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Sun is scaled one meter (39") in diameter. Actual Size of Sun: 1,391,000 km (864,000 mi) AU (“Astronomical Unit”) is the average distance between the Sun and Earth: 150 million km (93 million mi) A little more than 100 Sun diameters will span the distance of one AU.
Diameter of planets and their distance from the Sun in kilometers (km):
A Scale Model of the Solar System. On page 3 is a table which gives the sizes of the planets and the distances between them. It also gives those distances scaled down so that 1000 000 km is represented by 5 cm. On pages 4&5 are representations of the planets which you can print out to this scale.
Print labels for Planet Size and Distance. Plastic yellow tablecloth, at least 1 meter wide for the Sun. (Optional) Solar Viewer. (Optional) Make a Pocket Solar System: http://nightsky.jpl.nasa.gov/download-search.cfm. Topics Covered. Scaled sizes of the worlds of the Solar System. The realms of the Solar System . Participants.
Using a strip of paper, construct a quick scale model of the distances between the orbits of the planets, the Asteroid Belt, and Pluto as part of the Kuiper Belt. Topics Covered • Scaled distances of orbits in the Solar System • Types of objects in the Solar System • Usefulness of models Participants
This data will allow you to make a scale model of the solar system. For younger students, do a distance-only model. For older students, you might want to scale the size of the planets to the same scale as for the distances.
This 2D visual model illustrates the scale of the sun and planets in our solar system, and their current distance from each other.