# Stability of Lagarrange points

1. Oct 23, 2009

### E92M3

I was reading this on wiki:
http://en.wikipedia.org/wiki/Lagrangian_point

In the stability section, it claimed that for L4 and L5 to be stable the following must hold:

$$\frac{M_1}{M_2}\geq24.96$$

Why is this the case? Where can I find proof?

2. Oct 23, 2009