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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
Multiply the scaling factor 10 cm/AU by the actual distance from the Sun to each of the planets in AU. After calculations are complete, have each group use 400 cm string and measure distance of planet from sun using meter sticks. Use pieces of tape to mark planets.
Problem 1 - The table below gives the distance from the Sun of the eight planets in our solar system. By setting up a simple proportion, convert the stated distances, which are given in millions of kilometers, into their equivalent AUs, and fill-in the last column of the table.
Problem 1 - The table below gives the distance from the Sun of the eight planets in our solar system. By setting up a simple proportion, convert the stated distances, which are given in millions of kilometers, into their equivalent AUs, and fill-in the last column of the table.
Below you will proceed through a number of steps that will allow for the development of a scale model of the Solar System. For this exercise, we will use the convenient unit of the Earth-Sun distance, the Astronomical Unit (AU). Using the AU allows us to keep our numbers to manageable sizes. Fill in the first and second columns of Table 6.1.
Jupiter's distance from the Sun in astronomical units is approximately 5.2 astronomical units away from the Sun. That's more than five times the distance between Earth and the Sun. To find this distance in kilometers, multiply it by the conversion factor 1 au = 149,597,870.7 km: d = 5.2 au × 149,597,870.7 km/au = 777,908,927.64 km.
Now let’s travel from the Earth to the Sun. The average Earth-to-Sun distance, ∼ 150 million kilometers (∼ 93 million miles), is referred to as one Astronomical Unit (AU).
