (1872-1934)
Willem de Sitter (1872-1934)
Showing results 1 - 2 of 2 for
Astronomical observatories
![Willem de Sitter (1872-1934), Smithsonian Institution Archives, SIA Acc. 90-105 [SIA2008-0441].](https://ids.si.edu/ids/iiif/SIA-SIA2008-0441/full/250,/0/default.jpg "Willem de Sitter (1872-1934), Smithsonian Institution Archives, SIA Acc. 90-105 [SIA2008-0441].")
![Willem de Sitter (1872-1934), Smithsonian Institution Archives, SIA Acc. 90-105 [SIA2008-0440].](https://ids.si.edu/ids/iiif/SIA-SIA2008-0440/full/250,/0/default.jpg "Willem de Sitter (1872-1934), Smithsonian Institution Archives, SIA Acc. 90-105 [SIA2008-0440].")