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

What would life be worth if there were no death? Who would enjoy the sun if it never rained? Who would yearn for the day if there were no night? Glenn Ringtved