Pluto Discovery Plates

Pluto Discovery Plates

Pluto

Copy of sections of the original glass plates on which Pluto was discovered. The arrows show Pluto's movement against the background stars. Clyde Tombaugh discovered it by blinking the plates back and forth on a machine called a Blink Comparator.

Lowell Observatory

1930

This object is property of the Lowell Observatory Archives. Any public use requires the written permission of the Lowell Observatory Archives. Contact us at http://www2.lowell.edu/Research/library/

Black and white photograph

English

Image