Jacobus Cornelius Kapteyn
Dutch astronomer, best known for his extensive studies of the Milky Way and as the first discoverer of evidence for galactic rotation (1851-1922)
English: Jacobus Cornelius Kapteyn (1851–1922) was a Dutch astronomer.
Nederlands: Jacobus Cornelius Kapteyn (1851–1922) was een Nederlans astronoom.
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Jacobus Cornelius Kapteyn (1851 – 1922) -
Picture of Jacobus Cornelius Kapteyn made at the Mount Wilson Observatory in 1908. -
Painting of J.C. Kapteyn at his desk -
Jacobus Cornelis Kapteyn (1851-1922) painted by Jan Pieter Veth (1864-1925) -
