The asteroid "Toro" is the most famous example. Toro's orbital mechanics are very interesting and useful as an example problem for testing out a celestial mechanics code. It's an interesting question about where you draw the line between Moon and asteroid. Our Moon's orbital mechanics is described through a modified three body problem where the Earth's gravitational field dominates . Toro's orbit is dominated by the Sun. Solution of the Earth-Moon-Sun problem was regarded by Issac Newton as one of his greatest failures. A theoretical model for the Moon's orbit was found in the early 20th century by an obscure genius named Brown.
Gary
Space/Science » in reply to Venus also has a moon....
The Earth has some of those as well
