My mission was to draw the planets (and Pluto!). Because the diameters are so large, I will need to use math and proportions to get them all to fit on the screen. Their diameters are: Mercury - 4,879 km Venus - 12,104 km Earth - 12,756 km Mars - 6,779 km Jupiter - 142,984 km Saturn - 120,536 km Uranus - 50,724 km Neptune - 49,244 km Pluto - 1,475 km