On This Day…1977


On This Day... 10 March 1977

On this day in 1977 rings were discovered encircling Uranus. 

Astronomers James L. Elliot, Edward W. Dunham, and Douglas J. Mink confirmed the existence of a planetary ring system around the planet Uranus on 10 March 1977.  A Uranian ring system had been suspected since observations made by William Herschel made in 1789.

A system of 13 rings has been discovered to date. 

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