Ernst Öpik
From Wikipedia, the free encyclopedia
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.
Contents |
[edit] 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.
[edit] 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.
[edit] Exile
Öpik fled his native country in 1944 because the approaching Red Army raised fear among Estonians.
[edit] Awards
He won the Gold Medal of the Royal Astronomical Society in 1975 and the Bruce Medal in 1976.
[edit] 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.
