I did an astronomy experiment with my five year old yesterday. I calculated the scale of the sun and planets if the sun was 18 inches in diameter. We put the sun in front of our house and drew it in chalk. We then walked to where each planet was and drew it on the sidewalk in chalk. Jupiter was 2.5 inches in diameter at 1350 feet. Pluto ( I know) is 0.05 inches in diameter at 2 miles. When we walk that far out and look at that circle my son just drew, I wonder how even Hubble can get one pixel of Pluto.
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