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Willem Hendrik van den Bos

Willem Hendrik van den Bos
Born(1896-09-25)25 September 1896
Rotterdam
Died30 March 1974(1974-03-30) (aged 77)
Johannesburg, South Africa
Alma materLeiden University
Known for2895 double stars discovered
Scientific career
FieldsAstronomy
InstitutionsUnion Observatory
Thesis Micrometer measurements of double stars  (1925)
Doctoral advisorWillem de Sitter

Willem Hendrik van den Bos (25 September 1896 – 30 March 1974) was a Dutch astronomer who worked at the Union Observatory in South Africa and became its director in 1941. He discovered nearly 3000 new double stars, made more than 71000 astronomical measurements and compiled a catalogue of Southern hemisphere double stars.[1][2] He computed the orbits of more than 100 double stars using a method he invented[3] and which later became the accepted standard.[1]

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