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Clyde Tombaugh's Second Photograph Essay

97 Words1 Pages
At the Lowell observatory in Flagstaff, Arizona, on February 18, 1929 an Astronomer named Clyde Tombaugh couldn’t believe what he was seeing through an eyepiece on a machine called a blink comparator Tombaugh examined to photos of the gemini constellation each showed the same glimmering stars but the pictures were not identical the second photograph was taken a week after the first and during that time something had changed the astronomer saw that a tiny beacon of light a mere pinprick was in a different place in the second photograph than it had ben in the first
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