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  1. Calculate the scaled planet diameters and planet-sun distances for a solar system model. Enter scale or diameter or distance, select to show table and/or map below, select options, then press Calculate. Please enter scale or diameter or distance from sun.

  2. SOLAR SYSTEM CALCULATOR. To construct a solar system model, enter 5 (for example) in the scale factor box, click "Earth diameter" and you will have all the dimensions in terms of the Earth's diameter.

  3. Calculator for the distances and sizes in a scale model of the solar system. Such models, which illustrate the proportions in our solar system, in reality are implemented as planetary walks, where you start at a meter high Sun and walk a few kilometers to the only centimeter sized planets.

  4. Diameter: 49 pixels. Distance: 4,472,434.362 pixels. 1 pixel = 1,000 km. This 2D visual model illustrates the scale of the sun and planets in our solar system, and their current distance from each other.

  5. Click on the "Calculate" button. Notice that the distances and sizes of the planets will automatically fill in. I've also provided some other interesting scale comparisons at the bottom of the chart. You can now build your scale model.

  6. 1. The instructor will show you 3 model Earths to choose from. Which model Earth is the correct size/scale for our model 2.5m Sun?

  7. In this activity, students use scale, proportion and/or ratios to develop a scale solar system calculator. Using spreadsheet software, students will determine the size of and/or distances between planets on a solar system model that fits on a playground.

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