Ernst Öpik
Estonian astronomer and astrophysicist
Ernst Julius Öpik was an Estonian astronomer and astrophysicist who spent the second half of his career at the Armagh Observatory in Northern Ireland. He is best known for his pioneering work on solar system dynamics. Wikipedia
Born: October 22, 1893, Kunda, Estonia
Died: September 10, 1985 (age 91 years), Bangor, United Kingdom
Grandchild: Lembit Öpik
Children: Uuno Öpik and Helgi Öpik