Jacobus 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).

Born January 19th, 1851 in Barneveld, Utrecht. [ref]

Died June 18th, 1922 at 71 years old in Amsterdam. [ref]

Occupations
astronomer, physicist, professor, university teacher
Wikipedia
Jacobus_Kapteyn

Do not seek death. Death will find you. But seek the road which makes death a fulfillment. Dag Hammarskjold