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The Bruce Murray Space Image Library

The Pluto Discovery Plates

The Pluto Discovery Plates

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Lowell Observatory Archives

The Pluto Discovery Plates
The photographic plates, taken 6 days apart with the 13 inch telescope, with which Clyde Tombaugh discovered Pluto. The arrows point to the position of Pluto on each of the two days.

Original image data dated on or about January 29, 1930

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