
 Computing the Libration Points 
  The libration points, also called the equilibrium or Lagrangian points, are solutions to the equations of motion for the spacecraft such that the x, y, and z positions and x, y, and z velocities are all 0. 
  To find the location of the 3 libration points lying on the earthsun axis (L1, L2, and L3), one must solve for the x coordinate of each. 
  Once the libration points have been located, one can search for orbits about these points. 
 www.geom.uiuc.edu /~megraw/MATH1/lib.html (308 words) 
