kids encyclopedia robot

Asteroid moon facts for kids

Kids Encyclopedia Facts
243 ida
The asteroid 243 Ida and its moon Dactyl.

An asteroid moon is an asteroid that orbits or goes around another asteroid. Asteroid moons are quite rare. Only 2% of asteroids are thought to have moons.

To be an asteroid moon, an asteroid has to be smaller than the object it goes around. If they are roughly the same size they are called a binary pair.

kids search engine
Asteroid moon Facts for Kids. Kiddle Encyclopedia.