Part 3: The Universe
Scale in Part 3: 1/1,000,000,000,000,000,000,000,000,000,000 (one nonillionth)
Solar System diameter = smaller than an atom
Milky Way diameter = 4 inches
Universe diameter = 58 miles
In Part 3 you depart our galaxy and visit some galaxies in our local group. Next, you will see on of the largest known galaxies: IC 1101. The overall Helios Project experience will wrap up with a final sign shortly past IC 1101.
The total walking distance in Part 3 is just 1,000 feet.
| Actual Distance from Earth (light years) | Distance from Earth on Trail | |
| Andromeda | 2.5 million | 8.2 feet |
| Triangulum | 2.7 million | 8.9 feet |
| Local Group | 10 million dia. | 25 ft diameter |
| IC 1101 | 1.1 billion | 0.6 miles* |
| Farthest Galaxies | 48 billion (all directions) | 29 miles (all directions) |
* Due to the length of the trail, IC 1101 has been moved slightly closer
Learn more about the Andromeda ➔
