March 13, 1781: The planet Uranus discovered.
On this day English astronomer William Herschel first observed Uranus. He described how he found “a curious either nebulous star or perhaps a comet,†distinguished from the stars by its clearly visible disk. Its lack of any trace of a tail and its slow motion led to the suggestion that the observations were consistent with those of a planet moving in a nearly circular orbit.
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Topic: This Day in History: March 13, 1781 (Read 648 times)