![]() The fact is that the planets are mighty small and the distances between them are almost ridiculously large. They omit the three outermost planets, yet still cannot show the remaining ones far enough apart. But even the largest of such models-such as those that cover the ceilings of the Hayden Planetarium in New York and the Morehead Planetarium at Chapel Hill-are far too small. Or you may have seen a revolving model of the kind called an orrery (because the first was built for an Earl of Orrery in 1715). You may have seen a diagram of the Sun and planets, in a book. Probably not, for they are of an order so amazing that it is difficult either to realize or to show them. IntroductionĬan you picture the dimensions of the solar system? Find this and more publications at Ottewell’s website, Universal Workshop. Guy Ottewell has kindly given permission for this electronic presentation of The Thousand-Yard Model his exercise is presented in its original form, indexed with a few anchors to help you find you way around the large file. Both the relative size and spacing of the planets are demonstrated in this outdoor exercise, using a mere peppercorn to represent the size of the Earth. Email: is a classic exercise for visualizing just how BIG our Solar System really is.
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