Discovery - Discovery Discovery photographs of Pluto In the...

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Discovery Discovery photographs of Pluto In the 1840s, using Newtonian mechanics , Urbain Le Verrier predicted the position of the then- undiscovered planet Neptune after analysing perturbations in the orbit of Uranus . [23] Subsequent observations of Neptune in the late 19th century caused astronomers to speculate that Uranus' orbit was being disturbed by another planet besides Neptune. In 1906, Percival Lowell , a wealthy Bostonian who had founded the Lowell Observatory in Flagstaff, Arizona in 1894, started an extensive project in search of a possible ninth planet, which he termed " Planet X ". [24] By 1909, Lowell and William H. Pickering had suggested several possible celestial coordinates for such a planet. [25] Lowell and his observatory conducted his search until his death in 1916, but to no avail. Unknown to Lowell, on March 19, 1915, his observatory had captured two faint images of Pluto, but did not recognise them for what they were. [25]
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