Biography Category
Name :
Kapteyn, Jacobus Cornelius
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Birth Date :
01/01/1970
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(yäk ´b s kôrn ´l s käpt n´) (KEY) , 1851–1922, Dutch astronomer. He was an authority on the Milky Way, of which he made notable statistical studies; he constructed a model of the galaxy known as the “Kapteyn universe.” He computed the positions of the stars of the Southern Hemisphere photographed by Sir David Gill and in 1904 announced the discovery of two streams of stars moving in opposite directions in the plane of the Milky Way.
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