Classical mechanics is compatible with Schroedinger's equation without
any approximation of the standard WKB semiclassical quantum type. In
order to illustrate this property, we propose an exact Schroedinger th
eory for Nottale's macro-quantization of the solar system in which nei
ther semiclassical approximations nor the probabilistic Born postulate
are assumed. We point out the existence and properties of radial-velo
city proto-planetary solitons that describe the swarm of chaotic orbit
s supposed to dominate at the later stage of the solar system formatio
n, in accordance with Nottale's scale-relativity theory.