One of my former colleagues had a favorite planet scale complete with a variety of planets and how far they would be from the sum ( I remember one of the planets would have been down at the local Shop Rite). Here’s an online activity from the Smithsonian that allows you to create your own solar system to scale. Once you select the size of your earth (and the moon), you can see how large the orbit would be in your neighborhood. From the team at ScienceNetLinks, you are Sizing up the Universe.
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