The scale below is designed to fit a hallway that is 180 feet long.
| Planet | Distance from Sun | Diameter |
| Mercury | 1 ft. 9 in. | 1.78 in. |
| Venus | 3 ft. 4 in. | 4.43 in. |
| Earth | 4 ft. 7 in. | 4.67 in. |
| Mars | 6 ft. 11 in. | 2.49 in. |
| Jupiter | 23 ft. 9 in. | 4 ft. 4 in. |
| Saturn | 43 ft. 6 in. | 3 ft. 8 in. |
| Uranus | 87 ft. 6 in. | 1 ft. 6.6 in. |
| Neptune | 137 ft. 2 in. | 1 ft. 5.8 in. |
| Pluto | 180 ft. | 1.1 in. |
On this scale, the sun would be a ball more than 42 feet in diameter. So it would not fit in a school hallway. And, on this scale, the nearest star to our solar system would still be 23,690,000 miles away!