How big is the Solar System?

The Solar System is really, really big, so big it’s like comparing a playground to the whole Earth!

Imagine you're playing in your favorite playground, and you decide to walk from one end to the other. That's about 100 meters. Now imagine if that playground was actually just one tiny part of the Solar System.

From the Sun to the Farthest Planet

The Sun is like a giant, bright light in the center of the playground. If we start walking from there, it takes us about 40 minutes to reach Neptune, the farthest planet we know, that’s almost as long as your whole school day!

But wait, the Solar System doesn’t stop at Neptune. There are even more things out there, like comets and dust, that can be way farther than Neptune.

The Whole Solar System in a Big City

If Earth were just one building in a big city, then the farthest parts of the Solar System would be all the way across the country! So it’s not just big, it's huge, like going from your house to another state!

And that’s just the Solar System, there are even bigger things out there, but that’s for another day! The Solar System is really, really big, so big it’s like comparing a playground to the whole Earth!

Imagine you're playing in your favorite playground, and you decide to walk from one end to the other. That's about 100 meters. Now imagine if that playground was actually just one tiny part of the Solar System.

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Examples

  1. A child compares the Solar System to a classroom, with Earth near the front and Neptune way at the back.
  2. Using a football field as a model, the Sun is at one end and Pluto is almost at the other.
  3. Imagine driving from New York to Los Angeles, that’s about how far it would be from the Sun to Neptune.

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