Clyde Tombaugh was able to discover the planet Pluto in 1930 by taking advantage of

Question

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Tombaugh discovered Pluto by using a technique that involved comparing photographic plates of the night sky taken several days apart and looking for objects that shifted position. This method is akin to stroboscopic movement, where movement is perceived in objects shown in rapid succession at different positions, rather than any of the other options listed.

Clyde Tombaugh Was Able to Discover the Planet Pluto in 1930