Willem de Sitter

Willem de Sitter
De Sitter, c.1930s
Born(1872-05-06)6 May 1872
Sneek, Friesland, Netherlands
Died20 November 1934(1934-11-20) (aged 62)
Leiden, South Holland, Netherlands
NationalityDutch
Alma materGroningen University
Known forDe Sitter Universe
Scientific career
FieldsPhysics
Doctoral advisorJacobus Kapteyn
Doctoral students
Signature

Willem de Sitter (6 May 1872  20 November 1934) was a Dutch mathematician, physicist, and astronomer. He is known for the de Sitter universe is a cosmological model, which was named after him.