AstroKidsEverything in the sky › The Kuiper Belt
belt of small bodies · beyond Neptune

The Kuiper Belt

Second, much bigger asteroid-belt-like region of icy/rocky leftovers beyond Neptune, home to Pluto and other dwarf planets.

🚀 Travel there

What it is

Belt of small bodies: Whole populations of small bodies, not single objects. Every kind of thing there is →

Can you see it?

Not as one thing, no — the Kuiper Belt is a place rather than a sight, and you are already inside it. What you go out and look at are the things in it, one at a time.

Worth knowing about the Kuiper Belt

What it is made of
A second, much bigger 'asteroid belt' -- but made of icy, rocky leftovers instead of rocky ones. Contains Pluto, Makemake, Haumea, and an estimated hundreds of thousands of icy bodies larger than 100 km across, plus countless smaller ones.
What makes it worth knowing
Most short-period comets (ones that return in under 200 years, like Halley) are thought to originally come from this region.
The numbers
Distance from the Sun, on averageroughly 30 to 50 AU from the Sun

What it belongs to

☀️ Everything the Sun holds, in one place

Then go outside

Too big to look at all at once — but the things inside it are not. The Planetarium will show you which are up.

🌙 Plan an evening outside🌌 Everything else in the sky