'Ernst Julius Öpik' (
October 23,
1893 –
September 10,
1985) was a notable
Estonian astronomer and astrophysicist, who spent the last part of his career (
1948–
1981) at the
Armagh Observatory in
Northern Ireland.
Education
Öpik went to
University of Moscow to specialize in the study of minor bodies, such as
asteroids,
comets, and
meteors. He completed his doctorate at the
University of Tartu.
Astronomical work
In
1922 he correctly predicted the frequency of
craters on
Mars long before they were detected by
space probes. In
1932 he postulated a theory concerning the origins of comets in our
solar system. He believed that they originated in a cloud orbiting far beyond the orbit of
Pluto. This cloud is now known as the
Oort cloud or alternatively the Öpik-Oort Cloud in his honour. He also invented a
rocking camera for the study of meteors.
Exile
Öpik fled his native country in
1944 because the approaching
Red Army raised fear among Estonians. Living as a refugee in Germany, he became rector of the
Baltic University in Exile in the
displaced persons camps. In 1948 he was offered a post in Armagh and remained there despite offers of lucrative jobs in America.
Awards
He won the
Gold Medal of the Royal Astronomical Society in
1975 and the
Bruce Medal in
1976.
Legacy
The
asteroid 2099 Öpik is named in his honour. His grandson,
Lembit Öpik, is currently the Liberal Democrat Member of Parliament for
Montgomeryshire. He himself has some astronomical connection in that he is a noted supporter of searching for asteroids that may collide with the Earth.
References
External links
★
Sonoma State University on Ernst Öpik
★
Armagh Observatory on Ernst Öpik
★
Evening Standard (London); "Lembit and his Very Cheeky Family"